DI 104B Gastite Guide

User Manual: DI 104B

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SEPTEMBER 2017

www.gastite.com

DESIGN AND INSTALLATION GUIDE

Commercial I Industrial I Residential

SECTION 1: INTRODUCTION / SEPTEMBER 2017

Important Lightning Safety Warning

1 PROPERLY BONDING and grounding the

Corrugated Stainless Steel Tubing (CSST) system

may reduce the risk of damage and ﬁre from a lightning

strike. Lightning is a highly destructive force. Even a

nearby lightning strike that does not strike a structure

directly can cause systems in the structure to become

electrically energized. Differences in potential between

systems may cause the charge to arc between systems.

Such arcing can cause damage to CSST, including holes.

Bonding and grounding should reduce the risk of arcing

and related damage. The building owner should conﬁrm

that a qualiﬁed contractor has properly bonded the

CSST gas system to the grounding electrode system of

the premises. Refer to Section 4.10 Electrical Bonding/

Grounding in the Gastite® Design & Installation Guide

for details on bonding & grounding CSST.

2 ALL OWNERS should consult a lightning safety

consultant to determine whether installation of a light-

ning protection system would be required to achieve

sufﬁcient protection for all building components from

lightning. Factors to consider include whether the area

is prone to lightning. Areas with high lightning risk in-

clude but are not limited to: Alabama, Arkansas, Florida,

Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana,

Maryland, Michigan, Mississippi, Missouri, New Mexi-

co, North Carolina, Ohio, Oklahoma, Pennsylvania, South

Carolina, Tennessee, Texas, Virginia and West Virginia.

One currently available source of information regard-

ing areas more prone to lighting than others is the ﬂash

density map provided by the National Weather Service

which can be found at http://www.lightningsafety.noaa.

gov/lightning_map.htm. Lightning protection systems

are beyond the scope of this manual and installation

guidelines, but are covered by National Fire Protection

Association, NFPA 780, the Standard for the Installation

of Lightning Protection Systems, and other standards.

3 THE OWNER should conﬁrm with the local

gas supply utility company that a suitable dielectric

union is installed at the service entry of the structure

between underground metallic piping and the gas

pipes going into the building as required by code.

LIGHTNING SAFETY WARNING

4 NATIONAL ELECTRIC CODE (NEC), Sec-

tion 250.104b, states that “bonding all piping and metal

air ducts within the premises will provide additional

safety.” Gastite recommends that all continuous metallic

systems be bonded and grounded. The owner should

conﬁrm with an electrical or construction specialist

that each continuous metallic system in a structure has

been bonded and grounded by an electrical professional

in accordance with local building codes. This should

include, but is not limited to metallic chimney liners,

metallic appliance vents, metallic ducting and piping,

electrical cables, and structural steel.

5 DIRECT CONTACT between continous

metallic systems and Gastite® yellow CSST is prohibited.

Maintain as much isolation/separation as reasonably possible

when planning and installing gas piping from other

continuous metalllic systems. Refer to sec. 4.3

Routing, in the Gastite® D&I Guide for installation

techniques. Consult local building codes as to required

separations for CSST from such continuous metallic systems

including metallic chimney liners, metallic appliance vents,

metallic ducting and piping, and insulated or jacketed

electrical wiring and cables. See for instance the Indiana

Residential Code, section 675 IAC 14-4.3-155.5 Section

G2411.1; gas pipe bonding.

6 LOCAL BUILDING CODES are controlling,

however, as a general practice, fuel gas piping, including

CSST, should not be installed within a chase or enclosure

that houses a metallic chimney liner or appliance vent

that protrudes through the roof. In the event such an

installation of Gastite® yellow CSST is necessary and conforms

to local building codes, the metallic chimney liner or vent must

be bonded and grounded by a qualiﬁed electrical professional,

and a separation distance, as speciﬁcally permitted by the

applicable local building code between the CSST and

the metallic chimney liner or vent, is required. Physical

contact between CSST and the metallic chimney liner

and/or vent is prohibited. If this physical separation

cannot be speciﬁcally identiﬁed in the local building

code and achieved or any local building code require-

ments cannot be met along the entire length, then

rerouting of the CSST is required unless such installation

is speciﬁcally permitted by the local building inspector.

GENERAL 1/20/13

www.gastite.com

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com iii

FLASHSHIELD™ INSTALLER INFORMATION & UPDATES

1) When using the XR3 ﬁtting, proper removal of the outer jacket layer on FlashShield CSST is required for optimal

electrical continuity of the system. Using the Jacket Stripping Tool is the easiest way to achieve the correct

FlashShield end-prep condition and to ensure electrical continuity of the system.

2) Licensed Installers Only. Every installer of FlashShield™ or Gastite® must ﬁrst meet all applicable qualiﬁcations in

accordance with state and/or local requirements as established by the administrative authorities that enforce the

plumbing or mechanical codes where gas piping is installed.

3) Qualiﬁed Installers Only. In addition to be licensed in the jurisdiction, FlashShield™ or Gastite® corrugated stainless

steel tubing (CSST) ﬂexible gas piping material must only be installed by an installer who has been successfully

trained through the FlashShield™ and Gastite® training program.

4) Check for Updates. Installers should check with their local distributor or at www.gastite.com for technical bulletins

or updated Design & Installation Guides for FlashShield™ or Gastite® every year.

5) Proper Installation. Sound engineering principles and practices must be exercised for the proper design of fuel gas

piping systems, in addition to compliance with local codes. e installation instructions and procedures contained

in this Design & Installation Guide must be strictly followed in order to provide a safe and eﬀective ﬂexible fuel gas

piping system or system modiﬁcation. All installations must pass inspections by the local oﬃcial having authority

prior to having the gas service turned on. All requirements of the local natural gas utility or propane supplier must

also be met.

Proper FlashShield End Prep Proper XR3 Bushing Placement

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

TABLE OF CONTENTS / SEPTEMBER 2017

SECTION 1.0 INTRODUCTION

1.1 GENERAL USER WARNINGS ............................................................................................................. 2

1.2 LIMITATIONS OF THE GUIDELINES .................................................................................................. 5

1.3 STANDARDS, LISTINGS AND CODES ................................................................................................ 5

SECTION 2.0 SYSTEM DESCRIPTIONS & COMPONENTS

2.1 SYSTEM DESCRIPTIONS .................................................................................................................... 6

2.1.1 GAST I T E® SYSTEM DESCRIPTION ................................................................................................................... 6

2.1.2 FLASHSHIELD™ SYSTEM DESCRIPTION ......................................................................................................... 7

2.2 COMPONENTS .................................................................................................................................. 8

2.2.1 CORRUGATED STAINLESS STEEL TUBING ..................................................................................................8–9

2.2.2 FITTINGS ................................................................................................................................................10 –11

2.2.3 MANIFOLDS ................................................................................................................................................ 12

2.2.4 MODULAR STUB SYSTEM ........................................................................................................................... 12

2.2.5 MOUNTING HARDWARE ............................................................................................................................. 13

2.2.6 PIPE SUPPORT SYSTEM ................................................................................................................................ 13

2.2.7 STRIKE PROTECTION ................................................................................................................................... 14

2.2.8 SHUT-OFF VALVES AND QUICK CONNECTS ............................................................................................... 14

2.2.9 GASTITE® ACCESSORIES.............................................................................................................................. 15

2.2.10 BONDING CLAMPS .................................................................................................................................... 15

2.2.11 SYSTEM IDENTIFICATION........................................................................................................................... 15

2.2.12 REGULATORS ............................................................................................................................................. 16

SECTION 3.0 SYSTEM CONFIGURATION

3.1 CONFIGURATION............................................................................................................................ 18

3.1.1 I NTRODUCTI O N ........................................................................................................................................... 18

3.1.2 SYSTEM REQUIREMENTS ............................................................................................................................ 18

3.1.3 REFERENCE DATA FOR PROPER SYSTEM SIZING .......................................................................................... 18

3.1.4 DETERMINING SYSTEM LAYOUT ........................................................................................................... 19–20

3.1.5 ALLOWABLE PRESSURE DROP ..................................................................................................................... 21

3.1.6 SIZING METHODS .................................................................................................................................. 21–22

3.1.7 MODIFYING AN EXISTING SYSTEM ............................................................................................................. 22

3.2 SIZING PROCEDURES AND EXERCISES .......................................................................................... 22

3.2.1 SIZING EXAMPLES ....................................................................................................................................... 22

3.2.2 EXAMPLE 1: SERIES SYSTEM – 6"WC ................................................................................................... 23–24

3.2.3 EXAMPLE 2: PARALLEL SYSTEM – 6"WC .............................................................................................. 25–26

3.2.4 EXAMPLE 3: PARALLEL SYSTEM – 12-14"WC ....................................................................................... 27–28

3.2.5 EXAMPLE 4: DUAL PRESSURE SYSTEM – 2 PSI TRUNK AND 8"WC APPLIANCE RUNS .......................... 29–30

3.2.6 EXAMPLE 5: MULTIPLE MANIFOLD SYSTEM ............................................................................................... 31

3.2.7 EXAMPLE 6: SERIES SYSTEM – 7"WC - HYBRID .......................................................................................... 32

3.2.8 EXAMPLE 7: PARALLEL SYSTEM – 7"WC – HYBRID .............................................................................. 34–35

3.2.9 EXAMPLE 8: SUMMATION METHOD FOR PARALLEL SYSTEM – 7"WC – HYBRID ................................. 36–37

3.2.10 EXAMPLE 9: SUMMATION METHOD FOR SERIES SYSTEM – 6"WC ....................................................38–40

3.2.11 EXAMPLE 10: COMMERCIAL ELEVATED PRESSURE SERIES SYSTEM – 2 PSI......................................... 41– 42

3.2.12 EXAMPLE 11: COMMERCIAL HYBRID SYSTEM – 7"WC ...................................................................... 43–45

SECTION 4.0 INSTALLATION PRACTICES

4.1 GENERAL PROVISIONS ................................................................................................................... 47

4.2 FIELD FITTING ASSEMBLY PROCEDURE ......................................................................................... 48

4.2.1 XR3 FITTING TO GASTITE YELLOW CSST...............................................................................................48–49

4.2.2 XR3 FITTING TO FLASHSHIELD CSST ..................................................................................................... 50 – 51

4.2.3 XR3 FITTING TO FLASHSHIELD CSST (WITHOUT STRIPPING TOOL) ....................................................... 52–53

4.2.4 OTHER ACCESSORY INSTALLATION ............................................................................................................ 54

4.3 ROUTING ........................................................................................................................................ 54

4.3.1 VERTICAL RUNS .......................................................................................................................................... 55

4.3.2 HORIZONTAL RUNS ..................................................................................................................................... 55

4.3.3 INSTALLATION CLEARANCE HOLES ............................................................................................................ 55

4.3.4 CONCEALED FITTINGS ................................................................................................................................ 56

4.3.5 MODIFICATIONS TO EXISTING SYSTEMS .................................................................................................... 56

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com v

TABLE OF CONTENTS / SEPTEMBER 2017

4.3.6 OUTDOOR ................................................................................................................................................... 57

4.3.7 FIRE RATED CONSTRUCTIONS ..................................................................................................................... 57

4.3.8 ROUTING THROUGH MASONRY MATERIAL ............................................................................................... 57

4.3.9 INSTALLATION WITHIN A CHASE ................................................................................................................ 57

4.3.10 CLEARANCE FROM THE UNDERSIDE OF A ROOF DECK ............................................................................ 58

4.4 STRIKE PROTECTION ...................................................................................................................... 58

4.4.1 STRIKE PLATES ...................................................................................................................................... 58–59

4.4.2 STEEL CONDUIT .......................................................................................................................................... 60

4.5 METER ............................................................................................................................................ 60

4.6 APPLIANCE ..................................................................................................................................... 61

4.6.1 MOVEABLE APPLIANCE .............................................................................................................................. 61

4.6.2 DIRECT CONNECTION – NON-MOVEABLE APPLIANCES ............................................................................. 62

4.6.3 GAS CONVENIENCE OUTLET ...................................................................................................................... 62

4.6.4 SPECIAL APPLICATIONS ........................................................................................................................63–66

4.7 MANIFOLD ..................................................................................................................................... 67

4.8 PRESSURE REGULATOR .................................................................................................................. 68

4.8.1 INTRODUCTION .......................................................................................................................................... 68

4.8.2 SIZING INSTRUCTIONS .......................................................................................................................... 68–69

4.8.3 INSTALL ATION ............................................................................................................................................ 70

4.8.4 PERFORMANCE ........................................................................................................................................... 71

4.8.5 REGULATOR OUTLET PRESSURE ADJUSTMENT ........................................................................................... 71

4.8.6 OVER-PRESSURIZATION PROTECTION ......................................................................................................... 71

4.9 UNDERGROUND INSTALLATIONS .................................................................................................. 72

4.10 ELECTRICAL BONDING OF GASTITE®/FLASHSHIELD™ CSST ....................................................... 73

SECTION 5.0 INSPECTION, REPAIR & REPLACEMENT

5.1 MINIMUM INSPECTION REQUIREMENTS ...................................................................................... 74

5.2 INSTALLATION CHECKLIST DESCRIPTION ...................................................................................... 75

5.3 REPAIR OF DAMAGED CSST .......................................................................................................... 76

5.3.1 DETERMINE DAMAGE ................................................................................................................................. 76

5.3.2 METHOD OF REPAIR.................................................................................................................................... 76

5.3.3 FLASHSHIELD™ JACKET REPAIR .................................................................................................................. 76

SECTION 6.0 PRESSURE/LEAKAGE TESTING

6.1 GENERAL GUIDELINES FOR PRESSURE TESTING ........................................................................... 77

6.2 ELEVATED PRESSURE SYSTEMS ..................................................................................................... 77

6.3 APPLIANCE CONNECTION LEAKAGE CHECK PROCEDURE........................................................... 78

SECTION 7.0 SIZING TABLES & PRESSURE DROP CHARTS

7.1 CSST CAPACITY TABLES—NATURAL GAS ............................................................................... 79–82

7.2 CSST CAPACITY TABLES—NATURAL GAS—ELEVATED PRESSURE ......................................... 83–84

7.3 CSST CAPACITY TABLES—PROPANE GAS ................................................................................ 85–87

7.4 CSST CAPACITY TABLES—PROPANE GAS—ELEVATED PRESSURE ......................................... 87–88

7.5 GASTITE® AND FLASHSHIELD™ CSST PRESSURE DROP TABLES ............................................ 89–90

7.6 IRON PIPE CAPACITY TABLES ........................................................................................................ 93

7.7 IRON PIPE PRESSURE DROP TABLES ......................................................................................... 94-97

7.8 REFERENCE DATA ........................................................................................................................... 98

SECTION 8.0 DEFINITIONS .................................................................. 99–100

SECTION 9.0 DIMENSIONAL & TECHNICAL REFERENCE DATA ............... 101

9.1 GASTITE® SPECIFICATION SHEET ................................................................................................. 101

9.2 FLASHSHIELD™ SPECIFICATION SHEET ............................................................................... 102–103

SECTION 10.0 WARRANTY ....................................................................... 104

FLEXIBLE GAS PIPING TRAINING PROGRAM TEST .................................. 105

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 1: INTRODUCTION / SEPTEMBER 2017

SECTION 1.0 INTRODUCTION

1.1 GENERAL USER WARNINGS

Please note that there are speciﬁc diﬀerences between Gastite® and FlashShield™ throughout this Design and Installation

Guide. Please take note of these diﬀerences as you read through the Guide.

e installation of Gastite® or FlashShield™ Flexible Gas Piping must be performed by a qualiﬁed installer who has

successfully completed the Gastite®/FlashShield™ training program. Certiﬁcation training is available through qualiﬁed

distributors, and at www.gastite.com. e installer must meet all qualiﬁcations and requirements to install gas piping as

required by the local administrative authority. Improper installation or operation of a Gastite® or FlashShield™ Flexible Gas

Piping system may result in ﬁre, explosion or asphyxiation.

is document provides the user with general guidance when designing and installing fuel gas piping using Gastite®

or FlashShield™ Flexible Gas Piping. is guideline must be used in conjunction with all applicable building standards

and codes. In the event that there is a conﬂict between this guideline and local code the more stringent requirement will

take precedence.

e use of fuel gas can be dangerous. Special attention must be given to the proper design, installation, testing and

application of the gas piping system. Sound engineering practices and principles must be exercised, as well as diligent

adherence to the proper installation procedures to ensure the safe operation of the piping system. All installed systems must

pass customary installation inspections by the local building oﬃcial having authority prior to being placed into service.

Only the components provided or speciﬁed by Gastite® as part of the Gastite®/FlashShield™ ﬂexible fuel piping system

are to be used in the installation. Use of components from other ﬂexible gas piping systems other than those speciﬁed

as part of the Gastite®/FlashShield™ system is prohibited and may result in poor system performance and serious bodily

injury or property damage. Where additions, repairs or replacements involve corrugated stainless steel tubing systems from

manufacturers other than Gastite Division, the systems should be joined using standard pipe ﬁttings at the interface.

is manual cannot take into account all situations or locations in which Gastite®/FlashShield™ ﬂexible gas piping will be

installed. Accordingly, installers should also take into account guidance provided by the National Fuel Gas Code, ANSI

Z223.1/NFPA-54, National Standard of Canada, Natural Gas and Propane Installation Code, B149.1, the Uniform

Plumbing Code, the International Code Series, the Federal Manufactured Home Construction and Safety Standards,

24 CFR Part 3280, the Manufactured Housing Construction and Safety Standards, ICC/ANSI 2.0 or the Standard

on Manufactured Housing, NFPA 501. Gastite Division shall have no responsibility for any misinterpretation of the

information contained in this guide or any improper installation or repair work or other deviation from procedures

recommended in this manual, whether pursuant to local building codes or engineering speciﬁcations or otherwise.

Gastite Division makes no representation or warranty, and nothing contained in this manual shall imply that this manual

contains the best or the only approved method for installing corrugated stainless steel piping systems or that this manual’s

contents are appropriate for all circumstances. In the event that there is a conﬂict between this guideline and local code the

more stringent requirement will take precedence. Performance of accessory devices, such as pressure regulators and shut

oﬀ valves should be reconﬁrmed by contacting the accessory device manufacturer and receiving the latest technical data on

sizing, installation and performance.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 3

SECTION 1: INTRODUCTION / SEPTEMBER 2017

1.1 GENERAL USER WARNINGS (CONTINUED)

A Gastite®/FlashShield™ Flexible Gas Piping system oﬀers advantages over other gas delivery systems because of its

corrugated design. In contrast to rigid steel pipe, Gastite®/FlashShield™ does not require intermediate joints in most

installations because the tubing is capable of being installed in one continuous run, reducing not only the total number

of joints, but also the potential for leaks at joints. Gastite®/FlashShield™ ﬂexibility also aﬀords more installation options

because an installer can avoid existing obstacles, and it eliminates the repetitive measuring, cutting, threading and joint

assembly that is common with installation of rigid steel piping systems. Gastite®/FlashShield™’s ﬂexibility oﬀers even

further safety advantages in geographic areas that are prone to seismic activity because the tubing is able to move as the

ground or the structure shifts.

While Gastite®/FlashShield™ provides signiﬁcant advantages over more rigid gas delivery systems, its ﬂexible design may

make it more likely than steel pipe to be punctured by a nail or other sharp objects, or damaged by other extraordinary

forces such as lightning strike, depending on the circumstances.

Properly bonding and grounding the Corrugated Stainless Steel Tubing (CSST) system may reduce the risk of

damage and ﬁre from a lightning strike. Lightning is a highly destructive force. Even a nearby lightning strike that

does not strike a structure directly can cause systems in the structure to become electrically energized. Diﬀerences

in potential between systems may cause the charge to arc between systems. Such arcing can cause damage to CSST,

including holes. Bonding and grounding should reduce the risk of arcing and related damage. e building owner should

conﬁrm that a qualiﬁed contractor has properly bonded the CSST gas system to the grounding electrode system of the

premises. Refer to Section 4.10 Electrical Bonding/Grounding in the Gastite®/FlashShield™ Design & Installation Guide

for details on bonding & grounding CSST.

All owners should consult a lightning safety consultant to determine whether installation of a lightning protection system

would be required to achieve suﬃcient protection for all building components from lightning. Factors to consider include

whether the area is prone to lightning. Areas with high lightning risk include but are not limited to: Arkansas, Florida,

Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maryland, Michigan, Mississippi, Missouri, New Mexico, North

Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas and West Virginia. One currently available

source of information regarding areas more prone to lighting than others is the ﬂash density map provided by the National

Weather Service which can be found at http://www.lightningsafety.noaa.gov/lightning_map.htm. Lightning protection

systems are beyond the scope of this manual and installation guidelines, but are covered by National Fire Protection

Association, NFPA 780, the Standard for the Installation of Lightning Protection Systems, and other standards. e owner

should conﬁrm with the local gas supply utility company that a suitable dielectric union is installed at the service entry of

the structure between underground metallic piping and the gas pipes going into the building as required by code.

Section 250.104b of the National Electric Code (NEC) states that “bonding all piping and metal air ducts within

the premises will provide additional safety.” Gastite recommends that all continuous metallic systems be bonded and

grounded. e owner should conﬁrm with an electrical or construction specialist that each continuous metallic system in a

structure has been bonded and grounded by an electrical professional in accordance with local building codes. is should

include, but is not limited to: metallic chimney liners, metallic appliance vents, metallic ducting and piping, electrical

cables, and structural steel.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 1: INTRODUCTION / SEPTEMBER 2017

1.1 GENERAL USER WARNINGS (CONTINUED)

Direct contact between electrically continuous metallic systems and Gastite® yellow CSST is prohibited. Maintain as

much isolation/separation as reasonably possible when planning and installing gas piping from other continuous metallic

systems. Refer to Section 4.3 Routing, in the Gastite®/FlashShield™ D&I Guide for installation techniques. Consult local

building codes as to required separations for CSST from such continuous metallic systems including metallic chimney

liners, metallic appliance vents, metallic ducting and piping, and insulated or jacketed electrical wiring and cables. See for

instance the Indiana Residential Code, Section 675 IAC 14-4.3-155.5 Section G2411.1; gas pipe bonding.

Local building codes are controlling, however, as a general practice, fuel gas piping, including CSST, should not be

installed within a chase or enclosure that houses a metallic chimney liner or appliance vent that protrudes through the roof.

In the event such an installation of Gastite® yellow CSST is necessary and conforms to local building codes, the metallic

chimney liner or vent must be bonded and grounded by a qualiﬁed electrical professional, and a separation distance, as

speciﬁcally permitted by the applicable local building code between the CSST and the metallic chimney liner or vent,

is required. Physical contact between CSST and the metallic chimney liner and/or vent is prohibited. If this physical

separation cannot be speciﬁcally identiﬁed in the local building code and achieved or any local building code requirements

cannot be met along the entire length, then rerouting of the CSST is required unless such installation is speciﬁcally

permitted by the local building inspector.

Corrosive substances: Steel piping, brass ﬁttings and valves can be corroded by various chemical substances which may be

present on a jobsite or in a structure. Chlorinated compounds can cause pitting and crevice corrosion of stainless steel. Am-

monia and other nitrogenous compounds can cause stress corrosion cracking of brass. FlashShield's jacket system provides

protection from many harmful substances and should remain intact over the lengths of stainless steel tubing to maintain

this protection.

While not exhaustive, the list below provides guidance of substances which should not come into contact with stainless

steel or brass. If there is a question about the suitability of a certain substance in the environment, the user should refer to

the ingredient list or contact the manufacturer.

Chlorinated compounds (chloride, chlorite, chloric, chlorous, chloro, chlorate):

• Some household soaps*

• Masonry cleaner (Muriatic acid)

• Soldering ﬂux

• Bleach

• Pool chemicals

• Ice melt

• Soils, soil water, concrete

Ammonia and ammonium containing compounds:

• Household cleaners

• Fertilizers

Nitrogenous compounds, such as amines:

• Herbicides, pesticides, fungicides, insecticides

* Some household soaps that contractors have used to make leak check solution may contain chlorides which can cause

corrosion to metallic components. Only use leak test solution which are labeled as non-corrosive, for gas piping systems.

Caution: Tube ends are sharp, use care when handling.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 5

SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

1.2 LIMITATIONS OF THE GUIDELINES

is document is intended to aid the professional gas installer in the design, installation and testing of fuel gas piping

systems using corrugated stainless steel tubing (CSST) for residential housing, commercial and industrial buildings.

It would be impossible for this guideline to anticipate and cover every possible variation in building conﬁgurations,

construction styles, appliance loads and code restrictions. erefore, there will be applications that will not be covered by

this guideline. For applications that go beyond the scope of this guideline, the installer should exercise sound engineering

principles and practices and/or contact Gastite for engineering assistance.

e techniques outlined within this guideline are recommended practice for generic applications. ese practices must be

reviewed for compliance with all applicable local fuel gas and building codes. In the event that there is a conﬂict between

this guide and local code, the more stringent requirement will take precedence.

Using components from other ﬂexible gas piping systems other than those speciﬁed as part of the Gastite®/FlashShield™

system is prohibited and may result in poor system performance and serious bodily injury or property damage. Additional

information pertaining to gas piping systems is available from your local gas utility or propane supplier. Please visit the

Gastite web site at www.gastite.com for additional updates and technical bulletins.

1.3 STANDARDS, LISTINGS AND CODES

e Gastite®/FlashShield™ corrugated stainless steel tubing system complies with the following standards, listings and

model codes.

STANDARDS

ANSI LC1/CSA 6.26 – Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSST)

ANSI LC1/CSA 6.26 – 25 PSI Operating Pressure Rating

ANSI LC1/CSA 6.26 Sec. 5.16– Arc Resistant (AR) Jacket Rating (FlashShield™)

ICC-ES PMG LC1027 – Protective Jacketed CSST, A Minimum 36-Coulomb Charge Transfer (FlashShield™)

LISTINGS

• CSA – CSA International – Certiﬁcate No. 2728525

• ICC – International Code Council – Evaluation Report Number PMG-1019, PMG-1155

• IAPMO – International Association of Plumbing and Mechanical Oﬃcials – File Number 3250, Report #0239

CODE COMPLIANCE

• ICC – International Code Series

• Canada – National Gas & Propane Installation Code B149.1

• NFPA – National Fuel Gas Code (NFPA 54)

• UMC – Uniform Mechanical Code

• UPC – Uniform Plumbing Code

While every eﬀort has been made to prepare this document in accordance with all regional model codes in eﬀect at its

printing, Gastite cannot guarantee that the local administrative authority will accept the most recent version of these

codes. It is the ultimate responsibility of the installer to determine suitability and acceptance of any building component

including gas piping. Gastite assumes no responsibility for labor or material for installations made without prior

determination of local code authority acceptance.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

SECTION 2.0 SYSTEM DESCRIPTIONS & COMPONENTS

2.1 SYSTEM DESCRIPTIONS

2.1.1 GASTITE® SYSTEM DESCRIPTION

a) e Gastite® Flexible Gas Piping System has been tested in accordance with the American National Standard for Fuel Gas

Systems Using Corrugated Stainless Steel Tubing, ANSI LC1/CSA 6.26. is standard lists performance requirements

for certiﬁcation of CSST systems for use with all recognized fuel gases, including Natural Gas and Propane.

• System uses corrugated stainless steel tubing (CSST) made of type 304 alloy, ASTM A240.

• An annealing process tempers the steel giving it added ﬂexibility and ease of bending.

• Gastite® Flexible Gas Piping is suitable for use with elevated pressure systems. e ANSI LC1 standard rates CSST for use at

pressures up to 25 PSI.

b) e tubing is connected using XR3 mechanical brass ﬁttings designed speciﬁcally for Gastite® CSST.

• e self-ﬂaring ﬁtting creates a one step, reusable, metal on metal seal.

• Corrosion resistant brass ﬁttings incorporate the Gastite® patented Jacket-Lock™ feature. e polymer jacket is clamped by

the ﬁtting thereby minimizing the risk of corrosives contacting the CSST.

• Gastite® ﬁttings have standard NPT threads and may be used in combination with all approved fuel gas piping materials with

the pipe threads as the interface. System components such as manifolds, tees and stub-outs may be fabricated from other

approved materials to be used with Gastite® ﬂexible gas piping.

c) e polymer jacket is extruded over the stainless steel tubing creating a ﬂexible, protective covering. e jacket is an

added feature of the tubing and does not aﬀect the ﬂaring/sealing process.

• e jacket provides an electrically insulative cover over the CSST gas vessel.

• e jacket is engineered with thermal and UV resistant material making it suitable for outdoor use.

• e polymer jacket creates a smooth outside surface; this surface greatly aids in pulling the tube through tight building

spaces.

• e polymer jacket blend contains ﬂame and smoke additives making it ASTM E84 and CAN/ULC-S102.2 25/50

compliant.

d) e corrugated stainless steel tubing system has a number of essential hardware and design diﬀerences from conventional

gas piping using rigid steel pipe and copper tubing. ese diﬀerences are described as follows:

• In many applications, the tubing is sized for individual gas appliance loads and is, therefore, usually small in diameter. e

tubing may also be installed in a parallel fashion from a central distribution manifold rather than a series layout

commonly used for rigid pipe systems.

• Corrugated Stainless Steel Tubing is pulled through the structure similar in fashion to electrical wiring and therefore

requires diﬀerent handling and installation techniques than rigid pipe.

• Rigid termination of the tube ends is required.

• Flexibility and strike plates protect the CSST allowing it to be run in concealed spaces.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 7

SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

2.1.2 FLASHSHIELD™ SYSTEM DESCRIPTION

a) e FlashShield™ Flexible Gas Piping System has been tested in accordance with the American National Standard for

Fuel Gas Systems Using Corrugated Stainless Steel Tubing, ANSI LC1/CSA 6.26. is standard lists performance

requirements for certiﬁcation of CSST systems for use with all recognized fuel gases, including Natural Gas and

Propane. FlashShield is also tested and listed in accordance with ICC-ES PMG LC1027, listing criteria for protective

jacketed CSST.

• Electrically insulative polymer jacket.

• Metallically shielded CSST.

• Shield is electrically continuous through ﬁtting joints.

• System uses corrugated stainless steel tubing (CSST) made of type 304 alloy, ASTM A240.

• e ANSI LC1 standard rates CSST for use at pressures up to 25 PSI.

• FlashShield is listed to the Arc Resistant (AR) jacket test of ANSI LCI/CSA 6.26 and ICC-ES PMG LC1027

b) e tubing is connected using XR3 mechanical brass ﬁttings designed speciﬁcally for FlashShield CSST.

• e self-ﬂaring ﬁtting creates a one step, reusable, metal on metal seal.

• Fitting creates metal shield-to-ﬁtting electrical connectivity.

• e jacket is clamped by the ﬁtting (Jacket-Lock™) thereby minimizing the risk of corrosives contacting the CSST.

• Fittings have standard NPT threads and may be used in combination with all approved fuel gas piping materials with

the pipe threads as the interface. System components such as manifolds, tees and stubouts may be fabricated from other

approved materials to be used with FlashShield™ ﬂexible gas piping.

c) e multi-layered jacket is fabricated over the stainless steel tubing to provide a ﬂexible, protective covering. e jacket

and metallic shield are added features of the tubing and do not aﬀect the ﬂaring/sealing process.

• Integrated metallic shield between insulative polymer outer jacket and semi-conductive poly inner jacket.

• e jacket is engineered with thermal and UV resistant material making it suitable for outdoor use.

• e jacket provides a smooth outside surface; this surface greatly aids in pulling the tube through tight building spaces.

• e polymer jacket blend contains ﬂame and smoke additives making it ASTM E84 and CAN/ULC-S102.2 25/50

compliant.

d) e corrugated stainless steel tubing system has a number of essential hardware and design diﬀerences from

conventional gas piping using rigid steel pipe and copper tubing. ese diﬀerences are described as follows:

• In many applications, the tubing is sized for individual gas appliance loads and is, therefore, usually small in diameter. e

tubing may also be installed in a parallel fashion from a central distribution manifold rather than a series layout commonly

used for rigid pipe systems.

• Corrugated Stainless Steel Tubing is pulled through the structure similar in fashion to electrical wiring and therefore requires

diﬀerent handling and installation techniques than rigid pipe.

• Rigid termination of the tube ends is required.

• Flexibility and strike plates protect the CSST allowing it to be run in concealed spaces.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

2.2 COMPONENTS

2.2.1 CORRUGATED STAINLESS STEEL TUBING

GASTITE CORRUGATED STAINLESS STEEL TUBING (CSST)

CSST

Part No. Description Pkg. Qty.

S93-6A4-250 3/8" Corrugated Stainless Steel Tubing 250 Ft/Coil

S93-6A4-50* 50 Ft/Box

S93-6A4-125 125 Ft/Coil

S93-6A4-500 500 Ft/Coil

S93-6A4-1000 1000 Ft/Coil

S93-8A4-250 1/2" Corrugated Stainless Steel Tubing 250 Ft/Coil

S93-8A4-25 25 Ft/Coil

S93-8A4-50* 50 Ft/Box

S93-8A4-125 125 Ft/Coil

S93-8A4-500 500 Ft/Coil

S93-8A4-1000 1000 Ft/Coil

S93-8A4-1500 1500 Ft/Coil

S93-11B4-250 3/4" Corrugated Stainless Steel Tubing 250 Ft/Coil

S93-11B4-25 25 Ft/Coil

S93-11B4-50* 50 Ft/Box

S93-11B4-125 125 Ft/Coil

S93-11B4-500 500 Ft/Coil

S93-11B4-1000 1000 Ft/Coil

S93-16A4-150 1" Corrugated Stainless Steel Tubing 150 Ft/Coil

S93-16A4-50* 50 Ft/Box

S93-16A4-75 75 Ft/Coil

S93-16A4-300 300 Ft/Coil

S93-16A4-500 500 Ft/Coil

S93-20A4-150 1-1/4" Corrugated Stainless Steel Tubing 150 Ft/Coil

S93-20A4-50 50 Ft/Coil

S93-20A4-75 75 Ft/Coil

S93-20A4-300 300 Ft/Coil

S93-24A4-150 1-1/2" Corrugated Stainless Steel Tubing 150 Ft/Coil

S93-24A4-50 50 Ft/Coil

S93-24A4-75 75 Ft/Coil

S93-24A4-300 300 Ft/Coil

S93-32A4-150 2" Corrugated Stainless Steel Tubing 150 Ft/Coil

S93-32A4-50 50 Ft/Coil

S93-32A4-75 75 Ft/Coil

S93-32A4-300 300 Ft/Coil

* Packaged in box. Please contact Gastite Customer Service for custom lengths.

APPLICATION

• CSST ﬂexible gas piping supplies natural gas or liqueﬁed petroleum gas to appliances.

MATERIAL / SPECIFICATIONS

• Tubing: ASTM A240 Type 304, Stainless Steel.

• Jacket: Electrically insulative and UV resistant polymer, complying with requirements of ASTM E84 and CAN/ULC-S102.2 25/50.

FEATURES AND BENEFITS

• Flexibility and durability allows for simple routing through complex building structures and designs.

• Pre-marked by the foot for easy measuring and installation.

• Minimum tubing wall thickness of .01" on all sizes is more robust than other brands of CSST.

• Annealed 304 stainless steel makes tubing more ﬂexible than brands not heat-treated.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 9

SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

2.2.1 CORRUGATED STAINLESS STEEL TUBING

FLASHSHIELD™ CORRUGATED STAINLESS STEEL TUBING (CSST)

CSST

Part No. Description Pkg. Qty.

FS-8-250 1/2" FlashShield™ Corrugated Stainless Steel Tubing 250 Ft/Coil

FS-8-25 * 25 Ft/Coil

FS-8-50 * 50 Ft/Box

FS-8-125 125 Ft/Coil

FS-8-500 500 Ft/Coil

FS-8-1000 1000 Ft/Coil

FS-8-1500 1500 Ft/Coil

FS-11-250 3/4" FlashShield™ Corrugated Stainless Steel Tubing 250 Ft/Coil

FS-11-25 * 25 Ft/Coil

FS-11-50 * 50 Ft/Box

FS-11-125 125 Ft/Coil

FS-11-500 500 Ft/Coil

FS-11-1000 1000 Ft/Coil

FS-16-150 1" FlashShield™ Corrugated Stainless Steel Tubing 150 Ft/Coil

FS-16-50* 50 Ft/Box

FS-16-75 75 Ft/Coil

FS-16-300 300 Ft/Coil

FS-16-500 500 Ft/Coil

FS-20-150 1-1/4" FlashShield™ Corrugated Stainless Steel Tubing 150 Ft/Coil

FS-20-50 50 Ft/Coil

FS-20-75 75 Ft/Coil

FS-20-300 300 Ft/Coil

FS-24-150 1-1/2" FlashShield™ Corrugated Stainless Steel Tubing 150 Ft/Coil

FS-24-50 50 Ft/Coil

FS-24-75 75 Ft/Coil

FS-32-150 2" FlashShield™ Corrugated Stainless Steel Tubing 150 Ft/Coil

FS-32-50 50 Ft/Coil

FS-32-75 75 Ft/Coil

*Packaged in box. Please contact Gastite Customer Service for custom lengths.

APPLICATION

• CSST ﬂexible gas piping supplies natural gas or liqueﬁed petroleum gas to appliances.

MATERIAL / SPECIFICATIONS

• Tubing: ASTM A240 Type 304 Stainless Steel.

• Jacket: Electrically insulative and UV resistant polymer, complying with requirements of ASTM E84 and CAN/ULC-S102.2 25/50.

• Protective jacket system, complies with ICC-ES PMG LC1027

FEATURES AND BENEFITS

• Electrically insulative polymer jacket.

• Metallically shielded CSST.

• Protective shield is electrically continuous through ﬁtting joints.

• Metal shield layer dissipates and conducts electricity.

• No manufacturer required bonding.

• No special routing restrictions.

• Flexibility means quick and easy installations. FlashShield™ installs 30-70% faster than traditional piping methods.

• Pre-marked by the foot, there’s no measuring, rigid pipe cutting or threading. is means less waste and fewer ﬁttings.

• 75% fewer ﬁttings in the average installation means a safer system, less leak potential and reduced callbacks.

• FlashShield™ CSST is lightweight—250 feet of 1/2" CSST weighs approx. 50 lbs and can be easily transported and handled on the job.

• Call Customer Service for custom lengths of tubing and job-speciﬁc accessories.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

2.2.2 FITTINGS

XR2/XR3 SERIES STRAIGHT FITTING (ADAPTER/NUT/BUSHING)

Straight Fitting

Part No. Description Pkg. Qty.

XR2FTG-6-24 3/8" Straight Fitting – 1/2" NPT 24/Box

XR3FTG-8-24 1/2" Straight Fitting – 1/2" NPT 24/Box

XR3FTG-11-24 3/4" Straight Fitting – 3/4" NPT 24/Box

XR3FTG-16-12 1" Straight Fitting – 1" NPT 12/Box

XR3FTG-20-6 1-1/4" Straight Fitting – 1-1/4" NPT 6/Box

XR3FTG-24-4 1-1/2" Straight Fitting – 1-1/2" NPT 4/Box

XR3FTG-32-4 2" Straight Fitting – 2" NPT 4/Box

XR3 SERIES STRAIGHT FEMALE FITTING (ADAPTER/NUT/BUSHING)

Straight Female

Fitting

Part No. Description Pkg. Qty.

XR3FTGFM-8-24 1/2" Straight Fitting – 1/2" Female NPT 24/Box

XR3FTGFM-11-8-24 3/4" Straight Fitting – 1/2" Female NPT 24/Box

XR3FTGFM-11-24 3/4" Straight Fitting – 3/4" Female NPT 24/Box

XR3 SERIES REDUCING FITTING (ADAPTER/NUT/BUSHING)

Reducing Fitting

Part No. Description Pkg. Qty.

XR3REDFTG-11-8-24 3/4" Straight Reducing Fitting – 1/2" NPT 24/Box

XR3REDFTG-16-12-12 1" Straight Reducing Fitting – 3/4" NPT 12/Box

XR3 SERIES TEE FITTING

Tee Fitting

Tee

Run

Part No. Description Pkg. Qty.

XR3T-8-12 1/2" Run x 1/2" Run x 1/2" Tee – Tee Fitting 12/Box

XR3T-11-12 3/4" Run x 3/4" Run x 3/4" Tee – Tee Fitting 12/Box

XR3T-16-6 1" Run x 1" Run x 1" Tee – Tee Fitting 6/Box

XR3T-11-8-8-6 3/4" Run x 1/2" Run x 1/2" Tee – Tee Fitting 6/Box

XR3T-11-11-8-6 3/4" Run x 3/4" Run x 1/2" Tee – Tee Fitting 6/Box

XR3T-16-11-8-6 1" Run x 3/4" Run x 1/2" Tee – Tee Fitting 6/Box

XR3T-16-11-11-6 1" Run x 3/4" Run x 3/4" Tee – Tee Fitting 6/Box

XR3T-16-16-8-6 1" Run x 1" Run x 1/2" Tee – Tee Fitting 6/Box

XR3T-16-16-11-6 1" Run x 1" Run x 3/4" Tee – Tee Fitting 6/Box

XR2/XR3 SERIES COUPLING FITTINGS

Coupling

Part No. Description Pkg. Qty.

XR2CPL-6-12 3/8" Coupling 12/Box

XR3CPL-8-12 1/2" Coupling 12/Box

XR3CPL-11-12 3/4" Coupling 12/Box

XR3CPL-16-6 1" Coupling 6/Box

XR3CPL-20-6 1-1/4" Coupling 6/Box

XR3CPL-24-4 1-1/2" Coupling 4/Box

XR3CPL-32-4 2" Coupling 4/Box

Note: Fitting Components available. Please contact Customer Service for pricing.

APPLICATION

• XR3 Fittings are used on both FlashShield™ black CSST and Gastite® yellow CSST.

• Straight Fittings connect the ﬂexible gas tubing to gas supply, distribution manifolds or gas appliances.

• Tee Fittings create a branch line on tubing runs.

• Couplings allow for the splicing and additions to the ﬂexible gas tubing.

MATERIAL / SPECIFICATIONS

• Fitting adapter, bushings and nut – Brass.

FEATURES AND BENEFITS

• Tool-less ﬂare design; no special tools are required.

• Metal-to-metal seal, with no split rings, O-rings or gaskets.

• Self-guiding assembly to ensure a perfectly even ﬂare.

• Exclusive, patented Jacket-Lock™ ﬁtting eliminates exposed stainless steel beyond the nut.

• All components are fully reusable.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 11

SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

2.2.2 FITTINGS

XR2/XR3 SERIES TERMINATION FITTING (FLANGE/ADAPTER/NUT/BUSHING)

Termination Fitting

With Square Flange

Part No. Description Pkg. Qty.

XR2TRM-6-12 3/8" Term. Fitting-Square Flange – 1/2" NPT 12/Box

XR3TRM-8-12 1/2" Term. Fitting-Square Flange – 1/2" NPT 12/Box

XR3TRM-11-12 3/4" Term. Fitting-Square Flange – 3/4" NPT 12/Box

XR3TRM-16-6 1" Term. Fitting-Square Flange – 1" NPT 6/Box

XR3TRM-20-6 1-1/4" Term. Fitting-Square Flange – 1-1/4" NPT 6/Box

XR3TRM-24-4 1-1/2" Term. Fitting-Square Flange – 1-1/2" NPT 4/Box

XR3TRM-32-4 2" Term. Fitting-Square Flange - 2" NPT 4/Box

XR2TRM-6-12CB 3/8" Term. Fitting-Cast Bronze Flange – 1/2" NPT 12/Box

XR3TRM-8-CB-12 1/2" Term. Fitting-Cast Bronze Flange – 1/2" NPT 12/Box

XR3TRM-11-CB-12 3/4" Term. Fitting-Cast Bronze Flange – 3/4" NPT 12/Box

XR3TRM-16-CB-6 1" Term. Fitting-Cast Bronze Flange – 1" NPT 6/Box

XR3TRM-20-CB-6 1-1/4" Term. Fitting-Cast Bronze Flange – 1-1/4" NPT 6/Box

XR3TRM-24-CB-4 1-1/2" Term. Fitting-Cast Bronze Flange – 1-1/2" NPT 4/Box

XR2/XR3 SERIES TERMINATION FITTING WITH NO FLANGE (ADAPTER/NUT/BUSHING)

Termination Fitting

No Flange

Part No. Description Pkg. Qty.

XR2TRM-6-NF-12 3/8" Term. Fitting – 1/2" NPT with no Flange 12/Box

XR3TRM-8-NF-12 1/2" Term. Fitting – 1/2" NPT with no Flange 12/Box

XR3TRM-11-NF-12 3/4" Term. Fitting – 3/4" NPT with no Flange 12/Box

XR3TRM-16-NF-6 1" Term. Fitting – 1" NPT with no Flange 6/Box

XR3TRM-20-NF-6 1-1/4" Term. Fitting – 1-1/4" NPT with no Flange 6/Box

XR3TRM-24-NF-4 1-1/2" Term. Fitting – 1-1/2" NPT with no Flange 4/Box

XR3TRM-32-NF-4 2" Term. Fitting – 2" NPT with no Flange 4/Box

XR3 SERIES TERMINATION BRACKET FITTING (BRACKET/ADAPTER/NUT/BUSHING)

Term Bracket Fitting

Part No. Description Pkg. Qty.

XR3TRMBKT-8-12 1/2" Term. Bracket Fitting – 1/2" NPT 12/Box

XR3TRMBKT-11-12 3/4" Term. Bracket Fitting – 3/4" NPT 12/Box

XR3TRMBKT-16-6 1" Term. Bracket Fitting – 1" NPT 6/Box

XR3TRMBKT-20-6 1-1/4" Term Bracket Fitting – 1-1/4" NPT 6/Box

XR3TRMBKT-24-4 1-1/2" Term. Bracket Fitting – 1-1/2" NPT 4/Box

XR3TRMBKT-32-4 2" Term. Bracket Fitting – 2" NPT 4/Box

APPLICATION

• XR3 Fittings are used on both FlashShield™ black CSST and Gastite® yellow CSST.

• Straight Fittings connect the ﬂexible gas tubing to gas supply, distribution manifolds or gas appliances.

• Tee Fittings create a branch line on tubing runs.

• Couplings allow for the splicing and additions to the ﬂexible gas tubing.

MATERIAL / SPECIFICATIONS

• • Fitting adapter, bushings and nut—Brass.

• • Square Flange—Steel with zinc coating.

•

FEATURES AND BENEFITS

• Tool-less ﬂare design; no special tools are required.

• Metal-to-metal seal, with no split rings, O-rings or gaskets.

• Self-guiding assembly to ensure a perfectly even ﬂare.

• Exclusive, patented Jacket-Lock™ ﬁtting eliminates exposed stainless steel beyond the nut.

• All components are fully reusable.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

2.2.3 MANIFOLDS

MULTI-PORT MANIFOLDS

Cast Manifolds

Part No. Description Pkg. Qty.

3-PORTMAN Cast 3 port – 3/4"F x 3 @ 1/2"F x 1/2"F 1 Ea.

3-PORTMAN-1 Cast 3 port – 1/2" x 3 @ 1/2"F x 1/2"F 1 Ea.

4-PORTMAN-10 Cast 4 port – 3/4"F x 4 @ 1/2"F x 1/2"F 10/Box

5-PORTMAN Cast 5 port – 3/4"F x 1 @ 3/4"F x 4 @ 1/2"F x 1/2"F 1 Ea.

5-PORTMAN-1 Cast 5 port – 1"F x 1 @ 3/4"F x 4 @ 1/2"F x 3/4"F 1 Ea.

5-PORTMAN-2 Cast 5 port – 1-1/4"F x 5 @ 3/4"F x 1"F 1 Ea.

5-PORTMAN-3 Cast 5 port – 1-1/4"F x 5 @ 1/2"F x 1"F 1 Ea.

4-PORTMAN-2 Cast 4 port – 1-1/2"F x 4 @ 3/4"F x 1-1/2"F 1 Ea.

4-PORTMAN-3 Cast 4 port – 2"F x 4 @ 1"F x 1-1/2"F 1 Ea.

111596-08 Coated Steel 4 Port – 3/4"F x 4 @ 1/2"F x 3/4"M 1 Ea.

APPLICATION

• Provides central distribution point for individual runs to each appliance.

MATERIAL/SPECIFICATIONS

• Coated 4 Port – Welded IPS Schedule 40 pipe.

• Cast 3, 4, and 5 Port – ASTM A47 32510 Malleable Iron.

2.2.4 MODULAR STUB SYSTEM

MODULAR STUB SYSTEM

Angle Stub-Out

Deck Stub-Out

Double Stub-Out

Straight Stub-Outs

Optional Brackets

XR3-Appliance Stub-Outs

Part No. Description Pkg. Qty.

XR3-APSTUB-8-10 1/2"M x 1/2"M x 1-1/2" Stub length with 1/2" female ﬁtting 10/Box

XR3-L-APSTUB-8-10 1/2"M x 1/2"M x 2-1/4" Stub length with 1/2" female ﬁtting 10/Box

XR3-APSTUB-11-10 1/2"M x 1/2"M x 1-1/2" Stub length with 3/4" female ﬁtting 10/Box

XR3-L-APSTUB-11-10 1/2"M x 1/2"M x 2-1/4" Stub length with 3/4" female ﬁtting 10/Box

XR3-APSTUB-11-11-10 3/4"M x 3/4"M x 1-1/2" Stub length with 3/4" female ﬁtting 10/Box

XR3-L-APSTB-11-11-10 3/4"M x 3/4"M x 2-1/4" Stub length with 3/4" female ﬁtting 10/Box

1/2X6STUB-10 1/2"M x 6"L Straight Stub 10/Box

1/2X12STUB-10 1/2"M x 12"L Straight Stub 10/Box

3/4X6STUB-10 3/4"M x 6"L Straight Stub 10/Box

3/4X12STUB-10 3/4"M x 12"L Straight Stub 10/Box

1X6STUB-10 1"M x 6"L Straight Stub 10/Box

1X12STUB-10 1"M x 12"L Straight Stub 10/Box

1-1/4X6STUB-10 1-1/4"M x 6"L Straight Stub 10/Box

1-1/4X12STUB-10 1-1/4"M x 12"L Straight Stub 10/Box

1-1/2X6STUB-10 1-1/2"M x 6"L Straight Stub 10/Box

1-1/2X12STUB-10 1-1/2"M x 12"L Straight Stub 10/Box

2X6STUB-10 2"M x 6"L Straight Stub 10/Box

2X12STUB-10 2"M x 12"L Straight Stub 10/Box

ANGLE-STUB-01-10 1/2"M x 4-1/2"L x 72.5° Angle Stub 10/Box

STUB-BRACE Stub Bracket (optional) – Fits All 1 Ea.

DBLSTUB-1-10 3/4" Inlet x 1/2" & 3/4" Outlet 10/Box

DECKSTUB-1/2x3-10 1/2" x 3" Bracket Stub-Out 10/Box

APPLICATION

• All Stubs create a ﬁxed point “stub-out” on a wall or ﬂoor surface for meter and appliance attachment.

• Angle Stub-Out mounting plate provided at a 72-1/2° angle to facilitate mounting to angled side of most ﬁreplace

inserts.

MATERIAL / SPECIFICATIONS

• Schedule 40 steel pipe complying with material standard ASTM A-53.

• Exterior plating—Black oxide coating after all threading, forming and welding.

FEATURES AND BENEFITS

• Reduces the number of joints in the system where contractors typically fabricate “stub-outs” from rigid pipe nipples,

elbows and couplings.

• Provides a ﬁxed-point termination for installations where the appliances are not yet installed.

• Creates a more polished look to the overall installation.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 13

SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

2.2.5 MOUNTING HARDWARE

MOUNTING HARDWARE

Manifold Bracket

Gas Load Center

XR3-Outlet Box

Termination Bracket

Part No. Description Pkg. Qty.

LBRACE-1-20 Term. Fitting Mounting Kit – Fits 3/8" - 1" CSST 20/Box

MBRACE-1-10 Manifold Mounting Kit – See below for mounting options 10/Box

MBRACE-3-10 Manifold Mounting Kit – See below for mounting options 10/Box

GLC1 Gas Load Center Kit – 14-1/2" x 24" x 3-1/2" 1 Ea.

MSTRAPS-6-250 Metal Tubing Strap – Fits 3/8" CSST 250/Box

MSTRAPS-8-250 Metal Tubing Strap – Fits 1/2" CSST 250/Box

MSTRAPS-11-150 Metal Tubing Strap – Fits 3/4" CSST 150/Box

MSTRAPS-16-100 Metal Tubing Strap – Fits 1" CSST 100/Box

MSTRAPS-20-50 Metal Tubing Strap – Fits 1-1/4" CSST 50/Box

MSTRAPS-24-50 Metal Tubing Strap – Fits 1-1/2" CSST 50/Box

MSTRAPS-32-25 Metal Tubing Strap – Fits 2" CSST 25/Box

XR3OUTLETBOX-8 Recessed gas outlet box kit with 1/2" XR3 Fitting 1 Kit

XR3OUTLETBOX-11 Recessed gas outlet box kit with 3/4" XR3 Fitting 1 Kit

XR3OUTLETBOX-FR8 Firestop gas outlet box kit with 1/2" XR3 Fitting 1 Kit

XR3OUTLETBOX-FR11 Firestop gas outlet box kit with 3/4" XR3 Fitting 1 Kit

APPLICATION

• Termination Bracket provides mounting surface for termination ﬁtting assembly.

• Manifold Bracket provides mounting platform for manifolds, supplied with adhesive port labeling.

• Gas Load Center creates a recessed cabinet for a more polished look to manifold assembly.

• XR3OUTLETBOX creates a secure recessed termination point for connection to moveable appliances.

MATERIAL / SPECIFICATIONS

• Termination Fitting—16 gauge galvanized sheet metal.

• MBRACE-1 Mounting Kit made of 16 gauge galvanized sheet metal.

- Fits 3-PORTMAN, 4-PORTMAN, 5-PORTMAN and 111596-08.

• MBRACE-3 Mounting Kit made of 14 gauge galvanized sheet metal.

- Fits 5-PORTMAN-1, 5-PORTMAN-2, 5-PORTMAN-3 and 4-PORTMAN-2.

• 4-PORTMAN-3 requires installer supplied mounting brackets.

• Gas Load Center—20 gauge steel with a white, polyester powder coat ﬁnish.

• Metal Tubing Straps—22, 20 or 18 gauge sheet metal, depending on size.

2.2.6 PIPE SUPPORT SYSTEM

PIPE SUPPORT SYSTEM

RB2

RB0

RB1

Part No. Description Pkg. Qty.

RB0-10-4 Rubber Support Block (10"L x 4"H) 1 Ea.

RB1-10-5 Rubber Support Block w/ 7/8" Galv Steel Channel (10"L x 5"H) 1 Ea.

RB1-29-5 Rubber Support Block w/ 7/8" Galv Steel Channel (29"L x 5"H) 1 Ea.

RB2-10-12 Rubber Support Block w/Adj height 7/8" Galv Steel Channel (10"L x 5"–12"H) 1 Ea.

APPLICATION

• Eﬀectively anchors and supports lightweight Gastite CSST, as well as other fuel gas piping materials to any rooﬁng

membrane.

MATERIAL / SPECIFICATIONS

• Made of 100% recycled material, UV resistant and waterproof.

• Will not damage expensive roof membranes.

• Installs on any roof with or without standard roof adhesives.

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800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

2.2.7 STRIKE PROTECTION

PROTECTION DEVICES – STRIKER PLATES & SILICONE TAPE

Striker Plates

Part No. Description Pkg. Qty.

TFM204-100 Quarter Striker Plate – 3" x 2" 100/Box

TFM201-50 Half Striker Plate – 3" x 7" 50/Box

TFM203-50 ree-Quarter Striker Plate – 3" x 8" 50/Box

TFM205-25 Full Striker Plate – 3" x 12" 25/Box

TFM210-10 6" x 17" Striker Plate 10/Box

TFM211-25 Full (Drop-In) Striker Plate – 1/2" & 3/4" CSST 25/Box

TFM212-25 Full (Drop-In) Striker Plate – 1" & 1 1/4" CSST 25/Box

SIL-TAPE Self Bonding Yellow Silicone Tape – 1" x .015" x 12 yd / roll 1 Ea.

SIL-TAPE-B Self Bonding Black Silicone Tape – 1" x .015" x 12 yd / roll 1 Ea.

Steel Conduit Coil &

Cut Length

Part No. Description Pkg. Qty.

FLOPPY12 3/4" Coil steel conduit – Fits 3/8" CSST 50 Ft/Coil

FLOPPY16 1" Coil steel conduit – Fits 1/2" CSST 50 Ft/Coil

FLOPPY20 1-1/4" Coil steel conduit – Fits 3/4" CSST 25 Ft/Coil

FLOPPY24 1-1/2" Coil steel conduit – Fits 1" CSST 25 Ft/Coil

FLOPPY28 1-3/4" Coil steel conduit – Fits 1-1/4" CSST 25 Ft/Coil

FLOPPY36 2-1/4" Coil steel conduit – Fits 1-1/2" CSST 25 Ft/Coil

FLOPPY48 3" Coil steel conduit – Fits 2" CSST 25 Ft/Coil

Part No. Description Pkg. Qty.

LFLOPPY-12-50 3/4" – Cut to 1 foot length – Fits 3/8" CSST 50/Box

LFLOPPY-16-50 1" – Cut to 1 foot length – Fits 1/2" CSST 50/Box

LFLOPPY-20-25 1-1/4" – Cut to 1 foot length – Fits 3/4" CSST 25/Box

LFLOPPY-24-25 1-1/2" – Cut to 1 foot length – Fits 1" CSST 25/Box

LFLOPPY-28-25 1-3/4" – Cut to 1 foot length – Fits 1-1/4" CSST 25/Box

LFLOPPY 36-25 2-1/4" – Cut to 1 foot length – Fits 1-1/2" CSST 25/Box

LFLOPPY-48-25 3" – Cut to 1 foot length – Fits 2" CSST 25/Box

APPLICATION

• Striker plates used for protection where ﬂexible gas piping passes through structural members and is restricted from moving to avoid nails, screws and

other potential puncture threats.

• Steel conduit is used to provide additional protection where striker plates cannot be easily installed.

MATERIAL / SPECIFICATIONS

• Striker Plates—16 gauge AISI1050 Carbon Steel Hardened to Rc 45.

• Steel Conduit—Strip wound interlocking steel.

2.2.8 SHUT-OFF VALVES AND QUICK CONNECTS

SHUT-OFF VALVES

Ball Valve 90˚ Ball Valve

Stainless Steel & PVC

Quick Connect Boxes

Part No. Description Pkg. Qty.

T100-1/2-20 1/2" Ball Valve rated to 125 PSI 20/Box

T100-3/4-10 3/4" Ball Valve rated to 125 PSI 10/Box

T100-1-1/4-5 1-1/4" Ball Valve rated to 125 PSI 5/Box

T90-1/2-10 1/2" 90 Degree Shut-Oﬀ Valve 10/Box

T90-3/4-10 3/4" 90 Degree Shut-Oﬀ Valve 10/Box

QUICK CONNECT & ACCESSORIES

Part No. Description Pkg. Qty.

T103029 1/2" Quick Connect Valve 1 Ea.

OUTFLEX-3/8 Outdoor Flex Connector—3/8" NPT x 12' 1 Ea.

QCBOXPW 1/2" Quick Connect Box White PVC—Surface Mounted 1 Ea.

QCBOXPG 1/2" Quick Connect Box Gray PVC—Surface Mounted 1 Ea.

QCBOXSS 1/2" Quick Connect PVC Box, Stainless Steel—Recess Mounted 1 Ea.

APPLICATION

• Ball Valves are used to control gas ﬂow to appliances and pounds-to-inches regulator.

• Quick Connect valve and accessories provide a safe and easy “quick-connect” for barbecue grills, space heaters

and decorative lighting.

MATERIAL / SPECIFICATIONS

• Ball Valve—ANSI/ASME B16.33.

• Quick Connect and Accessories—ANSI Z21.15, CAN 9.1,9.2, 6.9 and AGA/CGA 7-90/CR94-001.

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SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

2.2.9 GASTITE ACCESSORIES

TUBING CUTTERS AND ACCESSORIES

Part No. Description Pkg. Qty.

GTCUTTER-SM Yellow cutter with ﬂat rollers – 3/8"–1" Gastite® and FlashShield™ 1 Ea.

GTCUTTER-SM2 Black cutter with ﬂat rollers – 3/8"–1" FlashShield™ 1 Ea.

GTCUTTER-LG Yellow cutter with ﬂat rollers – Up to 2" Gastite® and 1-1/2" FlashShield™ 1 Ea.

GTCUTTER-LG2 Black cutter with ﬂat rollers – Up to 2" FlashShield™ 1 Ea.

GTBLADE-SM-5 Replacement blade for GTCUTTER-SM and GTCUTTER-SM2 (19mm) 5 Ea.

GTBLADE-LG2-5 Replacement blade for GTCUTTER-LG2 and GTCUTTER-LG (30mm) 5 Ea.

APPLICATION

• Tubing Cutters, ﬁtted with cutting wheel designed to cut stainless steel, create clean cuts for optimal ﬂaring of tubing.

MATERIAL / SPECIFICATIONS

• Aluminum alloy body.

JACKET STRIPPING TOOL

Jacket Stripping Tool

Part No. Description Pkg. Qty.

STRP3-8-24 1/2" Jacket Stripper 24/Pkg.

STRP3-11-24 3/4" Jacket Stripper 24/Pkg.

STRP3-16-24 1" Jacket Stripper 24/Pkg.

STRP3-20-24 1-1/4" Jacket Stripper 24/Pkg.

STRP3-24-12 1-1/2" Jacket Stripper 12/Pkg.

STRP3-32-12 2" Jacket Stripper 12/Pkg.

2.2.10 BONDING CLAMPS

BONDING CLAMPS

Bonding Clamps

Part No. Description Pkg. Qty.

CWP1JSH Bonding Clamp for 3/8" and 1/2" Fittings 1 Ea.

CWP2JSH Bonding Clamp for 3/4", 1" and 1-1/4" Fittings 1 Ea.

CWP3JSH Bonding Clamp for 1-1/2" and 2" Fittings 1 Ea.

2.2.11 SYSTEM IDENTIFICATION

SYSTEM IDENTIFICATION

Adhesive Label

Metal Tag

Part No. Description Pkg. Qty.

EPAL-1-100 Adhesive Labels for elevated pressure identiﬁcation 100/Roll

EPMT-1-100 Metal Tags for Uniform Plumbing Code compliance 100/Pkg.

Tubing Cutters

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SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017

2.2.12 REGULATORS

MAXITROL REGULATORS

Part No. Description Pkg. Qty.

T325-3-44 250 MBTU of NG @ 8"WC with 1/2" NPT inlet/outlet 1 Ea.

T325-3-44P 355 MBTU of LP @ 11"WC with 1/2" NPT inlet/outlet 1 Ea.

T325-5-2 425 MBTU of NG @ 8"WC with 1/2" NPT inlet/outlet 1 Ea.

T325-5-44 600 MBTU of NG @ 8"WC with 3/4" NPT inlet/outlet 1 Ea.

T325-5-44P 918 MBTU of LP @ 11"WC with 3/4" NPT inlet/outlet 1 Ea.

T325-5-3 600 MBTU of NG @ 8"WC with 1" NPT inlet/outlet 1 Ea.

T325-5-3P 550 MBTU of LP @ 11"WC with 1" NPT inlet/outlet 1 Ea.

T325-7AL-NG01 1,250 MBTU of NG @ 8"WC with 1-1/4" NPT inlet/outlet 1 Ea.

T325-3L48 200 MBTU of NG @ 8"WC with 1/2" NPT inlet/outlet & OPD 1 Ea.

T325-5AL600 425 MBTU of NG @ 8"WC with 3/4" NPT inlet/outlet & OPD 1 Ea.

T325-7L-210D* 1,250 MBTU of NG @ 8"WC with 1-1/4" NPT inlet/outlet & OPD 1 Ea.

*Vent limiters not available for - 7 regulator.

OARA REGULATORS

Part No. Description Pkg. Qty.

REG8-300 250 MBTU of NG @ 8"WC with 1/2" NPT inlet/outlet 1 Ea.

REG11-300 355 MBTU of LP @ 11"WC with 1/2" NPT inlet/outlet 1 Ea.

REG8-600 550 MBTU of NG @ 8"WC with 3/4" NPT inlet/outlet 1 Ea.

REG11-600 810 MBTU of LP @ 11"WC with 3/4" NPT inlet/outlet 1 Ea.

PIETRO FIORENTINI REGULATORS

Part No. Description Pkg. Qty.

30051-NG 635 MBTU of NG @ 8"WC with 1/2" NPT inlet/outlet 1 Ea.

30052-NG 848 MBTU of NG @ 8"WC with 3/4" NPT inlet/outlet 1 Ea.

30053-NG 1,059 MBTU of NG @ 8"WC with 1" NPT inlet/outlet 1 Ea.

30153-NG 5,297 MBTU of NG @ 8"WC with 1-1/4" NPT inlet/outlet 1 Ea.

30052-LP 1,285 MBTU of LP @ 11"WC with 3/4" NPT inlet/outlet 1 Ea.

VENT PROTECTORS

VP3 Maxitrol, Outdoor Vent Protector, ﬁts 1/8" NPT vent oriﬁce

(ﬁts -3 and 300 series) 1 Ea.

VP5 Maxitrol, Outdoor Vent Protector, ﬁts 3/8" NPT vent oriﬁce

(ﬁts -5 and 600 series) 1 Ea.

VP14 Pietro Fiorintini, Outdoor Vent Protector, ﬁts 1/4" NPT vent oriﬁce

(ﬁts 30051, 52, 53) 1 Ea.

VP12 Pietro Fiorintini, Outdoor Vent Protector, ﬁts 1/2" NPT vent oriﬁce

(ﬁts 30153 and -7) 1 Ea.

APPLICATION

• For use in elevated pressure systems (in excess of 1/2 PSI) to reduce pressure to standard appliance use levels.

• Outdoor vent protector is used when vent-limiting oriﬁce is removed for outdoor installation of regulator.

MATERIAL / SPECIFICATIONS

• 2 PSI inlet pressure line models available in 8"WC and 11"WC outlet pressures.

• 5 PSI inlet pressure (OPD) models available in 8"WC (ﬁeld adjustment to 11"WC) outlet pressures.

Pietro Fiorentini

Regulators

OARA Regulators

Maxitrol Regulators

with OPD

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GASTITE®/FLASHSHIELD™ CSST WORKSHEET

PROJECT / LOCATION: DRAWN BY:

CONTACT PHONE: DATE:

DESCRIPTION

SYSTEM DESCRIPTION

SYSTEM DATA AND REQUIREMENTS

NAME OF

RUN

SUPPLY

PRESSURE

(LBS. OR IN.)

LENGTH OF

RUN (FT.)

LOAD OF RUN

(CFH)

PRESS. DROP

(LBS. OR IN.)

TUBE DIAMETER

(SIZE OR IN.)

DELIVERY

PRESS.

(LBS. OR IN.)

COMMENTS

To be copied: For Planning and Design of the Gastite®/FlashShield™ Piping System. Visit www.gastite.com for a downloadable version of this worksheet.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

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SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SECTION 3.0 SYSTEM CONFIGURATION

3.1 CONFIGURATION

3.1.1 INTRODUCTION

is section is intended to help in the design and sizing of both Gastite® and FlashShield™ CSST fuel gas piping systems.

e form -printed on the previous page is to aid in keeping track of the system requirements as well as organizing the

system conﬁguration and sizing numbers. Refer to the Gastite web site (www.gastite.com) for additional sizing tools.

e Gastite®/FlashShield™ gas piping system is required to be tested, listed, and installed in accordance with the Standard

For Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing, ANSI LC1. is standard, among other things,

requires the manufacturer to provide installation instructions including the necessary pipe sizing tables and methods of

sizing.

3.1.2 SYSTEM REQUIREMENTS

• Determine the local piping restrictions prior to installing the ﬂexible gas piping. Conﬁrm that the local administrative

authority has accepted the use of ﬂexible gas piping. Corrugated Stainless Steel Tubing has been accepted by all major code

bodies, but local or state adoption of these codes often lags behind. Check with the local administrative authority or an

authorized Gastite®/FlashShield distributor for approval in your area.

• Determine metered (supply) pressure. A gauge can be used to measure the supply pressure or the utility will provide a supply

pressure rating.

• Determine appliance demand. Every appliance will have a manufacture’s nameplate containing BTUH or CFH requirements

as well as minimum and maximum operating pressures.

• Refer to building plans or prepare a sketch showing the location of each appliance. When preparing this sketch keep in mind

the safest, easiest, and shortest distance locations to run the piping. Label the pipe segments and the corresponding lengths.

Take note of ﬁttings needed e.g. tees, manifolds, reducers.

3.1.3 REFERENCE DATA FOR PROPER SYSTEM SIZING

• Determine the total capacity needed for all appliances. CFH or BTUH equivalents for natural gas or propane can be

obtained from the local gas utility or propane supplier. e capacity tables within this guide or other approved CSST tables

should be used to determine pipe sizing for both Gastite® and FlashShield needed to meet BTUH input load requirements.

TABLE 3-1 REFERENCE DATA FOR PROPER SYSTEM SIZING

PRESSURE CONVERSION FACTORS FUEL GAS INFORMATION

1/4 PSI = 6.921"WC = (approx. 7"WC) Natural Gas Propane

1/2 PSI = 13.842"WC = (approx. 14"WC) BTU per Cubic Foot = 1000 2516

1 PSI = 27.684"WC = (approx. 28"WC) Speciﬁc Gravity = 0.6 1.52

2 PSI = 55.368"WC = (approx. 56"WC) Note: “Pressure Drop Curves for Gastite® CSST” are expressed in terms of Cubic

Feet per Hour (CFH). To determine the CFH for Natural Gas, divide the BTU

load by 1000. To determine the CFH for Propane, divide the BTU load by 2516.

5 PSI = 138.42"WC = (approx. 140"WC)

Refer to Section 7.0 for gases with a speciﬁc gravity other than 0.60.

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SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.1.4 DETERMINING SYSTEM LAYOUT

A) SERIES SYSTEMS

A series layout (Fig 3-1) is the most common arrangement

utilized for rigid pipe systems for low pressure. ese usually

consist of a main run (header) with tees branching oﬀ to each

appliance. In a traditional series system, the service pressure

down stream of the meter is typically less than 1/2 PSI.

B) PARALLEL SYSTEMS

In a parallel system (Fig. 3-2) a main run from the meter

supplies a central distribution manifold. e appliances are

serviced by individual runs from the manifold. e manifold

station is best located close to the greatest load, typically the

boiler or furnace.

C) DUAL PRESSURE SYSTEM

A dual pressure system (Fig. 3-3, 3-4) incorporates two

operating pressures downstream from the meter. e ﬁrst

pressure, set by the service regulator at the meter, is usually

2 PSI but can be higher or lower depending on code

restrictions and gas company policy. is part of the system

is sized separately and ends at the pounds-to-inches regulator

inlet. Tables 4-7, 4-8 and 4-9 show maximum loads vs. inlet

pressures to the regulator.

e second pressure, at the outlet of the pounds-to-inches

regulator, is under 1/2 PSI; usually 8"WC for natural gas

and 11"WC for propane regulators supplied by Gastite®.

Generally, a parallel system requires a higher total footage

of smaller diameter tubing and fewer ﬁttings compared to a

series layout.

Fig. 3-1

Fig. 3-2

Fig. 3-3

Fig. 3-4

Multi-Unit Apartment Building

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SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

D) MULTIPLE MANIFOLD SYSTEMS

For those installations in which the energy load demand is large or the appliances are installed throughout the structure

with long distances from the meter, a multiple manifold system may be used (Fig. 3-5, 3-6). Elevated pressure systems are a

safe, eﬃcient method of providing for larger BTUH load demands while maintaining smaller pipe diameters.

E) COMBINATION STEEL / CSST SYSTEM (HYBRID)

In a hybrid system (Fig. 3-7), corrugated stainless steel

tubing is used in combination with rigid pipe or copper

tubing. In lower pressure systems it is often advantageous

to use both CSST and rigid pipe to help minimize pressure

drops typically encountered on systems with high loads and/

or long runs. Gastite ﬂexible Gas Piping is approved for use

in combination with all approved fuel gas-piping materials by

using approved pipe threads at the interface.

F) ELEVATED PRESSURE SYSTEM

In a complete elevated pressure system (Fig. 3-8), corrugated

stainless steel tubing is used to deliver pressures in excess of

1/2 PSI to a pounds-to-inches regulator positioned directly

in front of each appliance. is is an alternate method of

installation used to minimize pipe size on systems with high

loads and/or long runs. Regulators shall be sized per the

largest single appliance, see Table 4-10.

Fig. 3-5 Fig. 3-6

Fig. 3-7

Fig. 3-8

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SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.1.5 ALLOWABLE PRESSURE DROP

With respect to gas pipe sizing, the intent of all model codes is to ensure that there is suﬃcient gas volume and pressure

supplied to the appliance for proper operation. Language from the International Fuel Gas Code clearly illustrates this point.

“Allowable Pressure Drop: e design pressure loss on any piping system under maximum probable

ﬂow conditions, from point of delivery to the inlet connection of the equipment, shall be such that

the supply pressure at the equipment is greater than the minimum pressure required for proper

equipment operation.”

e Gastite®/FlashShield™ low-pressure tables are intended for use at a system pressure of 1/2 PSI or less, which

encompasses the range of commonly delivered utility pressures and equipment requirements. To determine which table

to use determine the system’s allowable pressure drop. e appropriate pressure drop can be calculated by subtracting the

appliance inlet pressure (typically 5"WC for NG, 10.5"WC for LPG) from the gas source pressure (gas meter for NG,

secondary regulator for LPG). Use the Gastite®/FlashShield capacity table labeled with the appropriate allowable pressure

drop and gas type. Increasing the available pressure drop will increase the available BTUHs, thus decreasing pipe sizes. It is

advantageous to allow for a larger pressure drop.

e Summation Method of pipe sizing calculates the actual pressure loss through each section of pipe. e sum of all the

losses is subtracted from the starting supply pressure to determine the inlet pressure to each appliance. e appliance inlet

pressure must fall within the manufacturer’s range for proper operation.

Note: Regardless of sizing method employed, the typical NG system should be sized for a minimum appliance inlet

pressure of 5"WC and 10.5"WC for LPG system. Pressures less than the typical minimums may be suﬃcient for proper

appliance operation but should be reviewed with the manufacturers’ input rating and the local administering authority.

Conversely, some modern higher performance appliances require an inlet pressure greater than the typical minimums.

Check the manufacturers’ input rating before sizing.

3.1.6 SIZING METHODS

Capacity Tables from this Guide (Section 7) or appropriate code approved tables must be used when sizing Gastite®/

FlashShield™ CSST. e sizing tables used in this manual include losses for four 90-degree bends, and two end ﬁttings.

Tubing runs with larger numbers of bends and/or ﬁttings should be increased by an equivalent length of tubing to the

following equation: L = 1.3 (N): where “L” is additional length of tubing, and “N” is the number of additional ﬁttings, or

90 degree bends.

Gastite®’s Longest Run tables and Summation tables are produced from the same ﬂuid ﬂow equations. As such, they will

provide the same results taking into account any rounding of distance or capacity. ese ﬂuid equations come from data

produced by a third party laboratory. e testing was performed on actual Gastite®/FlashShield™ CSST while tables in the

code reﬂect the most restrictive CSST.

THE LONGEST RUN METHOD:

A modiﬁed version of the longest run (commonly used in conventional rigid pipe systems) is presented here and used in

Examples 1, 2 & 3. is method may be used for any pressure as listed in the appropriate Capacity Table.

For sizing each length of pipe, determine the total gas load for all appliances serviced by that section and the maximum

distance over which that particular section delivers gas. e maximum distance includes overall length from the meter to

the furthest appliance serviced by that run. Refer to Section 7 Capacity Tables for the maximum ﬂow capacity of CSST at

the required piping length.

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SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

For sizing dual-pressure systems, the piping from the meter to the pounds-to-inches regulator is sized separately from the

piping downstream of the regulator outlet. is procedure is shown in Examples 4 & 5.

Sizing for a Hybrid System (one that includes both rigid pipe and CSST) is accomplished by using the longest run

method to determine the appropriate pipe size for a given load and run length. Each segment of the piping system uses the

appropriate sizing table for that particular piping material. is procedure is shown in Examples 6 & 7.

SUMMATION METHOD:

An alternative sizing method is the Summation Method which considers a summation of the pressure losses through

each section of piping. is procedure is utilized for the designer whose requirements are not satisﬁed by the previously

described methods. e summation method can be used for system pressures and pressure drops other than indicated in

the sizing tables for longest run. is method allows full use of the maximum ﬂow capacity of CSST. In this fashion, a

designer can minimize piping size (or maximize ﬂow capacity) with greater accuracy in more complicated arrangements.

e summation method is shown in Examples 8 & 9.

3.1.7 MODIFYING AN EXISTING SYSTEM

Gastite®/FlashShield™ ﬁttings transition from CSST to pipe thread (NPT) and may be run in conjunction with all other

approved fuel gas piping (iron pipe, polyethylene tubing, copper tubing, etc.). When adding appliances to an existing

system the installer must verify whether the existing system, upstream of the lines to be added, can support the additional

load.

A retroﬁtted line, even when properly sized, added to a system that can’t support the additional load, can adversely eﬀect

all the other appliances in the system.

When the existing system will not support the additional load several installation options exist. A new trunk line(s) can be

run replacing the under-sized system upstream of the retroﬁtted appliances. A dedicated trunk line can be run from the gas

source to the new appliance. e system pressure may be elevated, thus increasing the allowable pressure drop, after which

the existing trunk lines may aﬀord suﬃciently higher ﬂow capacity to handle the existing and new appliances.

If the piping is visible or the existing run lengths are known, the entire system can be resized using either aforementioned

sizing method (Longest Run or Summation). e system shall be resized with an appropriate sizing table based on the

aﬀordable pressure drop. When the piping is not visible or accessible for measurement, approximated lengths should be

rounded up.

3.2 SIZING PROCEDURES AND EXERCISES

3.2.1 SIZING EXAMPLES

While the following examples show typical applications of the sizing methods they do not address all of the system

conﬁgurations in which they can be used. In general, Longest Run and Summation can be used with any pressure or

system conﬁguration (series, parallel, dual-pressure, hybrid, etc.).

e following exercises illustrate various design layouts, pressure drops and sizing methods. To further highlight the

diﬀerences in methods and designs, examples 1-8 use the same appliance layout and load.

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SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.2 EXAMPLE 1: SERIES SYSTEM – 6"WC

Figure 3-9 below shows a typical single-family house installation with ﬁve (5) appliances. e piping is arranged in series

with a main run branching at the appliances. e utility company’s supply pressure (downstream of the meter) is 6"WC.

e utility company advises that the speciﬁc gravity of the gas delivered will be 0.60 and the energy content is 1 CFH =

1000 BTUH. e allowable pressure drop across the system has been determined to be 1.0"WC (supply pressure 6"WC –

appliance requirement 5"WC).

Fig. 3-9

TABLE 3-2

SECTION DESCRIPTION LOAD DELIVERED BY SECTION SECTION LENGTH RUN LENGTH TUBE SIZE

“A” – Trunk 221 CFH = 221,000 BTUH 40 feet 70 feet 1" CSST

“B” – Trunk 141 CFH = 141,000 BTUH 5 feet 70 feet 1" CSST

“C” – Trunk 105 CFH = 105,000 BTUH 10 feet 70 feet 1" CSST

“D” – Trunk 53 CFH = 53,000 BTUH 10 feet 70 feet 3/4" CSST

“E” – BBQ 25 CFH = 25,000 BTUH 5 feet 70 feet 1/2" CSST

“F” – Furnace 80 CFH = 80,000 BTUH 10 feet 50 feet 3/4" CSST

“G” – Water Heater 36 CFH = 36,000 BTUH 10 feet 55 feet 1/2" CSST

“H” – Range 52 CFH = 52,000 BTUH 10 feet 65 feet 3/4" CSST

“J” – Dryer 28 CFH = 28,000 BTUH 5 feet 70 feet 1/2" CSST

Run Length for Trunk Sections = Distance from meter to furthest appliance (Longest Run)

Run Length for Appliance Sections = Distance from meter to each appliance

SIZING RUN “A”

• Run “A” is sized by the total load of all appliances and the run length from the meter to the furthest appliance

• e total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH

• e run length to the BBQ (furthest appliance) is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-2 (1.0"WC pressure drop): for a 70ft run, 1" CSST has a capacity over 221CFH (actual: 227)

SIZING RUN “B”

• Run “B” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of the supplied appliances is 36 + 52 + 28 + 25 = 141CFH

• e run length to the BBQ (furthest appliance) is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 70ft run, 1" CSST has a capacity over 141CFH (actual: 227)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “C”

• Run “C” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of all appliances is 52 + 28 + 25 = 105CFH

• e run length to the BBQ (furthest appliance) is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-2 (1.0"WC pressure drop): for a 70ft run, 1" CSST has a capacity over 105CFH (actual: 227)

SIZING RUN “D”

• Run “D” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of the BBQ and the dryer is 25 + 28 = 53CFH

• e run length to the BBQ (furthest appliance) is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 70ft run, 3/4" CSST has a capacity over 53CFH (actual: 103)

SIZING RUN “E”

• Run “E” is sized by the total load of the supplied appliance and the run length from the meter to the furthest appliance

• e load of the BBQ is 25CFH

• e run length to the BBQ is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 25CFH (actual: 50)

SIZING RUN “F”

• Run “F” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the furnace is 80CFH

• e run length to the furnace is 40 + 10 = 50ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 50ft run, 3/4" CSST has a capacity over 80CFH (actual: 120)

SIZING RUN “G”

• Run “G” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the water heater is 36CFH

• e run length to the water heater is 40 + 5 + 10 = 55ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 60ft run, 1/2" CSST has a capacity over 36CFH (actual: 54)

SIZING RUN “H”

• Run “H” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the range is 52CFH

• e run length to the range is 40 + 5 + 10 + 10 = 65ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 70ft run, 3/4" CSST has a capacity over 52CFH (actual: 103)

SIZING RUN “J”

• Run “J” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the dryer is 28CFH

• e run length to the dryer is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 28CFH (actual: 50)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 25

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.3 EXAMPLE 2: PARALLEL SYSTEM – 6"WC

Figure 3-10 below shows the same house as Example 1. e piping is arranged in parallel fashion, with individual CSST

appliance runs supplied by a main distribution manifold. e utility company’s supply pressure (downstream of the meter)

is 6"WC. e utility company advises that the speciﬁc gravity of the gas delivered will be 0.60 and the energy content is 1

CFH = 1000 BTUH. e allowable pressure drop across the system has been determined to be 1.0"WC (supply pressure

6"WC - appliance requirement 5"WC).

Fig. 3-10

TABLE 3-3

SECTION DESCRIPTION LOAD DELIVERED BY SECTION SECTION LENGTH RUN LENGTH TUBE SIZE

“A” – Trunk 221 CFH = 221,000 BTUH 45 feet 70 feet 1" CSST

“B” – Furnace 80 CFH = 80,000 BTUH 15 feet 60 feet 3/4" CSST

“C” – Water Heater 36 CFH = 36,000 BTUH 10 feet 55 feet 1/2" CSST

“D” – Range 52 CFH = 52,000 BTUH 20 feet 65 feet 3/4" CSST

“E” – Dryer/BBQ Trunk 53 CFH = 53,000 BTUH 20 feet 70 feet 3/4" CSST

“F” – Dryer 28 CFH = 28,000 BTUH 5 feet 70 feet 1/2" CSST

“G” – BBQ 25 CFH = 25,000 BTUH 5 feet 70 feet 1/2" CSST

Run Length for Trunk Sections = Distance from meter to furthest appliance (Longest Run)

Run Length for Appliance Sections = Distance from meter to each appliance

SIZING RUN “A”

• Run “A” is sized by the total load of all appliances and the run length from the meter to the furthest appliance

• e total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH

• e run length to the BBQ (furthest appliance) is 45 + 20 + 5 = 70ft

• Referring to Table 7-2 (1.0"WC pressure drop): for a 70ft run, 1" CSST has a capacity over 221CFH (actual: 227)

SIZING RUN “B”

• Run “B” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the furnace is 80CFH

• e run length to the furnace is 45 + 15 = 60ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 60ft run, 3/4" CSST has a capacity over 80CFH (actual: 110)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “C”

• Run “C” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the water heater is 36CFH

• e run length to the water heater is 45 + 10 = 55ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 60ft run, 1/2" CSST has a capacity over 36CFH (actual: 54)

SIZING RUN “D”

• Run “D” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the range is 52CFH

• e run length to the range is 45 + 20 = 65ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 70ft run, 3/4" CSST has a capacity over 52CFH (actual: 103)

SIZING RUN “E”

• Run “E” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of the BBQ and the dryer is 25 + 28 = 53CFH

• e run length to the BBQ (furthest appliance) is 45 + 20 + 5 = 70ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 70ft run, 3/4" CSST has a capacity over 53CFH (actual: 103)

SIZING RUN “F”

• Run “F” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the dryer is 28CFH

• e run length to the dryer is 45 + 20 + 5 = 70ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 28CFH (actual: 50)

SIZING RUN “G”

• Run “G” is sized by the total load of the supplied appliance and the run length from the meter to the furthest appliance

• e load of the BBQ is 25CFH

• e run length to the BBQ is 45 + 20 + 5 = 70ft

• Referring to Table 7-2 (1.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 25CFH (actual: 50)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 27

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.4 EXAMPLE 3: PARALLEL SYSTEM – 12-14"WC

Figure 3-11 below shows the same house and piping system as Example 2. e piping is arranged in parallel fashion,

with individual CSST appliance runs supplied by a main distribution manifold. e utility company’s supply pressure

(downstream of the meter) is 12-14"WC. e utility company advises that the speciﬁc gravity of the gas delivered will be

0.60 and the energy content is 1 CFH = 1000 BTUH. e allowable pressure drop across the system has been determined

to be 7"WC (supply pressure 12"WC - appliance requirement 5"WC). As there is no 7"WC pressure drop chart available

we must use the next lowest chart: in this case the 6"WC pressure drop chart (Table 7-8).

Fig. 3-11

TABLE 3-4

SECTION DESCRIPTION LOAD DELIVERED BY SECTION SECTION LENGTH RUN LENGTH TUBE SIZE

“A” – Trunk 221 CFH = 221,000 BTUH 45 feet 70 feet 3/4" CSST

“B” – Furnace 80 CFH = 80,000 BTUH 15 feet 60 feet 1/2" CSST

“C” – Water Heater 36 CFH = 36,000 BTUH 10 feet 55 feet 3/8" CSST

“D” – Range 52 CFH = 52,000 BTUH 20 feet 65 feet 1/2" CSST

“E” – Dryer/BBQ Trunk 53 CFH = 53,000 BTUH 20 feet 70 feet 1/2" CSST

“F” – Dryer 28 CFH = 28,000 BTUH 5 feet 70 feet 3/8" CSST

“G” – BBQ 25 CFH = 25,000 BTUH 5 feet 70 feet 3/8" CSST

Run Length for Trunk Sections = Distance from meter to furthest appliance (Longest Run)

Run Length for Appliance Sections = Distance from meter to each appliance

SIZING RUN “A”

• Run “A” is sized by the total load of all appliances and the run length from the meter to the furthest appliance

• e total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH

• e run length to the BBQ (furthest appliance) is 45 + 20 + 5 = 70ft

• Referring to Table 7-8 (6.0"WC pressure drop) for a 70ft run, 3/4" CSST has a capacity over 221CFH (actual: 234)

SIZING RUN “B”

• Run “B” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the furnace is 80CFH

• e run length to the furnace is 45 + 15 = 60ft

• Referring to Table 7-8 (6.0"WC pressure drop) for a 60ft run, 1/2" CSST has a capacity over 80CFH (actual: 131)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “C”

• Run “C” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the water heater is 36CFH

• e run length to the water heater is 45 + 10 = 55ft

• Referring to Table 7-8 (6.0"WC pressure drop) for a 60ft run, 3/8" CSST has a capacity over 36CFH (actual: 47)

SIZING RUN “D”

• Run “D” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the range is 52CFH

• e run length to the range is 45 + 20 = 65ft

• Referring to Table 7-8 (6.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 52CFH (actual: 122)

SIZING RUN “E”

• Run “E” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of the BBQ and the dryer is 25 + 28 = 53CFH

• e run length to the BBQ (furthest appliance) is 45 + 20 + 5 = 70ft

• Referring to Table 7-8 (6.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 53CFH (actual: 122)

SIZING RUN “F”

• Run “F” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the dryer is 28CFH

• e run length to the dryer is 45 + 20 + 5 = 70ft

• Referring to Table 7-8 (6.0"WC pressure drop) for a 70ft run, 3/8" CSST has a capacity over 28CFH (actual: 43)

SIZING RUN “G”

• Run “G” is sized by the total load of the supplied appliance and the run length from the meter to the furthest appliance

• e load of the BBQ is 25CFH

• e run length to the BBQ is 45 + 20 + 5 = 70ft

• Referring to Table 7-8 (6.0"WC pressure drop) for a 70ft run, 3/8" CSST has a capacity over 25CFH (actual: 43)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 29

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.5 EXAMPLE 4: DUAL PRESSURE SYSTEM – 2 PSI TRUNK AND 8"WC APPLIANCE RUNS

Figure 3-12 below shows the same house and similar piping system as Example 3. e piping is arranged in parallel fashion,

with individual CSST appliance runs supplied by a main distribution manifold. A regulator is mounted at the manifold. e

utility company’s supply pressure (downstream of the meter) is 2 PSI. e utility company advises that the speciﬁc gravity

of the gas delivered will be 0.60 and the energy content is 1 CFH = 1000 BTUH. e pounds-to-inches regulator is set to

8"WC. Downstream of the regulator the allowable pressure drop across the system has been determined to be 3"WC (supply

pressure 8"WC - appliance requirement 5"WC). Upstream of the regulator the 2 PSI line pressure chart with a pressure drop

of 1 PSI can be used. is will supply the regulator with the 1 PSI inlet pressure required for full capacity ﬂow.

Fig. 3-12

TABLE 3-5

SECTION DESCRIPTION LOAD DELIVERED BY SECTION SECTION LENGTH RUN LENGTH TUBE SIZE

“A” – Trunk 221 CFH = 221,000 BTUH 45 feet 45 feet 1/2" CSST

“B” – Furnace 80 CFH = 80,000 BTUH 15 feet 15 feet 1/2" CSST

“C” – Water Heater 36 CFH = 36,000 BTUH 10 feet 10 feet 3/8" CSST

“D” – Range 52 CFH = 52,000 BTUH 20 feet 20 feet 3/8" CSST

“E” – Dryer/BBQ 53 CFH = 53,000 BTUH 20 feet 25 feet 1/2" CSST

“F” – Dryer 28 CFH = 28,000 BTUH 5 feet 25 feet 3/8" CSST

“G” – BBQ 25 CFH = 25,000 BTUH 5 feet 25 feet 3/8" CSST

Run Length for Trunk Sections = Distance from meter to regulator

Run Length for Appliance Sections = Distance from regulator to each appliance

SIZING RUN “A”

• Run “A” is sized by the total load of all appliances and the run length from the meter to the regulator

• e total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH

• e run length to the regulator is 45ft

• Referring to Table 7-10 (2 PSI line pressure, 1 PSI pressure drop) for a 45ft run, 1/2" CSST has a capacity over 221CFH

(actual: 307)

SIZING RUN “B”

• Run “B” is sized by the load of the supplied appliance and the run length from the regulator to the supplied appliance

• e load of the furnace is 80CFH

• e run length to the furnace is 15ft

• Referring to Table 7-5 (3.0"WC pressure drop) for a 15ft run, 1/2" CSST has a capacity over 80CFH (actual: 185)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “C”

• Run “C” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the water heater is 36CFH

• e run length to the water heater is 10ft

• Referring to Table 7-5 (3.0"WC pressure drop) for a 10ft run, 3/8" CSST has a capacity over 36CFH (actual: 83)

SIZING RUN “D”

• Run “D” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the range is 52CFH

• e run length to the range is 20ft

• Referring to Table 7-5 (3.0"WC pressure drop) for a 20ft run, 3/8" CSST has a capacity over 52CFH (actual: 58)

SIZING RUN “E”

• Run “E” is sized by the total load of all supplied appliances and the run length from the regulator to the furthest appliance

• e total load of the BBQ and the dryer is 25 + 28 = 53CFH

• e run length to the BBQ (furthest appliance) is 20 + 5 = 25ft

• Referring to Table 7-5 (3.0"WC pressure drop) for a 25ft run, 1/2" CSST has a capacity over 53CFH (actual: 144)

SIZING RUN “F”

• Run “F” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the dryer is 28CFH

• e run length to the dryer is 20 + 5 = 25ft

• Referring to Table 7-5 (3.0"WC pressure drop) for a 25ft run, 3/8" CSST has a capacity over 28CFH (actual: 51)

SIZING RUN “G”

• Run “G” is sized by the total load of the supplied appliance and the run length from the regulator to the furthest appliance

• e load of the BBQ is 25CFH

• e run length to the BBQ is 20 + 5 = 25ft

• Referring to Table 7-5 (3.0"WC pressure drop) for a 25ft run, 3/8" CSST has a capacity over 25CFH (actual: 51)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 31

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.6 EXAMPLE 5: MULTIPLE MANIFOLD SYSTEM

Figure 3-13 below shows the same house and similar piping system as Example 4. e piping is arranged in parallel fashion,

with individual CSST appliance runs supplied by two distribution manifolds. Regulators are mounted at each manifold. e

utility company’s supply pressure (downstream of the meter) is 2 PSI. e utility company advises that the speciﬁc gravity of

the gas delivered will be 0.60 and the energy content is 1 CFH = 1000 BTUH. e pounds-to-inches regulators are set to

8"WC. Downstream of the regulators the allowable pressure drop across the system has been determined to be 3"WC (supply

pressure 8"WC – appliance requirement 5"WC). Upstream of the regulators the 2 PSI line pressure chart with a pressure drop

of 1 PSI can be used. is will supply the regulators with the 1 PSI inlet pressure required for full capacity ﬂow.

Sizing of all appliance runs downstream from the pressure regulators is performed considering the length and load for each

appliance as in the previous example.

To size the elevated pressure trunk lines, use the Longest Run Method to determine the trunk line sizes by adding the

distance from the meter to the furthest regulator (trunk “A” + trunk “E”). is length is used to size both trunk lines. It

important to note that the total load of the system is passing through trunk “A” while only the load of the second manifold

system is passing through trunk “E."

Fig. 3-13

TABLE 3-6

SECTION DESCRIPTION LOAD DELIVERED BY SECTION SECTION LENGTH RUN LENGTH TUBE SIZE

“A” – Trunk 221 CFH = 221,000 BTUH 45 feet 65 feet 1/2" CSST

“E” – Trunk 53 CFH = 53,000 BTUH 20 feet 65 feet 3/8" CSST

Longest Run for Trunk Section = Distance from meter to furthest regulator.

Appliance runs are determined using the length and load for each section only.

SIZING RUN “A”

• Run “A” is sized by the load of all appliances and the run length from the meter to the farthest regulator

• e total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH

• e run length to the farthest regulator is 45 + 20 = 65ft

• Referring to Table 7-10 (2 PSI with a 1 PSI drop): for a 70-ft run, 1/2" CSST has a capacity over 221CFH (260 actual)

SIZING RUN “E”

• Run “E” is sized by the load of all supplied appliances and the run length from the meter to the farthest regulator

• e total load of all appliances is 28 + 25 = 53CFH

• e run length to the farthest regulator is 45 + 20 = 65ft

• Referring to Table 7-10 (2 PSI with a 1 PSI drop): for a 70-ft run, 3/8" CSST has a capacity over 53CFH (97 actual)

NOTE: Gastite® recommends that trunk lines be 1/2" minimum. erefore, this trunk run should be upsized to 1/2"

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.7 EXAMPLE 6: SERIES SYSTEM – 7"WC - HYBRID

Figure 3-14 below shows a typical single-family house retroﬁt installation with ﬁve (5) appliances, 2 of which are added

onto an existing black pipe system. e piping is arranged in series with a main run branching at the appliances. e utility

company’s supply pressure (downstream of the meter) is 7"WC. e utility company advises that the speciﬁc gravity of the

gas delivered will be 0.60 and the energy content is 1 CFH = 1000 BTUH. e allowable pressure drop across the system

has been determined to be 2.0"WC (supply pressure 7"WC - appliance requirement 5"WC).

Note: Rigid pipe sized using a 0.5"WC pressure drop table, as no 2.0"WC pressure drop table for Rigid pipe is available.

TABLE 3-7

SECTION DESCRIPTION LOAD DELIVERED BY SECTION SECTION LENGTH RUN LENGTH TUBE SIZE

“A” – Rigid Trunk 221 CFH = 221,000 BTUH 40 feet 70 feet 1" Rigid

“B” – Rigid Trunk 141 CFH = 140,000 BTUH 5 feet 70 feet 1" Rigid

“C” – Rigid Trunk 105 CFH = 105,000 BTUH 10 feet 70 feet 3/4" Rigid

“D” – CSST Trunk 53 CFH = 53,000 BTUH 10 feet 70 feet 1/2" CSST

“E” – BBQ 25 CFH = 25,000 BTUH 5 feet 70 feet 1/2" CSST

“F” – Furnace 80 CFH = 80,000 BTUH 10 feet 50 feet 3/4" Rigid

“G” – Water Heater 36 CFH = 36,000 BTUH 10 feet 55 feet 3/8" Rigid

“H” – Range 52 CFH = 52,000 BTUH 10 feet 65 feet 1/2" Rigid

“J” – Dryer 28 CFH = 28,000 BTUH 5 feet 70 feet 1/2" CSST

Run Length for Trunk Sections = Distance from meter to furthest appliance (Longest Run)

Run Length for Appliance Sections = Distance from meter to each appliance

SIZING RUN “A”

• Run “A” is sized by the total load of all appliances and the run length from the meter to the furthest appliance

• e total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH

• e run length to the BBQ (furthest appliance) is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop): for a 70ft run, 1" Rigid pipe has a capacity over 221CFH

(actual: 240)

SIZING RUN “B”

• Run “B” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of the supplied appliances is 36 + 52 + 28 + 25 = 141CFH

• e run length to the BBQ (furthest appliance) is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop) for a 70ft run, 1" Rigid pipe has a capacity over 141CFH

(actual: 240)

Fig. 3-14

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800.662.0208 / www.gastite.com / gastite@gastite.com 33

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “C”

• Run “C” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of all appliances is 52 + 28 + 25 = 105CFH

• e run length to the BBQ (furthest appliance) is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop): for a 70ft run, 3/4" Rigid pipe has a capacity over 105CFH

(actual: 125)

SIZING RUN “D”

• Run “D” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of the BBQ and the dryer is 25 + 28 = 53CFH

• e run length to the BBQ (furthest appliance) is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-4 (2.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 53CFH (actual: 71)

SIZING RUN “E”

• Run “E” is sized by the total load of the supplied appliance and the run length from the meter to the furthest appliance

• e load of the BBQ is 25CFH

• e run length to the BBQ is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-4 (2.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 25CFH (actual: 71)

SIZING RUN “F”

• Run “F” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the furnace is 80CFH

• e run length to the furnace is 40 + 10 = 50ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop) for a 50ft run, 3/4" Rigid pipe has a capacity over 80CFH

(actual: 151)

SIZING RUN “G”

• Run “G” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the water heater is 36CFH

• e run length to the water heater is 40 + 5 + 10 = 55ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop) for a 60ft run, 3/8" Rigid pipe has a capacity over 36CFH (actual: 36)

SIZING RUN “H”

• Run “H” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the range is 52CFH

• e run length to the range is 40 + 5 + 10 + 10 = 65ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop) for a 70ft run, 1/2" Rigid pipe has a capacity over 52CFH (actual: 61)

SIZING RUN “J”

• Run “J” is sized by the load of the supplied appliance and the run length to the supplied appliance

• e load of the dryer is 28CFH

• e run length to the dryer is 40 + 5 + 10 + 10 + 5 = 70ft

• Referring to Table 7-4 (2.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 28CFH (actual: 71)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.8 EXAMPLE 7: PARALLEL SYSTEM – 7"WC – HYBRID

Figure 3-15 below shows the same house and similar piping system as Example 2. e piping is arranged in parallel

fashion, with individual CSST appliance runs supplied by a main distribution manifold. e main trunk line (“A”) from

the meter to the distribution manifold is rigid pipe rather than CSST. e utility company’s supply pressure (downstream

of the meter) is 7"WC. e utility company advises that the speciﬁc gravity of the gas delivered will be 0.60 and the energy

content is 1 CFH = 1000 BTUH.

e allowable pressure drop across the system has been determined to be 2"WC (supply pressure 7"WC - appliance

requirement 5"WC). 0.5"WC pressure drop will be taken over the rigid pipe trunk line and the remaining appliance runs.

Fig. 3-15

Note: Rigid pipe sized using a 0.5"WC pressure drop table, as no 2.0"WC pressure drop table for Rigid pipe is available.

TABLE 3-8

SECTION DESCRIPTION LOAD DELIVERED BY SECTION SECTION LENGTH RUN LENGTH TUBE SIZE

“A” – Rigid Trunk 221 CFH = 221,000 BTUH 45 feet 70feet 1" Rigid

“B” – Furnace 80 CFH = 80,000 BTUH 15 feet 60 feet 3/4" CSST

“C” – Water Heater 36 CFH = 36,000 BTUH 10 feet 55 feet 1/2" CSST

“D” – Range 52 CFH = 52,000 BTUH 20 feet 65 feet 1/2" CSST

“E” – Dryer/BBQ Trunk 53 CFH = 53,000 BTUH 20 feet 70 feet 1/2" CSST

“F” – Dryer 28 CFH = 28,000 BTUH 5 feet 70 feet 1/2" CSST

“G” – BBQ 25 CFH = 25,000 BTUH 5 feet 70 feet 1/2" CSST

Run Length for Trunk Sections = Distance from meter to furthest appliance (Longest Run)

Run Length for Appliance Sections = Distance from meter to each appliance

SIZING RUN “A”

• Run “A” is sized by the total load of all appliances and the run length from the meter to the furthest appliance

• e total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH

• e run length to the BBQ (furthest appliance) is 45 + 20 + 5 = 70ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop): for a 70ft run, 1" pipe has a capacity over 221CFH (actual: 240)

SIZING RUN “B”

• Run “B” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the furnace is 80CFH

• e run length to the furnace is 45 + 15 = 60ft

• Referring to Table 7-4 (2.0"WC pressure drop) for a 60ft run, 3/4" CSST has a capacity over 80CFH (actual: 152)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 35

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “C”

• Run “C” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the water heater is 36CFH

• e run length to the water heater is 45 + 10 = 55ft

• Referring to Table 7-4 (2.0"WC pressure drop) for a 60ft run, 1/2" CSST has a capacity over 36CFH (actual: 76)

SIZING RUN “D”

• Run “D” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the range is 52CFH

• e run length to the range is 45 + 20 = 65ft

• Referring to Table 7-4 (2.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 52CFH (actual: 71)

SIZING RUN “E”

• Run “E” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of the BBQ and the dryer is 25 + 28 = 53CFH

• e run length to the BBQ (furthest appliance) is 45 + 20 + 5 = 70ft

• Referring to Table 7-4 (2.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 53CFH (actual: 71)

SIZING RUN “F”

• Run “F” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the dryer is 28CFH

• e run length to the dryer is 45 + 20 + 5 = 70ft

• Referring to Table 7-4 (2.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 28CFH (actual: 71)

SIZING RUN “G”

• Run “G” is sized by the total load of the supplied appliance and the run length from the meter to the furthest appliance

• e load of the BBQ is 25CFH

• e run length to the BBQ is 45 + 20 + 5 = 70ft

• Referring to Table 7-4 (2.0"WC pressure drop) for a 70ft run, 1/2" CSST has a capacity over 25CFH (actual: 71)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.9 EXAMPLE 8: SUMMATION METHOD FOR PARALLEL SYSTEM – 7"WC – HYBRID

Figure 3-16 below shows the same house as Example 6. e piping is arranged in parallel fashion, with individual CSST

appliance runs supplied by a main distribution manifold. e main trunk line (“A”) from the meter to the distribution

manifold is rigid pipe rather than CSST. e utility company’s supply pressure (downstream of the meter) is 7"WC. e

utility company advises that the speciﬁc gravity of the gas delivered will be 0.60 and the energy content is 1 CFH = 1000

BTUH. e allowable pressure drop across the system has been determined to be 2.0"WC (supply pressure 7"WC -

appliance requirement 5"WC).

When using the “Summation Method” for gas pipe sizing, the sum of the pressure losses through each section of pipe

should result in a minimum 5"WC pressure delivered to the appliance inlet. (Pressures less than 5"WC may be suﬃcient

for proper appliance operation but should be reviewed with the manufacturer’s input rating and the local administrative

authority).

Fig. 3-16

TABLE 3-9

SECTION DESCRIPTION LOAD DELIVERED BY SECTION SECTION LENGTH TUBE SIZE

“A” – Rigid Trunk 221 CFH = 221,000 BTUH 45 feet 3/4" Rigid

“B” – Furnace 80 CFH = 80,000 BTUH 15 feet 1/2" CSST

“C” – Water Heater 36 CFH = 36,000 BTUH 10 feet 3/8" CSST

“D” – Range 52 CFH = 52,000 BTUH 20 feet 1/2" CSST

“E” – Dryer/BBQ Trunk 53 CFH = 53,000 BTUH 20 feet 1/2" CSST

“F” – Dryer 28 CFH = 28,000 BTUH 5 feet 3/8" CSST

“G” – BBQ 25 CFH = 25,000 BTUH 5 feet 3/8" CSST

SIZING RUN “A”

• Run “A” is sized by the total load of all appliances and the section length

• e total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH

• e section length is 45ft

• Referring to Table 7-24 (Pressure drop per foot for Rigid Pipe): for a 225CFH load, 3/4" pipe has a drop of 0.021"WC per ft

• e pressure drop over Run “A” is: 0.021" x 45ft = 0.945"WC

• e available pressure at the end of run “A” is 7"WC - 0.945"WC = 6.055"WC

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 37

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “B”

• Run “B” is sized by the load of the supplied appliance and the section length

• e load of the furnace is 80CFH

• e section length to the furnace is 15ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 80CFH load, 1/2" CSST has a drop of 0.037"WC / ft

• e pressure drop over Run “B” is: 0.037" x 15ft = 0.555"WC

• e available pressure at the end of run “B” is 6.055"WC - 0.555"WC = 5.500"WC

SIZING RUN “C”

• Run “C” is sized by the load of the supplied appliance and the section length

• e load of the water heater is 36CFH

• e section length is 10ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 40CFH load, 3/8" CSST has a drop of 0.075"WC / ft

• e pressure drop over Run “C” is: 0.075" x 10ft = 0.750"WC

• e available pressure at the end of run “C” is 6.055"WC - 0.750"WC = 5.305"WC

SIZING RUN “D”

• Run “D” is sized by the load of the supplied appliance and the section length

• e load of the range is 52CFH

• e section length is 20ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 60CFH load, 1/2" CSST has a drop of 0.020"WC / ft

• e pressure drop over Run “D” is: 0.020" x 20ft = 0.400"WC

• e available pressure at the end of run “D” is 6.055"WC - 0.400"WC = 5.655"WC

SIZING RUN “E”

• Run “E” is sized by the total load of all supplied appliances and the section length

• e total load of the BBQ and the dryer is 25 + 28 = 53CFH

• e section length is 20ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 60CFH load, 1/2" CSST has a drop of 0.020"WC / ft

• e pressure drop over Run “E” is: 0.020" x 20ft = 0.400"WC

• e available pressure at the end of run “E” is 6.055"WC - 0.400"WC = 5.655"WC

SIZING RUN “F”

• Run “F” is sized by the load of the supplied appliance and the section length

• e load of the dryer is 28CFH

• e section length 5ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 30CFH load, 3/8" CSST has a drop of 0.044"WC / ft

• e pressure drop over Run “F” is: 0.044" x 5ft = 0.220"WC

• e available pressure at the end of run “F” is 5.655"WC - 0.220"WC = 5.435"WC

SIZING RUN “G”

• Run “G” is sized by the total load of the supplied appliance and the section length

• e load of the BBQ is 25CFH

• e section length 5ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 30CFH load, 3/8" CSST has a drop of 0.044"WC / ft

• e pressure drop over Run “G” is: 0.044" x 5ft = 0.220"WC

• e available pressure at the end of run “G” is 5.655"WC - 0.220"WC = 5.435"WC

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.10 EXAMPLE 9: SUMMATION METHOD FOR SERIES SYSTEM – 6"WC

Figure 3-17 below shows the same house and piping system as Example 1. e piping is arranged in series with a main run

branching at the appliances. e utility company’s supply pressure (downstream of the meter) is 6"WC. e utility company

advises that the speciﬁc gravity of the gas delivered will be 0.60 and the energy content is 1 CFH = 1000 BTUH. e

allowable pressure drop across the system has been determined to be 1.0"WC (supply pressure 6"WC - appliance requirement

5"WC).

When using the “Summation Method” for gas pipe sizing, the sum of the pressure losses through each section of pipe should

result in a minimum 5"WC pressure delivered to the appliance inlet. (Pressures less than 5"WC may be suﬃcient for proper

appliance operation but should be reviewed with the manufacturer’s input rating and the local administrative authority).

Fig. 3-17

TABLE 3-10

Section Description Load Delivered by Section Section Length Tube Size

“A” – Trunk 221 CFH = 221,000 BTUH 40 feet 1" CSST

“B” – Trunk 141 CFH = 141,000 BTUH 5 feet 1" CSST

“C” – Trunk 105 CFH = 105,000 BTUH 10 feet 1" CSST

“D” – Trunk 53 CFH = 53,000 BTUH 10 feet 3/4" CSST

“E” – BBQ 25 CFH = 25,000 BTUH 5 feet 1/2" CSST

“F” – Furnace 80 CFH = 80,000 BTUH 10 feet 3/4" CSST

“G” – Water Heater 36 CFH = 36,000 BTUH 10 feet 1/2" CSST

“H” – Range 52 CFH = 52,000 BTUH 10 feet 3/4" CSST

“J” – Dryer 28 CFH = 28,000 BTUH 5 feet 1/2" CSST

SIZING RUN “A”

• Run “A” is sized by the total load of all appliances and the section length

• e total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH

• e section length is 40ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 225CFH load, 1" CSST has a drop of 0.014"WC per ft. e

pressure drop over Run “A” is: 0.014" x 40ft = 0.560"WC

• e available pressure at the end of run “A” is 6"WC - 0.560"WC = 5.440"WC

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 39

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “B”

• Run “B” is sized by the total load of all supplied appliances and the section length

• e total load of the supplied appliances is 36 + 52 + 28 + 25 = 141CFH

• e section length is 5ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 150CFH load, 1" CSST has a drop of 0.006"WC / ft

• e pressure drop over Run “B” is: 0.006" x 5ft = 0.030"WC

• e available pressure at the end of run “B” is 5.440"WC - 0.030"WC = 5.410"WC

SIZING RUN “C”

• Run “C” is sized by the total load of all supplied appliances and the section length

• e total load of the supplied appliances is 52 + 28 + 25 = 105CFH

• e section length is 10ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 110CFH load, 1" CSST has a drop of 0.003"WC / ft

• e pressure drop over Run “C” is: 0.003" x 10ft = 0.030"WC

• e available pressure at the end of run “C” is 5.410"WC - 0.030"WC = 5.380"WC

SIZING RUN “D”

• Run “D” is sized by the total load of all supplied appliances and the section length

• e total load of the BBQ and the dryer is 25 + 28 = 53CFH

• e section length 10ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 60CFH load, 3/4" CSST has a drop of 0.004"WC / ft

• e pressure drop over Run “D” is: 0.004" x 10ft = 0.040"WC

• e available pressure at the end of run “D” is 5.380"WC - 0.040"WC = 5.340"WC

SIZING RUN “E”

• Run “E” is sized by the load of the supplied appliance and the section length

• e load of the BBQ is 25CFH

• e section length is 5ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 30CFH load, 1/2" CSST has a drop of 0.005"WC / ft

• e pressure drop over Run “E” is: 0.005" x 5ft = 0.025"WC

• e available pressure at the end of run “E” is 5.340"WC - 0.025"WC = 5.315"WC

SIZING RUN “F”

• Run “F” is sized by the load of the supplied appliance and the section length

• e load of the furnace is 80CFH

• e section length to the furnace is 10ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 80CFH load, 3/4" CSST has a drop of 0.008"WC / ft

• e pressure drop over Run “F” is: 0.008" x 10ft = 0.080"WC

• e available pressure at the end of run “F” is 5.440"WC - 0.080"WC = 5.360"WC

SIZING RUN “G”

• Run “G” is sized by the load of the supplied appliance and the section length

• e load of the water heater is 36CFH

• e section length to the water heater is 10ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 40CFH load, 1/2" CSST has a drop of 0.009"WC / ft

• e pressure drop over Run “G” is: 0.009" x 10ft = 0.090"WC

• e available pressure at the end of run “G” is 5.410"WC - 0.090"WC = 5.320"WC

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.10 EXAMPLE 9: SUMMATION METHOD FOR SERIES SYSTEM – 6"WC (CONTINUED)

SIZING RUN “H”

• Run “H” is sized by the load of the supplied appliance and the section length

• e load of the range is 52CFH

• e section length to the range is 10ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 60CFH load, 3/4" CSST has a drop of 0.004"WC / ft

• e pressure drop over Run “H” is: 0.004" x 10ft = 0.040"WC

• e available pressure at the end of run “H” is 5.380"WC - 0.040"WC = 5.340"WC

SIZING RUN “J”

• Run “J” is sized by the load of the supplied appliance and the section length

• e load of the dryer is 28CFH

• e section length to the dryer is 5ft

• Referring to Table 7-21 (Pressure drop per foot for Gastite® CSST): for a 30CFH load, 1/2" CSST has a drop of 0.005"WC / ft

• e pressure drop over Run “J” is: 0.005" x 5ft = 0.025"WC

• e available pressure at the end of run “J” is 5.340"WC - 0.025"WC = 5.315"WC

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 41

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.11 EXAMPLE 10: COMMERCIAL ELEVATED PRESSURE SERIES SYSTEM – 2 PSI

Figure 3-18 below shows a typical commercial rooftop installation with four (4) appliances. e piping is arranged in series

with a main run branching at the appliances. e utility company’s supply pressure (downstream of the meter) is 2 PSI.

e utility company advises that the speciﬁc gravity of the gas delivered will be 0.60 and the energy content is 1 CFH =

1000 BTUH. e 2 PSI line pressure chart with a pressure drop of 1 PSI can be used. is will supply the regulators with

the 1 PSI inlet pressure required for full capacity ﬂow.

Fig. 3-18

TABLE 3-11

SECTION DESCRIPTION LOAD DELIVERED BY SECTION SECTION LENGTH RUN LENGTH TUBE SIZE

“A” – Trunk 1250 CFH = 1,250,000 BTUH 15 feet 60 feet 1-1/4" CSST

“B” – Trunk 1000 CFH = 1,000,000 BTUH 15 feet 60 feet 1" CSST

“C” – Trunk 750 CFH = 750,000 BTUH 15 feet 60 feet 1" CSST

“D” – Air Handler 500 CFH = 500,000 BTUH 15 feet 60 feet 3/4" CSST

“E” – Make-Up Air Unit 250 CFH = 250,000 BTUH 10 feet 25 feet 1/2" CSST

“F” – Make-Up Air Unit 250 CFH = 250,000 BTUH 10 feet 55 feet 1/2" CSST

“G” – Make-Up Air Unit 250 CFH = 250,000 BTUH 10 feet 40 feet 1/2" CSST

Run Length for Trunk Sections = Distance from meter to furthest appliance (Longest Run)

Run Length for Appliance Sections = Distance from meter to each appliance

SIZING RUN “A”

• Run “A” is sized by the total load of all appliances and the run length from the meter to the furthest appliance

• e total load of all appliances is 250 + 250 + 250 + 500 = 1250CFH

• e run length to the Air Handler (furthest appliance) is 15 + 15 + 15 + 15 = 60ft

• Referring to Table 7-10 (2 PSI line pressure, 1 PSI pressure drop): for a 60ft run, 1-1/4" CSST has a capacity over 1250CFH

(actual: 1854)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “B”

• Run “B” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of the supplied appliances is 250 + 250 + 500 = 1000CFH

• e run length to the Air Handler (furthest appliance) is 15 + 15 + 15 + 15 = 60ft

• Referring to Table 7-10 (2 PSI line pressure, 1 PSI pressure drop): for a 60ft run, 1" CSST has a capacity over 1000CFH

(actual: 1213)

SIZING RUN “C”

• Run “C” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e total load of all appliances is 250 + 500 = 750CFH

• e run length to the Air Handler (furthest appliance) is 15 + 15 + 15 + 15 = 60ft

• Referring to Table 7-10 (2 PSI line pressure, 1 PSI pressure drop): for a 60ft run, 1" CSST has a capacity over 750CFH

(actual: 1213)

SIZING RUN “D”

• Run “D” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance

• e load of the Air Handler is 500CFH

• e run length to the Air Handler (furthest appliance) is 15 + 15 + 15 + 15 = 60ft

• Referring to Table 7-10 (2 PSI line pressure, 1 PSI pressure drop): for a 60ft run, 3/4" CSST has a capacity over 500CFH

(actual: 510)

SIZING RUN “E”

• Run “E” is sized by the total load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the Make-Up Air Unit is 250CFH

• e run length to the Make-Up Air Unit is 15 + 10 = 25ft

• Referring to Table 7-10 (2 PSI line pressure, 1 PSI pressure drop): for a 25ft run, 1/2" CSST has a capacity over 250CFH

(actual: 432)

SIZING RUN “F”

• Run “F” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the Make-Up Air Unit is 250CFH

• e run length to the Make-Up Air Unit is 15 + 15 + 15 + 10 = 55ft

• Referring to Table 7-10 (2 PSI line pressure, 1 PSI pressure drop): for a 60ft run, 1/2" CSST has a capacity over 250CFH

(actual: 281)

SIZING RUN “G”

• Run “G” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance

• e load of the Make-Up Air Unit is 250CFH

• e run length to the Make-Up Air Unit is 15 + 15 + 10 = 40ft

• Referring to Table 7-10 (2 PSI line pressure, 1 PSI pressure drop): for a 40ft run, 1/2" CSST has a capacity over 250CFH

(actual: 343)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 43

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

3.2.12 EXAMPLE 11: COMMERCIAL HYBRID SYSTEM – 7"WC

Figure 3-19 below shows a multi-level apartment building. e piping is arranged in

vertical parallel fashion, with individual CSST appliance runs supplied by distribution

manifolds. e main trunk line (“A”-“D”) from the meter to the distribution manifolds

is rigid pipe rather than CSST. e utility company’s supply pressure (downstream of

the meter) is 7"WC. e utility company advises that the speciﬁc gravity of the gas

delivered will be 0.60 and the energy content is 1 CFH = 1000 BTUH. e allowable

pressure drop across the system has been determined to be 2"WC (supply pressure

7"WC – appliance requirement 5"WC). Note: Rigid pipe sized using a 0.5"WC pressure

drop table as no 2.0"WC pressure drop table for rigid pipe is available.

TABLE 3-12

SECTION DESCRIPTION LOAD DELIVERED BY SECTION SECTION

LENGTH

RUN

LENGTH TUBE SIZE

“A” – Rigid Trunk 412 CFH = 412,000 BTUH 5 feet 60 feet 1-1/4" Rigid

“B” – Rigid Trunk 309 CFH = 309,000 BTUH 10 feet 60 feet 1-1/4" Rigid

“C” – Rigid Trunk 206 CFH = 206,000 BTUH 10 feet 60 feet 1" Rigid

“D” – Rigid Trunk 103 CFH = 103,000 BTUH 10 feet 60 feet 3/4" Rigid

“E1” – Dryer 28 CFH = 28,000 BTUH 20 feet 20 feet 3/8" CSST

“F1” – Fireplace 25 CFH = 25,000 BTUH 25 feet 30 feet 1/2" CSST

“G1” – Water Heater 50 CFH = 50,000 BTUH 15 feet 20 feet 1/2" CSST

“E2” – Dryer 28 CFH = 28,000 BTUH 15 feet 30 feet 3/8" CSST

“F2” – Fireplace 25 CFH = 25,000 BTUH 25 feet 40 feet 1/2" CSST

“G2” – Water Heater 50 CFH = 50,000 BTUH 15 feet 30 feet 1/2" CSST

“E3” – Dryer 28 CFH = 28,000 BTUH 15 feet 40 feet 3/8" CSST

“F3” – Fireplace 25 CFH = 25,000 BTUH 25 feet 50 feet 1/2" CSST

“G3” – Water Heater 50 CFH = 50,000 BTUH 15 feet 40 feet 1/2" CSST

“E4” – Dryer 28 CFH = 28,000 BTUH 15 feet 50 feet 3/8" CSST

“F4” – Fireplace 25 CFH = 25,000 BTUH 25 feet 60 feet 1/2" CSST

“G4” – Water Heater 50 CFH = 50,000 BTUH 15 feet 50 feet 1/2" CSST

Run Length for Trunk Sections = Distance from meter to furthest appliance (Longest Run)

Run Length for Appliance Sections = Distance from meter to each appliance

SIZING RUN “A”

• Run “A” is sized by the total load of all appliances and the run length from the meter to the furthest appliance

• e total load of all appliances is 4 x (50 + 25 + 28) = 412CFH

• e run length to the 4th ﬂoor Fireplace (furthest appliance) is 5 + 10 + 10 + 10 + 25 = 60ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop): for a 60ft run, 1-1/4" pipe has a capacity over 412CF (actual: 530)

SIZING RUN “B”

• Run “B” is sized by the load of the supplied appliances and the run length from the meter to the furthest appliance

• e total load of the supplied appliances is 3 x (50 + 25 + 28) = 309CFH

• e run length to the 4th ﬂoor Fireplace (furthest appliance) is 5 + 10 + 10 + 10 + 25 = 60ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop): for a 60ft run, 1-1/4" pipe has a capacity over 309CF

(actual: 530)

Fig. 3-19

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “C”

• Run “C” is sized by the load of the supplied appliances and the run length from the meter to the furthest appliance

• e total load of the supplied appliances is 2 x (50 + 25 + 28) = 206CFH

• e run length to the 4th ﬂoor Fireplace (furthest appliance) is 5 + 10 + 10 + 10 + 25 = 60ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop): for a 60ft run, 1" pipe has a capacity over 206CFH

(actual: 260)

SIZING RUN “D”

• Run “D” is sized by the load of the supplied appliances and the run length from the meter to the furthest appliance

• e total load of the supplied appliances is 50 + 25 + 28 = 103CFH

• e run length to the 4th ﬂoor Fireplace (furthest appliance) is 5 + 10 + 10 + 10 + 25 = 60ft

• Referring to Table 7-23 (Rigid pipe 0.5"WC pressure drop): for a 60ft run, 3/4" pipe has a capacity over

103CFH (actual: 138)

Sizing Runs E1, F1, G1, E2, F2 and G2 are similar to the sizing of E3, F3 and G3.

SIZING RUN “E3”

• Run “E3” is sized by the load of the supplied appliances and the run length from the meter to the supplied appliance

• e load of the dryer is 28CFH

• e run length to the dryer is 5 + 10 + 10 + 15 = 40ft

• Referring to Table 7-4 (2"WC pressure drop) for a 40ft run, 3/8" CSST has a capacity of 28CFH (actual: 32)

SIZING RUN “F3”

• Run “F3” is sized by the load of the supplied appliances and the run length from the meter to the supplied appliance

• e load of the ﬁreplace is 25CFH

• e run length to the ﬁreplace is 5 + 10 + 10 + 25 = 50ft

• Referring to Table 7-4 (2"WC pressure drop) for a 50ft run, 3/8" CSST has a capacity 25CFH (Check against ﬁreplace sizing)

• Referring to Table 4-6 (Fireplace Sizing), 1/2" CSST has a capacity over 25CFH (actual: 83)

• Using the larger result, this run will be sized to 1/2" CSST

SIZING RUN “G3”

• Run “G3” is sized by the load of the supplied appliances and the run length from the meter to the supplied appliance

• e load of the water heater is 50CFH

• e run length to the water heater is 5 + 10 + 10 + 15 = 40ft

• Referring to Table 7-4 (2"WC pressure drop) for a 40ft run, 1/2" CSST has a capacity over 50CFH (actual: 93)

SIZING RUN “E4”

• Run “E4” is sized by the load of the supplied appliances and the run length from the meter to the supplied appliance

• e load of the dryer is 28CFH

• e run length to the dryer is 5 + 10 + 10 + 10 + 15 = 50ft

• Referring to Table 7-4 (2"WC pressure drop) for a 50ft run, 3/8" CSST has a capacity of 28CFH (actual: 29)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 45

SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017

SIZING RUN “F4”

• Run “F4” is sized by the load of the supplied appliances and the run length from the meter to the supplied appliance

• e load of the ﬁreplace is 25CFH

• e run length to the ﬁreplace is 5 + 10 + 10 + 10 + 25 = 60ft

• Referring to Table 7-4 (2"WC pressure drop) for a 60ft run, 3/8" CSST has a capacity over 25CFH (Check against ﬁreplace

sizing)

• Referring to Table 4-6 (Fireplace Sizing), 1/2" CSST has a capacity over 25CFH (actual: 76)

• Using the larger result, this run will be sized to 1/2" CSST

SIZING RUN “G4”

• Run “G4” is sized by the load of the supplied appliances and the run length from the meter to the supplied appliance

• e load of the water heater is 50CFH

• e run length to the water heater is 5 + 10 + 10 + 10 + 15 = 50ft

• Referring to Table 7-4 (2"WC pressure drop) for a 50ft run, 1/2" CSST has a capacity over 50CFH (actual: 83)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SEPTEMBER 2017

NOTES

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 47

SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

SECTION 4.0 INSTALLATION PRACTICES

4.1 GENERAL PROVISIONS

a) Precautions must be taken to ensure any exposed Gastite®/FlashShield™ CSST is not damaged or abused during building

construction. All tubing, ﬁttings and hardware should be stored in a clean, dry location prior to installation.

b) Open ends of the tubing are to be temporarily plugged or taped closed prior to installation to prevent entrance of dirt,

dust or other debris.

c) e protective plastic jacketing should be kept in place as much as possible to protect the tubing.

d) CSST and the system components including brass ﬁttings and valves can be corroded by various chemical substances

which may be present on a job site or within a structure. Contact with these chemicals must be avoided. Any contact

should be immediately rinsed away.

e) Protect tubing from contact with sharp objects. When installing in, through, or around sharp metal structuring (i.e.

metal studs, sheet metal, I-beams, and ﬁreplace enclosures) non-metallic grommets or tubing should be used to prevent

any direct contact which could subject tubing to damage.

f) Avoid stressing the tubing or ﬁttings with tight bends, kinks, twists, stretching or repetitive bending. Refer to Table 4-1

below for the recommended minimum bend radius for Gastite®/FlashShield™ CSST (Fig. 4-1).

TABLE 4-1

BEND RADIUS

GASTITE®/

FLASHSHIELD™ SIZE EHD ABSOLUTE MIN.

BEND RADIUS

SUGGESTED BEND

RADIUS

3/8" 13 3/4" 3.0"

1/2" 19 3/4" 3.0"

3/4" 23 1.0" 3.0"

1" 31 3.0" 5.0"

1-1/4" 37 3.0" 5.0"

1-1/2" 48 3.0" 5.0"

2" 60 4.0" 6.0"

g) Supporting Gastite®/FlashShield™ CSST — Tubing shall be supported in a workmanlike manner with pipe straps, bands

or hangers suitable for the size and weight of the tubing, at intervals not to exceed those shown in Table 4-3. A proper

support is one which is designed as a pipe hanger, does not damage the tubing during installation, and provides full

support. “J” Hooks may not be used as they may damage the Gastite®/FlashShield™ CSST. Zip ties/cable ties are not

to be used as a primary support but may be used to organize or bundle Gastite®/FlashShield™ CSST. See Table 4-5 for

supporting Gastite®/FlashShield™ CSST in a rooftop application.

Direct contact between Gastite® yellow CSST and continuous metallic systems is prohibited. When supporting

Gastite® CSST tubing runs, the use of other conductive metallic systems such as metallic appliance vents, metallic

ducting and piping, and insulated or jacketed electrical wiring and cables should be avoided.

When supporting FlashShield™ tubing runs, contact with other continuous metallic systems is acceptable.

h) Gastite®/FlashShield™ CSST must be rigidly terminated with a FS-Series or XR3 ﬁtting. is can be achieved by

terminating with a rigidly mounted ﬁtting or by terminating with a ﬁtting threaded onto a rigid gas-piping component.

Fig. 4-1

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800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.2 FIELD FITTING ASSEMBLY PROCEDURE

4.2.1 XR3 FITTING TO GASTITE® YELLOW CSST

STEP 1 CUT-TO-LENGTH (FIG. 4-2)

Cut tubing to desired length using tubing cutter. Cut should be centered in a

corrugation valley. Use light roller pressure with extra rotations in one direction

to leave tubing round and free of burrs on cut.

To ensure a quality ﬂare, all cuts should be made on a straight section of tubing.

Note: Tubing ends are sharp, use care when handling.

STEP 2 STRIP JACKET (FIG. 4-3, FIG. 4-4)

Using a utility knife, cut jacket back to the second valley from tubing end.

Do not cut the jacket in such a way that the steel tubing end is scored.

(is could aﬀect seating).

Remove the short section of jacket which will expose one full corrugation-valley

of the tubing.

STEP 3 INSTALL NUT AND BUSHINGS (FIG. 4-5)

read ﬁtting body (NPT thread) into valve or appliance connection.

Slide nut onto tubing and back a few inches.

Separate bushings and position on tubing as shown, locating large bump into

the valley of the ﬁrst corrugation leaving one corrugation-peak exposed between

the end of the bushing and tubing.

Fig. 4-2

Fig. 4-3

Fig. 4-4

Fig. 4-5

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 49

SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

STEP 4 POSITION BUSHINGS (FIG. 4-6)

Insert bushings into ﬁtting body. A small amount of resistance indicates the

bushings are being compressed to further capture the jacket.

Note: Pipe dope or sealant is not to be used inside the ﬁtting.

STEP 5 WRENCH FITTING (FIG. 4-7)

Slide nut over bushings and thread onto ﬁtting body. Some resistance will be

experienced as the nut begins to compress the tubing and create the double-wall

ﬂare. Continue to wrench the nut until the resistance increases greatly and the

double-wall ﬂare is tightly seated.

Note: Rotate the nut only during the tightening process. Do not rotate the ﬁtting body.

TABLE 4-2

FLASHSHIELD™ RECOMMENDED TORQUE VALUES

SIZE EHD *TORQUE

3/8" 13 25 ft-lbs

1/2" 19 35 ft-lbs

3/4" 23 45 ft-lbs

1" 31 65 ft-lbs

1-1/4" 37 95 ft-lbs

1-1/2" 48 120 ft-lbs

2" 60 150 ft-lbs

Fitting is factory lubricated to reduce ﬁeld torque requirements.

Lubrication must be chloride free.

* Minimum torque values supplied for lab testing reference only. Field installation

requirements: system must pass pressure/leak test (See Section 6).

Fig. 4-6

Fig. 4-7

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.2.2 XR3 FITTING TO FLASHSHIELD™ CSST

STEP 1 CUT-TO-LENGTH (FIG. 4-8)

Cut tubing to desired length using tubing cutter. Cut should be centered in a cor-

rugation valley. Use light roller pressure with extra rotations in one direction to

leave tubing round and free of burrs on cut.

To ensure a quality ﬂare, all cuts should be made on a straight section of tubing.

Note: Tube ends are sharp use caution when handling.

STEP 2 CUT & STRIP JACKET LAYERS (FIG. 4-9, FIG. 4-10, FIG. 4-11)

Place cut-end of FlashShield™ tubing into Side 1 of the stripping tool up to the

tube stop.

Cut 1: Close the stripping tool around tubing. Begin rotating the tool back and

forth on the CSST (3 – 5, 200º twists) while applying pressure until the blades

cut through all 3 jacket layers.

Strip: To remove jacket section, release pressure and grasp the tool from the end.

Pull tool straight away from tubing while allowing the tool to open slightly so

that the blades can clear the peaks of the corrugations. Remove and discard the

stripped jacket layer(s) from the tool.

Cut 2: Turn stripping tool around to side 2 and place the stripped tubing end back

in the tool up to the tube stop. While maintaining the tube against the tube stop,

apply ﬁrm closing pressure and rotate the tool back and forth on the CSST (3-5,

200 twists) until the blades have cut through the outer plastic jacket layer only.

Strip: Maintain ﬁrm closing pressure and pull the tool straight away from the tube

to use the blades to strip oﬀ the outer coating. Occasionally, a small portion of

material may prevent complete stripping. Use the pliers feature at the corner of

the tool to grab the material and pull it away.

Note: Accidentally cutting through the aluminum shield below the point of the outer jacket

cut/strip location will reduce the eﬀectiveness of the ﬁtting-to-shield electrical continuity,

and FlashShield’s electrical performance.

Fig. 4-8

Fig. 4-9

Fig. 4-10

Fig. 4-11

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 51

SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

STEP 3 INSTALL NUT AND BUSHINGS (FIG. 4-12)

read ﬁtting body (NPT thread) into valve or appliance connection. Slide nut

onto CSST and back a few inches. Separate bushings and position on tubing as

shown, locating large bump into the valley of the ﬁrst corrugation leaving one

corrugation-peak exposed between the end of the bushing and tubing.

Note: Metallic shield contact feature must be utilized with FlashShield.

STEP 4 POSITION BUSHINGS (FIG. 4-13)

Insert bushings into ﬁtting body. A small amount of resistance indicates the

bushings are being compressed to further capture the jacket.

Note: Pipe dope or sealant is not to be used inside the ﬁtting.

STEP 5 WRENCH FITTING (FIG. 4-14)

Slide nut over bushings and thread onto ﬁtting body. Some resistance will be

experienced as the nut begins to compress the tubing and create the double-wall

ﬂare. Continue to wrench the nut until the resistance increases greatly and the

double-wall ﬂare is tightly seated.

Note: Rotate the nut only during the tightening process. Do not rotate the ﬁtting body.

Note: e use of XR3 series ﬁttings in combination with Gastite yellow tubing

is an acceptable practice.

TABLE 4-2

FLASHSHIELD™ RECOMMENDED TORQUE VALUES

SIZE EHD *TORQUE

3/8" 13 25 ft-lbs

1/2" 19 35 ft-lbs

3/4" 23 45 ft-lbs

1" 31 65 ft-lbs

1-1/4" 37 95 ft-lbs

1-1/2" 48 120 ft-lbs

2" 60 150 ft-lbs

Fitting is factory lubricated to reduce ﬁeld torque requirements.

Lubrication must be chloride free.

* Minimum torque values supplied for lab testing reference only. Field installation

requirements: system must pass pressure/leak test (See Section 6).

Fig. 4-12

Fig. 4-13

Fig. 4-14

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.2.3 XR3 FITTING TO FLASHSHIELD™ CSST

(WITHOUT STRIPPING TOOL)

STEP 1 CUT-TO-LENGTH (FIG. 4-15)

Cut tubing to desired length using tubing cutter. Cut should be centered in a

corrugation valley. Use light roller pressure with extra rotations in one direction

to leave tubing round and free of burrs on cut. To ensure a quality ﬂare, all cuts

should be made on a straight section of tubing.

Note: Tube ends are sharp, use care when handling.

STEP 2 CUT & STRIP JACKET LAYERS (FIG. 4-16)

Using a utility knife, cut through all three jacket layers back to the second valley

from tubing end. Do not cut the jacket layers in such a way that the steel tubing

end is scored. (is could aﬀect seating). Remove the short section of jacket layers

which will expose one full corrugation-valley of the tubing.

STEP 3 LOCATE AND MARK 4TH CORRUGATION PEAK (FIG. 4-17)

e outer poly layer needs to be marked and cut at peak of 4th crown to expose a

section of the metallic shield. Temporarily place one bushing into location on the

CSST (see schematic). e area between the two back bushing ridges indicates the

peak of the 4th corrugation.

Note or mark this point (top of 4th corrugation) as the location at which the outer

black layer is to be cut and stripped.

STEP 4 CUT & STRIP OUTER JACKET LAYER (FIG. 4-18, FIG. 4-19)

Cut the outer jacket at the peak of the 4th corrugation as identiﬁed in the

prior step. Remove outer jacket section. e ﬁnal stripped conﬁguration of the

FlashShield jacket layers looks as shown.

Note: Cut the outer jacket carefully to avoid cutting through the aluminum shield during

this outer jacket cut. Cutting through the aluminum shield below the point of the outer

jacket cut/strip will reduce the eﬀectiveness of the ﬁtting-to-shield electrical continuity,

and FlashShield’s electrical performance.

Fig. 4-15

Fig. 4-16

Fig. 4-17

Fig. 4-19

Fig. 4-18

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 53

SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

STEP 5 INSTALL NUT AND BUSHINGS (FIG. 4-20)

read ﬁtting body (NPT thread) into valve or appliance connection. Slide nut

onto CSST and back a few inches. Separate bushings and position on tubing as

shown, locating large bump into the valley of the ﬁrst corrugation leaving one

corrugation-peak exposed between the end of the bushing and tubing.

Note: Metallic shield contact feature must be utilized with FlashShield

STEP 6 POSITION BUSHINGS (FIG. 4-21)

Insert bushings into ﬁtting body. A small amount of resistance indicates the

bushings are being compressed to further capture the jacket.

Note: Pipe dope or sealant is not to be used inside the ﬁtting.

STEP 7 WRENCH FITTING (FIG. 4-22)

Slide nut over bushings and thread onto ﬁtting body. Some resistance will be

experienced as the nut begins to compress the tubing and create the double-wall

ﬂare. Continue to wrench the nut until the resistance increases greatly and the

double-wall ﬂare is tightly seated.

Note: Rotate the nut only during the tightening process. Do not rotate the ﬁtting body.

TABLE 4-2

FLASHSHIELD™ RECOMMENDED TORQUE VALUES

SIZE EHD *TORQUE

3/8" 13 25 ft-lbs

1/2" 19 35 ft-lbs

3/4" 23 45 ft-lbs

1" 31 65 ft-lbs

1-1/4" 37 95 ft-lbs

1-1/2" 48 120 ft-lbs

2" 60 150 ft-lbs

Fitting is factory lubricated to reduce ﬁeld torque requirements.

Lubrication must be chloride free.

* Minimum torque values supplied for lab testing reference only. Field installation

requirements: system must pass pressure/leak test (See Section 6).

Fig. 4-20

Fig. 4-21

Fig. 4-22

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.2.4 OTHER ACCESSORY INSTALLATION

TERM BRACKET FITTING (FIG. 4-23 THROUGH FIG. 4-26)

1) Attach Bracket to stud or mounting surface.

2) Slide Jam-Nut over tubing and route tubing through Bracket.

3) Attach XR3 ﬁtting to tubing.

4) Slide the XR3 ﬁtting back onto Bracket and thread Jam-Nut.

XR3 OUTLET BOX (FIG. 4-27 THROUGH FIG. 4-31)

1) Mount Box and Bracket to stud or mounting surface.

2) Slide Jam-Nut over tubing and route tubing through Bracket and Box.

3) Attach Fitting to tubing.

4) Secure Jam-Nut to Fitting.

5) Attach Ball-Valve.

Note: Strike Protection (Floppy) not shown for clarity.

Step 1: Fig. 4-23

Step 1: Fig. 4-27 Step 2: Fig. 4-28 Step 3: Fig. 4-29 Step 4: Fig. 4-30 Step 5: Fig. 4-31

Step 2: Fig. 4-24 Step 3: Fig. 4-25 Step 4: Fig. 4-26

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 55

SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.3 ROUTING

4.3.1 VERTICAL RUNS

Tubing runs should be relatively plumb and free to move within the wall cavity without any physical support between

the ﬂoors. For support requirements refer to Section 4.1.f. Where any run is greater than two stories or 20-ft, additional

support (appropriate to the weight of the tubing) must be provided at the point of penetration through the ﬂoor.

Direct contact between Gastite yellow CSST and continuous metallic systems is prohibited. When installing

vertical runs, maintain as much isolation/separation as reasonably possible from other continuous metallic systems

in the building.

ere is no requirement to maintain separation from other electrically conductive systems when routing

FlashShield™

4.3.2 HORIZONTAL RUNS

Tubing routed on top of ceiling joists and other structural members which comply with the horizontal support spacing

requirements will be considered suﬃciently supported. See Figures 4-32, 4-33, 4-34 and 4-35 for examples of acceptable

support conﬁgurations when routing Gastite®/FlashShield™. Gastite®/FlashShield™ may be routed beneath, through and

alongside ﬂoor and ceiling joists. Due consideration must be given to future construction possibilities. Horizontal runs in

concealed areas must conform to Section 4.4 Protection.

Direct contact between Gastite yellow CSST and continuous metallic systems is prohibited. When installing

horizontal runs, maintain as much isolation/separation as reasonably possible from other continuous metallic

systems in the building.

ere is no requirement to maintain separation from other continuous metallic systems when routing

FlashShield™

TABLE 4-3

SUPPORT SPACING (NON-ROOFTOP, NON-WALL CAVITY)

GASTITE®/

FLASHSHIELD™ SIZE EHD VERTICAL OR HORIZONTAL

3/8" 13 4 Feet

1/2" 19 6 Feet

3/4" 23 8 Feet (USA) 6 Feet (Canada)

1" 31 8 Feet (USA) 6 Feet (Canada)

1-1/4" 37 8 Feet (USA) 6 Feet (Canada)

1-1/2" 48 8 Feet (USA) 6 Feet (Canada)

2" 60 8 Feet (USA) 6 Feet (Canada)

4.3.3 INSTALLATION CLEARANCE HOLES

Clearance holes for routing Gastite®/FlashShield™ CSST are to

be approximately 1/2 inch greater than the O.D. of the Gastite®/

FlashShield™ CSST. Drilling of any structural member must be in

conformance with the local building code. Refer to Table 4-4 for the

recommended drill hole sizing.

TABLE 4-4

GASTITE®/FLASHSHIELD™

CLEARANCE HOLES

GASTITE®/

FLASHSHIELD™ SIZE DRILL HOLE SIZE (MIN)

3/8" 1"

1/2" 1-1/4"

3/4" 1-1/2"

1" 1-3/4"

1-1/4" 2"

1-1/2" 2-1/4"

2" 3"

Fig. 4-32

Fig. 4-34

Fig. 4-33

Fig. 4-35

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.3.4 CONCEALED FITTINGS

e Gastite®/FlashShield™ Mechanical Fittings have been tested and listed per the requirements of ANSI LC1/CSA 6.26

for concealed use. e ﬁtting may be used for concealed attachment including, but not limited to: appliance valves, branch

runs using tee ﬁttings, length splices and stub-outs manufactured from approved fuel gas piping materials.

ese guidelines cannot address all applications of concealed ﬁttings, but instead, provide typical instructions to

demonstrate the principles that apply to ﬁttings listed for installation in concealed locations. (Reference National Fuel Gas

Code, NFPA 54, Concealed Piping in Buildings).

a) New Installations (Fig. 4-36) – When multiple gas

outlets are supplied from a single run of Gastite®/

FlashShield™ CSST, each downstream outlet branch

can be connected to the main run using a tee-type

ﬁtting which can be located in a concealed location.

b) Fireplace key valves (Fig. 4-37) – Gastite®/

FlashShield™ CSST connections to ﬁreplace key

valves can be located in a concealed location when

accessibility is not readily provided.

Note: Strike protection (ﬂoppy) not shown, for clarity.

c) Stub-outs (Fig. 4-38) – Gastite®/FlashShield™CSST

connections to stub-outs fabricated from approved

fuel gas piping materials.

d) Exclusion – Manifold stations for dual pressure systems which include the multi-port manifold, shut-oﬀ valve and

pressure regulator shall not be installed in concealed locations regardless of the qualiﬁcations of the tubing.

4.3.5 MODIFICATIONS TO EXISTING SYSTEMS

a) New Ceilings in Unﬁnished Rooms/Basements – Gastite®/FlashShield™ CSST ﬁttings originally installed in accessible

ceiling locations can be concealed in the event a ceiling is installed at a later date.

b) Extensions to Existing Tubing Runs – Concealed tubing can be modiﬁed to permit an extension to another appliance

location provided there is suﬃcient capacity to supply both appliances at the same time. If an accessible location for the

modiﬁcation is not available, the existing tubing run can be modiﬁed with a tee ﬁtting that will result in a concealed

ﬁtting behind the wallboard.

c) When modiﬁcations lead to concealed tubing, strike protection may be required. Refer to Section 4.4.

Fig. 4-37

Note: Strike Protection (Floppy) not shown for

clarity.

Fig. 4-38

Fig. 4-36

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.3.6 OUTDOOR

Gastite®/FlashShield™ Flexible Gas Tubing has passed all requirements of ANSI LC1/CSA 6.26, which include testing for

suitability for exposure of CSST piping systems to outdoor environments.

a) Outdoors – When installed outdoors, the external jacketing shall remain intact as much as practical for the given

installation. Any portions of the exposed stainless steel tubing shall be wrapped with tape or sleeved to prevent threats by

corrosive chemicals, especially chlorides. Self-bonding silicone tape is recommended here for durability.

b) Along side a structure – When installed along the outside of a structure (between the ground and a height of 6 ft) in

an exposed condition, the Gastite®/FlashShield™ CSST shall be protected from mechanical damage inside a conduit

or chase. A conduit or chase is not required if the tubing is installed in a location that will not subject the Gastite®/

FlashShield™ CSST to mechanical damage.

4.3.7 FIRE RATED CONSTRUCTION

e Gastite®/FlashShield™ jacket is ASTM E84 and CAN/ULC-S102.2 25/50 compliant for the ﬂame smoke spread and

density index. ese values meet most typical requirements for building construction. erefore, the jacket should remain

intact when passing through typical building constructions such as plenums, ﬂoor and ceiling joists, rim joists, walls or

other ﬁre rated resistance construction limited to materials of ASTM E84 or CAN/ULC-S102.2 ratings of 25 ﬂame and

50 smoke, or lower.

A plenum is deﬁned as an enclosed portion of the building structure that is designed to allow air movement, and thereby

serve as part of an air distribution system. (See deﬁnition of Plenum, Section 8.0.) No gas tubing may be run within

ductwork.

For tubing passing through a UL classiﬁed ﬁre rated construction, UL Classiﬁed Systems for “rough-Penetration

Firestop Systems (XHEZ)” may be found in UL Fire Resistance Volume 2. In instances that UL speciﬁcations for ﬁre rated

construction conﬂict with the current Gastite Design and Installation Guide, UL takes precedence.

4.3.8 ROUTING THROUGH MASONRY MATERIAL

“Masonry material” includes but is not limited to brick, concrete, mortar, and stucco. e term “through masonry

construction” refers to any enclosed/concealed construction spaces where CSST is routed in close proximity to masonry

but does not apply to exposed CSST mounted to a set masonry surface.

When it is necessary to install Gastite®/FlashShield™ through masonry materials the tubing shall be routed through a

conduit that is 1/2" larger in diameter (to ease routing) than the OD of the CSST and appropriate for the application. e

sleeve must maintain a continuous watertight barrier between the masonry material and the CSST, up to or past the edge

of the masonry hole. Masonry encasement refers to any enclosed/concealed construction within “masonry material” that

produces distributed loads. For masonry encasement see Underground Installations (Section 4.9).

4.3.9 INSTALLATION WITHIN A CHIMNEY CHASE

Gastite yellow tubing shall not be installed within a chase and/or enclosure that includes a metallic appliance vent

and/or metallic chimney liner that protrudes through and/or past the roof.

FlashShield™ CSST may be routed within a chimney chase.

4.3.10 CLEARANCE FROM THE UNDERSIDE OF A ROOF DECK

a) A minimum of 3 inches of separation should be maintained from the underside of a shingled roof deck to take into

account the potential of roof nail penetration due to future repair and/or replacement of the roof.

b) Gastite CSST shall not come in contact with reﬂective radiant barrier insulation that is attached to the underside of a roof deck.

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.4 STRIKE PROTECTION

Concealed Gastite®/FlashShield™ CSST should be routed in areas that will minimize the opportunity for physical damage

and/or installed in areas where the tubing will be free to move to avoid a potential puncture threat. e tube can be

considered free to move when there is at least the tube’s outside diameter of clearance on all sides of the tubing.

Gastite®/FlashShield™ CSST installed in locations subject to physical damage shall be adequately protected. e tubing shall

be protected at points of support and when passing through structural members such as studs, joists and plates. Where all

three of the following conditions exist, mechanical strike protection must be used.

1) Concealed – View is obstructed by walls, and structural members.

2) Constrained – Tubing is not free to move to avoid puncture threats.

3) Within 3 inches of a potential threat – Tubing is routed in locations which are within 3 inches of drills, screws, or nails.

4.4.1 STRIKE PLATES

For Gastite®/FlashShield™ CSST which meets all three of the conditions above, the required method for protecting concealed

tubing is hardened steel striker plates listed for use with corrugated stainless steel tubing systems. Striker plates are used at

all points of penetration through studs, joists, plates or similar structures (Figures 4-39, 4-40, 4-41, 4-42 and 4-43). Striker

plates other than those provided or speciﬁed by Gastite are strictly prohibited.

e extent of protection shall be deﬁned as follows:

a) At concealed support points and points of penetration less than 2 inches from any edge of a stud, joist, plate, etc., a listed

striker plate is required at the area of support to provide coverage for 5 inches from the point of restraint in one or both

directions (Fig. 4-44).

Fig. 4-41 Fig. 4-42

Fig. 4-40

Fig. 4-43

Note: Steel Stud

Construction –

Knock teeth oﬀ striker

plate for steel stud

construction.

Fig. 4-39

NON-METALLIC

HOSE

PROTECTION

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

b) At concealed support points and points of penetration 2 to 3 inches from any edge of a stud, joist plate, etc., listed 1/4

striker plates are required to provide protection throughout the area of penetration (Fig. 4-45).

c) When multiple runs are located between the same

two studs such as manifold runs or meter bank

runs, a 6" x 17" panel type striker plate may be used

as an alternate to individual striker plates for each

tubing run (Fig. 4-47).

d) When installed inside insulated exterior walls,

tubing shall be routed between the face of the

insulation and the interior wall surface (Fig. 4-48).

If rigid insulation is used, enough space must be

provided for movement of the tubing (see Section

4.4) or heavy wall conduit must run over the length of

the restrained area.

e) At points of penetration greater than 3 inches from

any edge of stud, joist, plate, etc., no protection is

required.

f) Tubing routed horizontally through structural members

shall be protected from puncture threats with the

appropriate shielding material (Figure 4-46 and 4-47).

At penetration points, listed plates of the appropriate

size shall be utilized Tubing between constraints that are less than 24 inches apart and meeting the criteria requiring full

striker plates, shall be additionally protected by Steel Conduit (Fig. 4-48).

g) Gastite®/FlashShield™ CSST greater than 1" nominal diameter installed within a concealed hollow wall cavity of 2"x4"

construction shall be protected along the entire concealed run length with Steel Conduit (see Section 4.4.2).

h) e width of installed striker plates shall be at least 1.5 times the outside diameter of the Gastite®/FlashShield™ CSST.

Fig. 4-44 Fig. 4-45

Fig. 4-46

Fig. 4-48

Fig. 4-47

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.4.2 STEEL CONDUIT

At termination points not covered by the ANSI standard,

ﬂoppy steel conduit (heavy wall) shall be installed as

additional protection (Fig. 4-49 and 4-50). Gastite®/

FlashShield™ requires a minimum of six inches of conduit

and supplies precut conduit in one foot lengths. Floppy Steel

conduit should not be used in place of hardened steel striker

plates when passing through structural members.

4.5 METER

e gas piping for the meter stub-out is usually subject to local

requirements such as size, location, and material type. It is always

important to conﬁrm local code and utility requirements. Gastite®/FlashShield

recommends the use of 1/2" CSST or greater as the minimum trunk line size. Size

3/8" should not be used for trunk lines. is will allow for the addition of future gas

appliances and minimize the opportunity for whistling.

a) Unsupported Meters – Meters that depend on

the service supply line and/or the house piping

for support shall not be directly connected to the

Gastite®/FlashShield™ CSST. As shown in the

Figures 4-51 and 4-52, a rigid connection point is

created using a Gastite®/FlashShield™ termination

ﬁtting, Gastite® designed stub-out or rigid pipe

components.

b) Self-Supported Meters – Meters that are

independently supported with a bracket can be

directly connected to the Gastite®/FlashShield™

CSST as shown in Figure 4-53. If practical, direct

Gastite®/FlashShield™ CSST connections shall

include a 3 to 6 inch loop of tubing (as shown)

to accommodate diﬀerential settling and meter

movement. No mechanical protection of the tubing

is required for outdoor meter connections; however,

ensure that the local utility supports this practice

as some utilities have regulations specifying meter

attachments.

c) Electrical bonding connections made at the gas meter

must comply with Section 4.10 of this guide.

Fig. 4-49

Fig. 4-50

Fig. 4-51 Fig. 4-52

Fig. 4-53

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.6 APPLIANCE

4.6.1 MOVEABLE APPLIANCE

a) For use with movable appliances, Gastite®/FlashShield™ must be rigidly terminated before the appliance connection.

is ﬁxed connection point allows for the attachment of ﬂexible appliance connectors, drip legs (if required), and shut

oﬀ valves to moveable appliances such as dryers and ranges (Figures 4-54 and 4-55)

b) e Appliance Stub-Out is mounted to a stud face (Fig. 4-56) and provides a ﬁxed point to which a Gastite®/

FlashShield™ mechanical ﬁtting may be attached. e design of this stub-out ensures that the ﬂexible tubing is routed

away from any points of constraint that may subject the tubing to potential puncture threats.

c) e Straight Stub provides a ﬁxed point for the Gastite®/FlashShield™ mechanical ﬁtting and a stable platform for service

meter connections. e Straight Stub may be mounted to the face of a stud (Fig. 4-57) or mounted to an optional

Stub Bracket with supplied self-drilling metal screws (Fig. 4-58). e optional bracket is designed to span typical stud

construction. e compact design of the straight stub allows for multiple stub-outs within the stud cavity.

e Straight Stub may also be used to pass through joist and wall constructions (Fig. 4-59). It is important to follow all

requirements for sleeving when passing through masonry construction.

Fig. 4-54 Fig. 4-55

Fig. 4-56 Fig. 4-57 Fig. 4-58 Fig. 4-59

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.6.2 DIRECT CONNECTION – NON-MOVEABLE APPLIANCES

Gastite®/FlashShield™ CSST may be connected directly to non-movable

appliances such as water heaters, furnaces, boilers and island cook-tops

(Figure 4-60) without the installation of a termination outlet or ﬂexible

appliance connector. All local codes requiring drip legs and shut-oﬀ

valves must be observed. Drip legs and shut-oﬀ valves must be securely

mounted. Additionally, Gastite®/FlashShield™ should not penetrate

metallic cabinet of appliance.

When appliances such as water heaters, furnaces or boilers

have metallic vents which extend beyond or protrude through

the roof physical contact between the Gastite® CSST and the

appliance cabinet or vent is prohibited. Gastite recommends that all

continuous metallic systems be bonded and grounded.

Physical contact with appliance cabinets that have metallic

vents which extend beyond or protrude through the roof is

acceptable.

4.6.3 GAS CONVENIENCE OUTLET

a) Barbecue Grills – Movable grills shall be connected using an approved outdoor appliance connector which shall be attached

to the CSST system either at a termination ﬁtting or a quick disconnect device as shown in the ﬁgure (Fig. 4-61).

b) Permanently mounted grills located on decks (Fig. 4-62) shall be connected to the CSST system as shown in the ﬁgure

and in accordance with the manufacturer’s instructions. e outdoor portion of the CSST run shall be supported against

the side of any of the inside deck joists.

Fig. 4-61 Fig. 4-62

NOTE: STRIKE PROTECTION

(FLOPPY) NOT SHOWN FOR CLARITY.

Fig. 4-60

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.6.4 SPECIAL APPLICATIONS

a) Roof Mounted Equipment (Fig. 4-63) – Gastite®/FlashShield™ Flexible Gas Piping can be used in an outdoor rooftop

application. When used in this application, the CSST is to be supported oﬀ the surface of the rooﬁng material. is

support allows for adequate drainage on the roof, product protection from snow, and is commonly required by code.

When Gastite®/FlashShield™ Flexible Gas Piping is installed in an outdoor rooftop application the following

requirements must be met:

1. Support materials will be selected to provide an adequate anchoring point that addresses the lightweight ﬂexible

nature of Gastite®/FlashShield™. is can be accomplished through either the weight of the support or adhering the

support to the roof materials. e support materials must also be selected to be non-damaging to the rooﬁng material.

(Check with roof material manufacturer for approved adhering methods and non-damaging materials/installations.)

2. It is also important to select the appropriate metal pipe clamps or straps to ﬁrmly aﬃx the tubing to the support.

3. e supports shall lift the tubing at least 3" from the surface of the roof, higher as required by code or local conditions.

(Check with local code oﬃcials to determine height requirements as deﬁned by the local code or conditions).

4. Support spacing will follow the recommendations as outlined in Table 4-5 below.

TABLE 4-5

ROOF TOP SUPPORTING SPACE

GASTITE®/

FLASHSHIELD™

SIZE

EHD MAX SUPPORT SPACING

3/8" 13 6 Feet

1/2" 19 6 Feet

3/4" 23 6 Feet

1" 31 8 Feet

1-1/4" 37 8 Feet

1-1/2" 48 8 Feet

2" 60 8 Feet

Gastite®/FlashShield™ shall penetrate rooﬁng in the manner and using the materials as deﬁned by the rooﬁng manufacturer

in order to maintain the manufacturer’s warranty (Figures 4-64 and 4-65). When passing through the deck Gastite®/

FlashShield™ must be properly terminated or pass through an appropriate ﬁxed conduit (Figures 4-66 and 4-67). NOTE:

As rooﬁng manufacturers generally have proprietary penetration systems and require trained installers, it is extremely

important to obtain approval and instructions from the rooﬁng manufacturer prior to performing any work. Failure to do

so can result in voiding the rooﬁng warranty.

Lengths of Gastite®/FlashShield™

CSST which run vertically up

the side of the building shall be

protected in accordance with the

General Provisions section of

these guidelines, Section 4.3.6.

Fig. 4-63

Fig. 4-64 Fig. 4-65

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Fig. 4-66

Fig. 4-67

a) Pad Mounted Equipment (Fig. 4-68) – Moveable gas appliances on concrete pads or blocks, such as heat pumps, air

conditioners, pool heaters and NGV refueling systems, shall be connected to the Gastite®/FlashShield™ CSST system at

a termination ﬁtting using either rigid pipe or an approved outdoor appliance connector.

b) Gas Packs and Other Non-Moveable Equipment (Fig. 4-69) – Can be connected to the Gastite®/FlashShield™ CSST

system either through a terminating ﬁtting and rigid pipe or directly with Gastite®/FlashShield™ CSST connected to the

appliance shut-oﬀ valve.

Fig. 4-68 Fig. 4-69

c) Gas Lamps – Permanently mounted lights located on

decks shall be connected to the Gastite®/FlashShield™

CSST system in the same fashion as permanently

mounted grills as shown in the ﬁgure and in accordance

with the manufacturers instructions.

d) Yard Mounted Lights – Shall be connected to the

Gastite®/FlashShield™ CSST system as shown in Figure

4-70. All Gastite®/FlashShield™ CSST installed below

grade shall be installed in accordance with Section 4.9.

Fig. 4-70

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

e) Infrared heaters (Fig. 4-71) that are

solidly mounted to ceilings and walls of

structures may be connected to the Gastite®/

FlashShield™ CSST system as shown in the

ﬁgures below and in accordance with the

manufacturers instructions. High Density

infrared heaters generally fall into this

category. Gastite®/FlashShield™ CSST should

be mounted to a ﬁxed point and not on the

end involved with the typical expansion and

contraction associated with these heaters.

Infrared heaters that are mounted to allow

movement of the heater must use an appropriate

appliance/ﬂex connector between the heater and the properly terminated Gastite®/FlashShield™. Low Density heaters,

tube heaters and heaters hung from chains fall into this category.

Heaters and installations must comply with ANSI Z83.6, “Standard for gas ﬁred infrared heaters.”

f) Gastite® CSST shall not penetrate the metallic enclosure of a ﬁreplace (Fig. 4-72). e Fireplace Stubout (ANGLE

STUB0110) may be used to terminate the CSST outside the enclosure. While other listed installation practices are

acceptable this method is preferred to prevent damage, that can be caused by the ﬁreplace enclosure, to the CSST.

g) FlashShield™ CSST shall not be directly routed into a metallic gas appliance enclosure utilizing a metallic vent that

penetrates a rooﬂine. e CSST connection shall be made outside of the metallic gas appliance enclosure to a section of

rigid metallic pipe, stub-out, or termination ﬁttings. Where it is necessary to install FlashShield™ CSST through the sheet

metal enclosure of a ﬁreplace that does not utilize a metallic vent which penetrates a rooﬂine, the tubing shall be routed and

supported to permanently prevent physical contact with any portion of the metallic enclosure. To avoid contact with the

enclosure at the point of penetration a non-metallic grommet or non-metallic tube shall be used (Fig. 4-73). Otherwise, an

angle stub or steel pipe components must be used with the CSST terminated outside the enclosure (Fig. 4-72).

CSST and Gastite®/FlashShield™ brass ﬁttings should not be used inside the ﬁrebox for log lighters/gas wands or in any

ﬁrebox where wood logs will be burned due to the potential for physical harm to the tubing.

Fig. 4-71

Fig. 4-72

Angle Stub-Out Example

Fig. 4-73

Non-Metallic Grommet

Wall Vented Example

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

e Angle Stub is designed to create a secure mounting point or

stub-out for the transition from Gastite®/FlashShield™ CSST to

log-lighters, gas logs, or ﬁrebox insert’s controls. Refer to Figure

4-77 below for Angle Stub Installation.

e Angle Stub shall not be connected in such a way that

the log-lighter, gas log, or other components angle out of the

ﬁreplace. To correct for the insertion angle into the ﬁrebox,

metal shims such as fender washers can be used. (See the proper

and improper installation Fig. 4-74)

Gastite®/FlashShield™ Mechanical Fittings are approved to be concealed and can be connected directly to a valve

controlling gas ﬂow to a ﬁreplace appliance. e Gastite®/FlashShield™ CSST and valve connection can be installed behind

the wall, beneath the ﬂoor, hearth, or behind the brickwork of the ﬁreplace (Fig. 4-76).

Where it is necessary to install Gastite®/FlashShield™ through masonry materials in ﬁreplace construction, the plastic jacket

shall remain intact and the tubing should be routed through sleeving that is appropriate for the application. Sleeving is not

required through ceramic liners in decorative ﬁreplaces and heat generating ﬁreplaces.

Gastite®/FlashShield™ may not be run above the ﬂue within a masonry chimney.

In certain conﬁgurations corrugated tubing or ﬂexible appliance connectors feeding a ﬁreplace, ﬁrepit or gas log set can

whistle due to gas ﬂow velocity. Acoustics can usually be avoided by restricting Gastite®/FlashShield™ CSST sizes to the

maximum capacity as shown in Table 4-6 below.

TABLE 4-6

FIREPLACE/FIRE PIT

GASTITE®/

FLASHSHIELD™ SIZE EHD BTUH

1/2" 19 45,000

3/4" 23 80,000

1" 31 125,000

1-1/4" 37 195,000

1-1/2" 48 285,000

2" 60 475,000

Fig. 4-74

Improper Angle Stub

Installation

Proper Angle Stub

Installation

Fig. 4-75 Fig. 4-76

Note: Strike Protection

(Floppy) not shown for clarity.

Fig. 4-77

ANGLE STUB-OUT (FIG. 4-77)

1) Attach XR3 female ﬁtting to short end of Stub-Out.

2) Insert long end of Angle Stub-Out through metal insert knockout.

3) Secure Stub-Out utilizing sheet metal screws at the four mounting points.

4) Insert CSST into the female ﬁtting and complete ﬁtting assembly.

5) Refer to Section 4.6.4 (f).

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4.7 MANIFOLD

Manifolds are installed where multiple runs are made from a common location in a parallel arrangement. e manifold

may be manufactured from a one-piece malleable iron or brass casting (Fig. 4-78), a welded fabrication of steel sub-

components or an assembly of approved, malleable iron tees and short nipples (Fig. 4-79). Manifolds must be rigidly

installed. is can be achieved through the use of a mounted manifold bracket or by rigidly piping into a non-movable

gas-piping component.

Depending on the location and available space, diﬀerent mounting arrangements are permitted. A manifold may be

mounted in any orientation on the surface of an interior wall, between open ﬂoor joists, in attic spaces, crawl spaces,

within a partition wall, or inside an enclosure. A manifold assembly without a regulator can be concealed.

e Gastite®/FlashShield™ CSST Capacity Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with

a larger number of bends and/or ﬁttings shall be increased by an equivalent length of tubing to the following equation:

L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends. Each port of a

manifold can be taken as an additional ﬁtting. For example: the tube running from the last port of a 3-port manifold

should have 3.9 feet (3 ports/ﬁttings x 1.3) added to the run length for the purpose of sizing. is method is applicable for

all manifolds whose ports are equal or greater in size than the pipe connected to the corresponding port.

e installation of manifold assemblies using a pounds-to-inches regulator must be in accordance with all local codes, and

the following guidelines:

a) A manifold assembly directly integrating a pounds-to-inches regulator shall be installed in an accessible location so that

the regulator can be inspected, maintained and serviced if repair or replacement is required.

b) For manifold systems that use a pounds-to-inches regulator installed behind an access panel, all tubing penetrations in

the cabinet should be sealed, caulked or grommeted. e cabinet must be ventilated through the panel/door and not

into a wall space.

c) Open face cabinets (Fig. 4-80), which open on to the normal room environment, may be

utilized without the need for ventilation or penetration sealing requirements.

Fig. 4-78

Fig. 4-79

Fig. 4-80

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4.8 PRESSURE REGULATOR

4.8.1 INTRODUCTION (FIG. 4-81)

A Gastite®/FlashShield™ CSST system using line gas pressures above the maximum appliance input rating shall use a

regulator to lower the downstream appliance supply pressure to 1/2 PSI, or less. e regulator shall have a lock-up feature

that will limit the downstream pressure to 1/2 PSI. Line gas pressures at or below the maximum appliance input rating

does do not require the use of a line regulator.

A Line Gas Regulator is deﬁned as a pressure regulator placed in a gas line between the service regulator and the appliance

regulator. Regulators supplied by Gastite Division are designed to supply the highest performance as Line Gas Regulators

and feature precise regulating control from full ﬂow down to pilot ﬂows.

Regulators must be rigidly installed. is can be achieved by rigidly mounting or piping into a rigid gas-piping

component.

Fig. 4-81

4.8.2 SIZING INSTRUCTIONS

Line Pressure Regulator Selection (Tables 4-7 through 4-10).

Line pressure regulators are typically used in a 2 or 5 PSI gas piping installation to reduce supply pressure to the appliance

within required operating ranges (typically 4"WC - 8"WC natural gas or 10"WC - 11"WC LP gas).

Regulators Supplied by Gastite Division:

1) For natural gas, the regulator outlet pressure is set to 8"WC and the appliance runs are sized with a 3"WC pressure drop.

is will allow for 5"WC inlet pressure at the appliance.

2) For propane gas, the regulator outlet pressure is set to 11"WC and the appliance runs are sized with a 0.5"WC drop.

is will allow for a 10.5"WC inlet pressure at the appliance.

To select the correct regulator for pressure regulation, the following information must be established:

• Available inlet pressure range at the regulator inlet.

• Desired outlet pressure.

• Total maximum ﬂow rate vs. regulator model number (Table 4-7 through Table 4-9).

• Largest single appliance ﬂow rate vs. regulator model number (Table 4-10).

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

REGULATOR CAPACITY TABLES

TABLE 4-7

REGULATOR CAPACITY FOR NATURAL GAS WITH AN 8"WC OUTLET PRESSURE (CAPACITIES – 0.64 SP GR GAS EXPRESSED IN CFH)

Model Number Outlet Pressure Operating Inlet Pressure

1/2 PSI 3/4 PSI 1 PSI 1-1/2 PSI 2 PSI

T325-3-44/Reg8-300 8"WC 145 200 250 250 250

T325-5-44/Reg8-600 8"WC 335 475 550 550 550

T325-7AL-NG01 8"WC 690 970 1,250 1,250 1,250

T325-3L48 (OPD) 8"WC 160 200 200 200 200

T325-5AL600 (OPD) 8"WC 345 425 425 425 425

T325-7L-210D (OPD) 8"WC 650 900 1,250 1,250 1,250

30051-NG (PF# 31051) 8"WC 306 442 552 710 785

30052-NG (PF# 31052) 8"WC 369 552 665 888 946

30053-NG (PF# 31053) 8"WC 495 718 893 1,154 1,270

30153-NG (PF# 31153) 8"WC 2,071 2,344 3,735 4,087 5,311

Capacity value for most typical 2 PSI parallel systems when trunk run is sized to deliver 1 PSI to regulator inlet.

TABLE 4-8

REGULATOR CAPACITY FOR NATURAL GAS WITH AN 11"WC OUTLET PRESSURE (CAPACITIES – 0.64 SP GR GAS EXPRESSED IN CFH)

Model Number Outlet Pressure Operating Inlet Pressure

1/2 PSI 3/4 PSI 1 PSI 1-1/2 PSI 2 PSI

T325-3-44P/Reg11-300 11"WC 93 172 225 250 250

T325-5-44P/Reg11-600 11"WC 211 391 511 550 550

T325-7AL-NG01 11"WC 441 816 1,250 1,250 1,250

T325-3L48* (OPD) 11"WC 120 200 200 200 200

T325-5AL600* (OPD) 11"WC 260 425 425 425 425

T325-7L-210D* (OPD) 11"WC 490 821 1,250 1,250 1,250

30051-NG* (PF# 31051*) 11"WC 218 389 511 681 788

30052-LP (PF# 31052) 11"WC 263 487 616 852 950

30053-NG* (PF# 31053*) 11"WC 353 633 826 1,108 1,274

30153-NG* (PF# 31153*) 11"WC 1,476 2,241 3,457 3,920 5,330

Capacity value for most typical 2 PSI parallel systems when trunk run is sized to deliver 1 PSI to regulator inlet.

*Regulator requires in-ﬁeld adjustment to obtain output pressure of 11"

TABLE 4-9

REGULATOR CAPACITY FOR PROPANE WITH AN 11"WC OUTLET PRESSURE (CAPACITIES – 1.52 SP GR GAS EXPRESSED IN kBTUh)

Model Number Outlet Pressure Operating Inlet Pressure

1/2 PSI 3/4 PSI 1 PSI 1-1/2 PSI 2 PSI

T325-3-44P/Reg11-300 11"WC 147 270 355 395 395

T325-5-44P/Reg11-600 11"WC 335 620 810 870 870

T325-7AL-NG01 11"WC 700 1,290 1,811 1,811 1,811

T325-3L48* (OPD) 11"WC 190 315 315 315 315

T325-5AL600* (OPD) 11"WC 410 670 670 670 670

T 325-7L-210D* (OPD) 11"WC 775 1,300 2,012 2,012 2,012

30051-NG* (PF# 31051*) 11"WC 344 615 807 1,076 1,245

30052-LP (PF# 31052) 11"WC 416 769 973 1,346 1,501

30053-NG* (PF# 31053*) 11"WC 558 1,000 1,305 1,751 2,013

30153-NG* (PF# 31153*) 11"WC 2,332 3,541 5,462 6,194 8,421

Capacity value for most typical 2 PSI parallel systems when trunk run is sized to deliver 1 PSI to regulator inlet.

*Regulator requires in-ﬁeld adjustment to obtain output pressure of 11"

TABLE 4-10

LARGEST SINGLE APPLIANCE SERVED BY REGULATOR

Regulator Natural Gas (CFH) Propane (kBTUh)

0.64 SG gas 1.52 SG gas

T325-3-X/RegX-300 140 215

T325-5-XP/RegX-600 300 460

T325-7L-44 900 1,380

T325-3L48 (OPD) 200 305

T325-5AL600 (OPD) 425 650

T 325-7L-210D (OPD) 900 1,380

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.8.3 INSTALLATION

a) e regulator shall be installed in an accessible location with an approved shut-oﬀ valve and drip leg on the inlet side

and a union (if required by code) on the outlet side so that it may be inspected, maintained and serviced if repair or

replacement is required. e regulator must be installed with gas ﬂow as indicated by the arrow on the casting.

b) Shut-oﬀ valves should be opened and closed slowly. A rapidly opened or closed valve can shock the regulator causing

abnormal behavior.

c) e regulator is suitable for multi-poise mounting. When using a vent-limiting oriﬁce however, the regulator must be

mounted in a horizontal upright position.

d) e vent-limiting oriﬁce (Fig. 4-82) is a fail-safe device that permits

free air movement above the diaphragm during normal operation. In

the unlikely event of a diaphragm rupture, the vent limiting oriﬁce

will limit gas escapement to 1.0 CFH natural gas at 2 PSI and 0.65

CFH LP at 2 PSI. Both values are below the ANSI standard of 2.5

CFH. Note: e vent-limiting oriﬁce does not allow gas to escape to

the environment during operation.

e) Do not leak test the vent oriﬁce with liquid leak test solution. is action will contaminate the internal check ball

mechanism or plug the breathing hole resulting in erratic regulator performance

f) When using a vent-limiting oriﬁce, the maximum inlet pressure is 2 PSI for Propane and 5 PSI for Natural Gas.

g) When using a vent line, the line must be at least the same size as the regulator vent connection for all runs up to 30

feet and shall be increased one pipe size over its entirety for every additional 30 feet that the vent runs. Vent lines may

be constructed of any approved fuel gas piping, including Gastite®/FlashShield™ CSST. e vent shall be designed to

prevent entry of water, insects or other foreign materials that could cause blockage of the line. Do not vent to appliance

ﬂue, pilot light or building exhaust system.

h) e regulators supplied by Gastite Division have a temperature range limit of -40 to

240 degrees F. e lower temperature limit and rust proof construction design enables

the regulator to be used for outdoor installations. To minimize the potential for

moisture condensation and freezing problems in or around the vent port, the vent-

limiting oriﬁce must be removed for outdoor installations.

OUTDOOR MOUNTING OPTIONS: (FIGURES 4-83 THROUGH 4-85)

e regulator may be mounted upside down with

the open vent port facing down. Consideration

must be taken to ensure there is adequate clearance

for snow buildup.

e regulator may be mounted horizontally, with

a vent tube installed in the venting port. e end

of the tube must be facing downward, and should

be designed to prevent water and foreign material

from causing a blockage. Another alternative is

an outdoor plastic vent protector designed for the

regulator.

Fig. 4-82

Fig. 4-83

Fig. 4-84 Fig. 4-85

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.8.4 PERFORMANCE

a) A performance test should be conducted while operating all appliances at full load. is will test if adequate pressure

is reaching each appliance under full-load conditions. To accomplish this, measure the line pressure at the appliance

connection while operating the appliance.

b) e inlet pressure for typical gas appliances under full load conditions should be equal to but not exceeding the

appliance’s recommended inlet pressure range. If these pressure ranges cannot be obtained, a slight adjustment to the

service regulator or the pounds-to-inches regulator may be necessary to increase line pressure.

4.8.5 REGULATOR OUTLET PRESSURE ADJUSTMENT

a) Adjustment can be accomplished by ﬁrst removing the regulator seal cap to expose the adjusting screw. Turning the

screw clockwise will increase outlet pressure, turning it counter-clockwise will decrease pressure.

b) If spring adjustment will not produce the desired outlet pressure, check to make sure the main supply pressure is

adequate If the main supply pressure is adequate, consult factory for other line-regulator options. Do not continue to

turn regulator adjusting screw clockwise if the outlet pressure readings do not continue to increase. is may result in

over-ﬁring due to loss of pressure control, should there be a subsequent increase in inlet pressure.

c) e line regulators can be adjusted with an outlet pressure ranging between 7 and 11 inches water column. e regulator

must be adjusted according to the manufacturers recommended procedure. A pressure gauge mounted just downstream

of the regulator can monitor the set pressure under various loads.

4.8.6 OVER-PRESSURIZATION PROTECTION

Downstream over-pressure protection must be provided in any gas piping installation where a line-pressure regulator is

utilized for pressures in excess of 2 PSI to supply appliances rated for 1/2 PSI or less inlet pressure. Special line regulators

of suitable control and capacity must be installed in place of the standard line regulator. is regulator contains an integral

over-pressure protection device (OPD) (Fig. 4-86). is special regulator with OPD must be assembled and listed by the

manufacturer in accordance with Z21.80, “Standard for line pressure regulators." Refer to Tables 4-7 through 4-9 for OPD

capacities and sizing.

NOTE: When using regulators other than those speciﬁed by Gastite Division for use with the Gastite®/FlashShield™ system, careful

consideration must be given to the regulator performance characteristics such as required inlet pressure, ﬂow capacity, the pressure drop

through the regulator and available outlet pressure.

Fig. 4-86

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.9 UNDERGROUND INSTALLATIONS

a) Gastite®/FlashShield™ CSST shall not be buried directly in the ground or directly embedded in concrete (e.g. slab

on grade construction, patio slabs, foundations and walkways). When it is necessary to bury or embed Gastite®/

FlashShield™ CSST, the tubing shall be routed inside a non-metallic, watertight conduit that has an inside diameter at

least 1/2 inch larger than the O.D. of the tubing (Fig. 4-87). For ends of the conduit installed outdoors, the conduit

shall be sealed at any exposed end to prevent water from entering.

b) Venting of the conduit has typically been required because the use of conventional materials such as rigid pipe has

usually resulted in some form of connection or union within the conduit. Unlike rigid pipe however, Gastite®/

FlashShield™ CSST is continuous with only one ﬁtting at each end of the run, and no ﬁttings inside the conduit. As

a result, the possibility of gas build-up due to ﬁtting leaks has been eliminated. erefore, Gastite Division does not

require the sleeving to be vented to the outside of the structure.

If, however, venting is still required, Figure 4-88 below depicts gas piping installed within plastic sleeving that is vented

to the outdoors. Other possible venting routes, such as the attic and roof, may also be considered but must be reviewed

with the local administrative authority, and must prevent the entry of water and foreign objects.

For ends of Gastite®/FlashShield™ CSST exiting the plastic sleeving, a termination ﬁtting (XR3TRM-SIZE-NF)

threaded into an end “plug”, can be used to provide a stable platform for attachment (Fig. 4-89).

Fig. 4-87 Fig. 4-88

Fig. 4-89

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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017

4.10 ELECTRICAL BONDING OF GASTITE®/FLASHSHIELD™ CSST

a) Unlike Gastite®, there are no additional bonding requirements for FlashShield™ imposed by the manufacturer’s

installation instructions. FlashShield™ is to be bonded in accordance with the National Electrical Code NFPA 70 Article

250.104 and Canadian Electrical Code, CSA-C22.1, in the same manner as the minimum requirements for rigid metal

piping. However, installers must always adhere to any local requirements that may conﬂict with these instructions.

b) Direct bonding of Gastite yellow CSST is required for all gas-piping systems incorporating Gastite CSST whether or not

the connected gas equipment is electrically powered. is requirement is for single-family and multi-family buildings.

A person knowledgeable in electrical system design, the local electrical code and these requirements should specify the

bonding for commercial applications.

Gastite yellow CSST installed inside or attached to a building shall be electrically continuous and direct bonded to the

electrical ground system of the structure in which it is installed. e gas piping system shall be considered to be direct-

bonded when installed in accordance with the following:

• A single bond clamp attachment to rigid pipe or rigid component at any point within the gas piping system

- Bond clamp attachment downstream of individual gas meter or 2nd stage regulator for propane systems, and in

accessible location

- Metallic contact is required (remove paint or plating on steel pipe)

- Bonding clamp listed to UL 467

Fig. 4-90

• Bonding conductor is #6 AWG copper (minimum) or equivalent, and not exceeding 75 feet in length

- e shortest practical bond wire length will improve the eﬀectiveness of the direct bond

• e bonding conductor is permanently and directly connected to the electrical service grounding electrode system of

the premises. is connection can be made at either:

- Bonding buss

- Grounding electrode conductor

- Grounding electrode

• Any additional grounding electrodes used shall be bonded to the electrical service grounding electrode system

• Direct bonding to be performed by a person qualiﬁed to do so per local ordinances

• e bonding conductor shall be installed and protected in accordance with:

- National Electrical Code, NFPA 70, (NEC)

- Canadian Electrical Code, CSA-C22.1, (CEC)

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

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SECTION 5: INSPECTION, REPAIR & REPLACEMENT / SEPTEMBER 2017

SECTION 5.0 INSPECTION, REPAIR & REPLACEMENT

5.1 MINIMUM INSPECTION REQUIREMENTS

GASTITE®/FLASHSHIELD™ INSTALLATION CHECKLIST

Date: Elevated Pressure: Yes No

Contractor: Comments:

Address:

Qualiﬁed installer with Certiﬁcation Card

Components from Gastite®

Strike protection

System Sizing

Connected to ﬁxed appliance only; Flexible connector for moveable appliances

Regulator isolated or removed for pressure test

Regulator horizontal and upright when using vent limiter

Regulator installed in an accessible location with shut-oﬀ valve and drip leg mounted ahead of regulator

Protective jacket kept in place

Sleeved for underground and through masonry

Supported but not restricted

Bonded per Section 4.10.

Installation within a chase restrictions per Section 4.3.9.

Physical separation per Sections 4.3.1 and 4.3.2

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SECTION 5: INSPECTION, REPAIR & REPLACEMENT / SEPTEMBER 2017

5.2 INSTALLATION CHECKLIST DESCRIPTION

Corrugated Stainless Steel Tubing (CSST) has been design certiﬁed by the Canadian Standards Association since 1990 for

use as a fuel gas piping system. Gastite®/FlashShield™ CSST has been tested per ANSI LC1/CSA 6.26 as required for ap-

proval and as an approved gas piping material in the National Fuel Gas Code-NFPA 54 & 58, the International Fuel Gas

Code-ICC, and with the Uniform Plumbing Code-IAPMO, and Natural Gas & Propane installation code B149.1.

APPROVAL: CONDITIONS AND REQUIREMENTS

A ﬂexible gas piping system using Gastite®/FlashShield™ CSST must be installed in accordance with all local building

codes and the manufacturer’s instructions. e following checklist is designed to assist the local administrative authority to

perform an inspection of a fuel gas piping system using corrugated stainless steel tubing.

1) Gastite®/FlashShield™ ﬂexible gas piping may only be installed by a qualiﬁed installer who has successfully completed

the manufacturer's certiﬁcation training program. A manufacturer’s certiﬁcation card is required to purchase and install

Gastite®/FlashShield™ ﬂexible gas piping.

2) Gastite®/FlashShield™ CSST routed in a location which is concealed, constrained and within 3 inches of a potential

threat must be protected against damage using protection devices listed in the manufacturer’s Design and Installation

Guide.

3) Gastite®/FlashShield™ CSST should not be connected to moveable appliances. Connections to moveable appliances

such as ranges and clothes dryers should be accomplished with a ﬂexible appliance connector.

4) Regulators are suitable for multi-poise mounting. When using a vent-limiting device however, the regulator must be

mounted in a horizontal upright position.

5) Gastite® tubing shall not be installed within a chase and/or enclosure that includes a metallic appliance vent and/or a

metallic chimney line that protrudes through and/or past the roof.

6) When installed outdoors, the external jacket shall remain intact as much as possible. Exposed portions of the stainless

steel tubing or aluminum mesh shall be wrapped to provide protection from corrosive threats.

7) For installations buried underground, under concrete/asphalt or embedded in concrete, Gastite®/FlashShield™ CSST

must be routed in a non-metallic watertight conduit which has an inside diameter at least 1/2 in. larger than the

outside diameter of the tubing. Under concrete/asphalt slab, sleeved CSST must be buried in accordance with all local

codes. No mechanical joints are permitted within the conduit.

8) Installation must be properly supported to not only keep the job professional and organized but also to prevent excess

strain on the bends and ﬁttings. Supports installed in addition to the practices outlined by Gastite Division, restricts

the tubing and increases susceptibility to strike damage.

9) Gas piping systems must be properly bonded to the structure's electrical service. A qualiﬁed professional following the

NEC approved methods as outlined in Section 4.10 shall perform the bonding installation.

10) Gastite® CSST must be physically separated from other continuous metallic systems in accordance with Section 4.3 of

this guide.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

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SECTION 5: INSPECTION, REPAIR & REPLACEMENT / SEPTEMBER 2017

5.3 REPAIR OF DAMAGED CSST

5.3.1 DETERMINE DAMAGE

Crushed, dented or kinked tubing may result in restricted ﬂow conditions. Use the following guidelines to determine the

severity of damage and whether repair or replacement is necessary.

a) Gastite®/FlashShield™ CSST gas tubing must be repaired if damaged by puncture of any kind, e.g. nails, screws, drill bits, etc.

b) No repairs or replacement of the tubing is necessary if the Gastite®/FlashShield™ CSST tubing is only slightly dented due

to impact or crushing and the overall crush depth is less than 1/3 the diameter of the tubing. Minimal ﬂow reduction will

occur at this limited damage level.

c) Repair or replacement is necessary if the overall crush depth is greater than 1/3 the diameter of the tubing. Restricted ﬂow

may occur at this damage level.

d) Gastite®/FlashShield™ CSST tubing bent beyond its minimum bend radius so that a crease or kink remains must be

repaired. Restricted ﬂow may occur at this damage level.

5.3.2 METHOD OF REPAIR

A line splice can be made, but if the tubing run is short and easily accessible, the preferred repair method is to replace the

entire length. Often, a tubing run can be replaced faster than repairing the damaged section. e Gastite®/FlashShield™

mechanical joint ﬁttings can be removed and easily re-attached. is is the preferred method because it does not add any

additional ﬁtting joints to the system.

Where repairs or replacements involve only the Gastite®/FlashShield™ CSST, the tubing can be joined with standard pipe

couplings or Gastite®/FlashShield™ CSST coupling (Fig. 5-1).

Where repairs or replacements involve CSST systems of diﬀerent manufacturers, the systems can be joined through standard

pipe couplings and each manufacturer’s recommended CSST ﬁtting (Fig. 5-2).

5.3.3 FLASHSHIELD™ JACKET REPAIR

Scuﬃng, scraping, or tearing of the outer polymer jacket layer may occur during installation. Within limits this condition

will not aﬀect the performance of FlashShield™ CSST as long as the middle layer (metallic shield) and the bottom layer

(semi-conductive polyethylene) remain in normal condition.

If a tear in the outer jacket is greater than 1/2" in length, Gastite recommends wrapping the tear area with electrical tape

or self-bonding silicone tape, to provide continued protection to the metal shield layer. If the metal shield layer tears for a

length great than 1/2", the aﬀected area must be cut out and replaced using appropriate methods. If the aﬀected area (of

greater than 1/2" metal shield tear length) cannot be cut out and replaced, the FlashShield™ CSST system shall be treated

like a yellow Gastite CSST system with regard to Gastite yellow CSST isolation/separation requirements (sec. 4.3), and

direct-bonding (sec. 4.10).

Fig. 5-1

Fig. 5-2

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SECTION 6: PRESSURE/LEAKAGE TESTING / SEPTEMBER 2017

SECTION 6.0 PRESSURE/LEAKAGE TESTING

6.1 GENERAL GUIDELINES FOR PRESSURE TESTING

a) e ﬁnal installation must be inspected and tested for leaks in accordance with the local/state codes. In the absence of

local codes, installation must be in accordance with the current edition of the National Fuel Gas Code, ANSI Z223.1/

NFPA-54 (USA), or Installation Codes CSA-B149.1 (Canada). Pressure testing must comply with these guidelines or

local codes. When local codes are more stringent, local codes must be followed.

b) Pressure testing must be performed during rough construction of the facility (before interior walls are ﬁnished). is will

permit a more complete inspection of the piping system during the pressure testing.

c) Do not connect appliances or pressurize with fuel gas until after the pressure test has been passed.

d) All gas outlets for appliance connections should be capped during pressure testing.

6.2 ELEVATED PRESSURE SYSTEMS

If an elevated pressure system requires a pressure test of 10 PSI or greater, the regulator must be removed or isolated prior

to pressure testing.

e test may be performed as a one-part test replacing the regulator with a suitable jumper pipe length for pressure testing

the entire system (Figures 6-1 and 6-2).

Or a two-part test may be performed as shown in Figure 6-3:

• e ﬁrst test is performed on the elevated pressure section, between the meter connection and the pounds-to-inches line

regulator.

• e second test is performed on the low-pressure section, between the outlet of the pounds-to-inches line regulator and the

gas appliance outlets.

• For a two-part test, it is important to remember to close both gas shut-oﬀ valves to avoid damage to the regulator.

• When opening the shut-oﬀ valves it is important to open them slowly. A quickly opened valve can shock the regulator and

cause abnormal regulator behavior.

Fig. 6-1 Fig. 6-2 Fig. 6-3

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SECTION 6: PRESSURE/LEAKAGE TESTING / SEPTEMBER 2017

6.3 APPLIANCE CONNECTION LEAKAGE CHECK PROCEDURE

After the ﬁnal pressure test, inspection and ﬁnal construction is complete (ﬁnished interior walls), connect the appliances

to the system. is connection can be made using an approved ﬂexible connector for movable appliances, or with Gastite®/

FlashShield™ CSST tubing or rigid black pipe for ﬁxed appliances. Turn the gas on at the meter and inspect for leakage

before operating the appliances.

a) Some leak check solutions may be corrosive. When leak checking the FlashShield™ system including (but not limited to)

the stainless steel tubing, brass ﬁttings and valves, stub-outs and connections made at the appliances, the leak check solu-

tion must be labeled as non-corrosive.

b) Before placing the appliances in operation, the tubing system should be purged. is displaces the air in the system with

fuel gas. Be sure to vent into a well-ventilated area.

NOTE: Leak test solutions may cause corrosion in some types of material in the gas tubing system, be sure to water

rinse after the test and thoroughly dry all contacted material. Also, the vent limiter should not be leak tested with a

liquid test solution. is will contaminate the internal ball check mechanism or plug the breathing hole, resulting in

erratic regulator operation.

NOTE: Near maximum allowable pressure test levels listed on the Gastite®/FlashShield™ speciﬁcation sheets (Sec-

tion 9.2), the tubing may move/distort which can aﬀect tubing supports. Once the pressure is released the tubing

should return to relatively the same position. Use caution when pressure testing and do not exceed the maximum

test pressure.

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SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

SECTION 7.0 SIZING TABLES & PRESSURE DROP CHARTS

FOR GASTITE® AND FLASHSHIELD™ CSST

7.1 CSST CAPACITY TABLES—NATURAL GAS

Table 7-1

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 0.5"WC

(based on a 0.60 speciﬁc gravity gas)

TUBING TUBING LENGTH (FT)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 47 32 26 22 20 18 15 14 13 12 11 10 10 8 8

19 1/2" 131 93 76 66 59 54 47 42 38 36 33 32 30 27 24

23 3/4" 251 183 152 133 120 110 97 87 80 75 70 67 63 57 53

31 1" 578 415 341 297 267 244 213 191 175 163 153 144 137 123 113

37 1-1/4" 871 620 508 441 396 362 314 282 258 239 224 211 201 180 164

48 1-1/2" 1834 1304 1068 926 830 759 658 590 539 500 468 442 419 376 343

60 2" 3874 2711 2199 1896 1690 1539 1327 1183 1077 994 928 874 827 737 671

TUBING TUBING LENGTH (FT)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

133/8"765544333333222

19 1/2" 21 19 17 15 14 12 11 11 10 10 9 9 8 8 8

23 3/4" 46 42 38 34 30 28 26 24 23 22 21 20 20 19 18

31 1" 98 88 81 70 63 58 54 50 48 45 43 42 40 39 37

37 1-1/4" 143 128 117 102 91 83 77 72 68 65 62 59 57 55 53

48 1-1/2" 298 267 244 212 190 173 161 150 142 135 129 123 118 114 110

60 2" 579 516 470 405 361 329 304 283 267 253 240 230 221 212 205

Table 7-2

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 1.0"WC

(based on a 0.60 speciﬁc gravity gas)

TUBING TUBING LENGTH (FT)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 67 47 38 32 29 26 22 20 18 17 15 15 14 12 11

19 1/2" 185 131 107 93 83 76 66 59 54 50 47 44 42 38 34

23 3/4" 345 251 209 183 165 152 133 120 110 103 97 92 87 79 72

31 1" 807 578 476 415 372 341 297 267 244 227 213 201 191 172 157

37 1-1/4" 1224 871 714 620 556 508 441 396 362 336 314 297 282 253 231

48 1-1/2" 2581 1834 1502 1304 1168 1068 926 830 759 703 658 621 590 528 483

60 2" 5538 3874 3144 2711 2416 2199 1896 1690 1539 1421 1327 1249 1183 1054 960

TUBING TUBING LENGTH (FT)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

133/8"1088765554444433

19 1/2" 30 27 24 21 19 17 16 15 14 14 13 12 12 11 11

23 3/4" 63 57 53 46 42 38 36 34 32 30 29 28 27 26 25

31 1" 137 123 113 98 88 81 75 70 67 63 60 58 56 54 52

37 -1/4" 201 180 164 143 128 117 109 102 96 91 87 83 80 77 75

48 1-1/2" 419 376 343 298 267 244 226 212 200 190 181 173 167 161 155

60 2" 827 737 671 579 516 470 434 405 381 361 344 329 315 304 293

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-3

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 1.5"WC

(based on a 0.60 speciﬁc gravity gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 83 58 47 40 36 32 28 25 22 21 19 18 17 15 14

19 1/2" 226 160 131 114 102 93 81 72 66 61 57 54 51 46 42

23 3/4" 416 303 251 220 199 183 160 145 133 124 116 110 105 95 87

31 1" 981 703 578 504 452 415 361 324 297 276 259 244 232 209 191

37 1-1/4" 1493 1063 871 757 678 620 539 483 441 409 383 362 344 308 282

48 1-1/2" 3152 2240 1834 1592 1426 1304 1131 1014 926 859 804 759 720 645 590

60 2" 6825 4775 3874 3340 2978 2711 2337 2083 1896 1752 1635 1539 1457 1299 1183

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 12 11 10 8 7 7 6 6 5 5 5 5 4 4 4

19 1/2" 37 33 30 26 23 21 20 18 17 17 16 15 15 14 14

23 3/4" 76 69 63 56 50 46 43 40 38 37 35 34 32 31 30

31 1" 167 150 137 119 107 98 91 86 81 77 73 70 68 65 63

37 1-1/4" 245 219 201 174 156 143 132 124 117 111 106 102 98 94 91

48 1-1/2" 512 459 419 364 326 298 276 259 244 232 221 212 204 196 190

60 2" 1020 909 827 713 636 579 535 499 470 445 424 405 389 374 361

Table 7-4

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 2.0"WC

(based on a 0.60 speciﬁc gravity gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 97 67 54 47 41 38 32 29 26 24 22 21 20 18 16

19 1/2" 260 185 151 131 118 107 93 83 76 71 66 62 59 53 49

23 3/4" 475 345 287 251 227 209 183 165 152 141 133 126 120 108 100

31 1" 1126 807 664 578 520 476 415 372 341 317 297 281 267 240 220

37 1-1/4" 1719 1224 1003 871 781 714 620 556 508 471 441 417 396 355 324

48 1-1/2" 3632 2581 2114 1834 1643 1502 1304 1168 1068 989 926 874 830 744 680

60 2" 7915 5538 4493 3874 3453 3144 2711 2416 2199 2031 1896 1785 1690 1507 1372

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 14 12 11 10 8 8 7 7 6 6 6 5 5 5 5

19 1/2" 42 38 34 30 27 24 23 21 20 19 18 17 17 16 16

23 3/4" 87 79 72 63 57 53 49 46 44 42 40 38 37 36 35

31 1" 191 172 157 137 123 113 105 98 93 88 84 81 78 75 73

37 1-1/4" 282 253 231 201 180 164 152 143 135 128 122 117 113 109 105

48 1-1/2" 590 528 483 419 376 343 318 298 281 267 255 244 235 226 219

60 2" 1183 1054 960 827 737 671 620 579 545 516 491 470 451 434 419

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 81

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-5

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 3.0"WC

Line Regulator Outlet (8 in.WC ) (based on a 0.60 speciﬁc gravity gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 120 83 67 58 51 47 40 36 32 30 28 26 25 22 20

19 1/2" 318 226 185 160 144 131 114 102 93 86 81 76 72 65 59

23 3/4" 572 416 345 303 273 251 220 199 183 170 160 152 145 130 120

31 1" 1368 981 807 703 631 578 504 452 415 385 361 341 324 291 267

37 1-1/4" 2097 1493 1224 1063 953 871 757 678 620 575 539 508 483 433 396

48 1-1/2" 4435 3152 2581 2240 2007 1834 1592 1426 1304 1208 1131 1068 1014 908 830

60 2" 9755 6825 5538 4775 4256 3874 3340 2978 2711 2504 2337 2199 2083 1857 1690

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 17 15 14 12 11 10 9 8 8 7 7 7 6 6 6

19 1/2" 51 46 42 37 33 30 28 26 24 23 22 21 20 20 19

23 3/4" 105 95 87 76 69 63 59 56 53 50 48 46 44 43 42

31 1" 232 209 191 167 150 137 127 119 113 107 102 98 95 91 88

37 1-1/4" 344 308 282 245 219 201 186 174 164 156 149 143 137 132 128

48 1-1/2" 720 645 590 512 459 419 389 364 343 326 311 298 286 276 267

60 2" 1457 1299 1183 1020 909 827 764 713 671 636 605 579 555 535 516

Table 7-6

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 4.0"WC

(based on a 0.60 speciﬁc gravity gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 140 97 78 67 60 54 47 41 38 35 32 30 29 25 23

19 1/2" 366 260 213 185 165 151 131 118 107 100 93 88 83 75 68

23 3/4" 653 475 394 345 312 287 251 227 209 194 183 173 165 149 137

31 1" 1571 1126 927 807 725 664 578 520 476 442 415 392 372 334 306

37 1-1/4" 2415 1719 1409 1224 1097 1003 871 781 714 662 620 585 556 498 456

48 1-1/2" 5110 3632 2974 2581 2312 2114 1834 1643 1502 1392 1304 1230 1168 1046 956

60 2" 11314 7915 6423 5538 4936 4493 3874 3453 3144 2904 2711 2551 2416 2154 1960

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 20 18 16 14 12 11 10 10 9 8 8 8 7 7 7

19 1/2" 59 53 49 42 38 34 32 30 28 27 26 24 24 23 22

23 3/4" 120 108 100 87 79 72 67 63 60 57 55 53 51 49 48

31 1" 267 240 220 191 172 157 146 137 130 123 118 113 109 105 101

37 1-1/4" 396 355 324 282 253 231 214 201 189 180 172 164 158 152 147

48 1-1/2" 830 744 680 590 528 483 448 419 396 376 358 343 330 318 308

60 2" 1690 1507 1372 1183 1054 960 886 827 779 737 702 671 644 620 598

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-7

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 5.0"WC

(based on a 0.60 speciﬁc gravity gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 157 109 88 76 67 61 52 47 42 39 36 34 32 29 26

19 1/2" 409 290 238 206 185 169 146 131 120 111 104 98 93 83 76

23 3/4" 723 526 437 383 345 318 278 251 231 215 202 192 183 165 152

31 1" 1749 1254 1032 898 807 739 644 578 530 492 461 436 415 372 341

37 1-1/4" 2694 1918 1572 1365 1224 1119 972 871 797 739 692 653 620 556 508

48 1-1/2" 5704 4054 3320 2881 2581 2359 2048 1834 1677 1554 1455 1373 1304 1168 1068

60 2" 12692 8880 7205 6213 5538 5041 4346 3874 3527 3257 3041 2862 2711 2416 2199

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 22 20 18 15 14 13 12 11 10 10 9 9 8 8 8

19 1/2" 66 59 54 47 42 38 36 33 32 30 29 27 26 25 24

23 3/4" 133 120 110 97 87 80 75 70 67 63 61 58 56 54 53

31 1" 297 267 244 213 191 175 163 153 144 137 131 126 121 117 113

37 1-1/4" 441 396 362 314 282 258 239 224 211 201 191 183 176 170 164

48 1-1/2" 926 830 759 658 590 539 500 468 442 419 400 383 368 355 343

60 2" 1896 1690 1539 1327 1183 1077 994 928 874 827 788 753 723 696 671

Table 7-8

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 6.0"WC

(based on a 0.60 speciﬁc gravity gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 173 120 97 83 74 67 58 51 47 43 40 38 36 32 29

19 1/2" 447 318 260 226 202 185 160 144 131 122 114 107 102 91 83

23 3/4" 787 572 475 416 376 345 303 273 251 234 220 209 199 179 165

31 1" 1909 1368 1126 981 881 807 703 631 578 537 504 476 452 406 372

37 1-1/4" 2946 2097 1719 1493 1338 1224 1063 953 871 808 757 714 678 608 556

48 1-1/2" 6240 4435 3632 3152 2824 2581 2240 2007 1834 1700 1592 1502 1426 1278 1168

60 2" 13943 9755 7915 6825 6083 5538 4775 4256 3874 3578 3340 3144 2978 2654 2416

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 25 22 20 17 15 14 13 12 11 11 10 10 9 9 8

19 1/2" 72 65 59 51 46 42 39 37 34 33 31 30 29 28 27

23 3/4" 145 130 120 105 95 87 81 76 72 69 66 63 61 59 57

31 1" 324 291 267 232 209 191 178 167 157 150 143 137 132 127 123

37 1-1/4" 483 433 396 344 308 282 261 245 231 219 209 201 193 186 180

48 1-1/2" 1014 908 830 720 645 590 547 512 483 459 438 419 403 389 376

60 2" 2083 1857 1690 1457 1299 1183 1092 1020 960 909 865 827 794 764 737

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 83

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

7.2 CSST CAPACITY TABLES—NATURAL GAS - ELEVATED PRESSURE

Table 7-9

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 1.0 PSI and a Pressure Drop of 13.0"WC

(based on a 0.60 speciﬁc gravity gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 261 181 146 125 111 101 87 77 70 65 60 57 53 48 43

19 1/2" 655 465 381 330 296 271 235 210 192 178 167 157 149 134 122

23 3/4" 1122 816 677 594 536 493 432 390 358 334 314 297 283 256 235

31 1" 2769 1984 1633 1422 1277 1170 1019 916 839 779 730 690 656 589 540

37 1-1/4" 4304 3064 2511 2181 1955 1788 1553 1392 1273 1180 1105 1043 991 888 812

48 1-1/2" 9134 6491 5316 4613 4133 3778 3279 2937 2685 2489 2330 2199 2087 1870 1709

60 2" 20768 14530 11790 10165 9061 8249 7112 6339 5771 5330 4976 4683 4435 3953 3599

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 37 33 30 26 23 21 19 18 17 16 15 14 14 13 13

19 1/2" 106 95 87 75 67 62 57 54 50 48 46 44 42 41 39

23 3/4" 206 186 171 150 135 124 116 109 103 98 94 91 87 84 82

31 1" 470 422 387 337 303 277 258 241 228 217 207 199 191 185 179

37 1-1/4" 705 632 578 502 450 412 382 357 337 320 306 293 282 272 263

48 1-1/2" 1484 1329 1215 1054 945 863 800 749 707 671 640 614 590 569 550

60 2" 3103 2766 2518 2171 1935 1762 1627 1519 1429 1354 1289 1232 1183 1138 1099

Table 7-10

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 2.0 PSI and a Pressure Drop of 1.0 PSI

(based on a 0.60 speciﬁc gravity gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 392 271 219 188 167 152 130 116 105 97 90 85 80 71 65

19 1/2" 957 679 556 483 432 395 343 307 281 260 243 230 218 195 179

23 3/4" 1596 1161 964 844 762 701 614 554 510 475 447 423 403 364 335

31 1" 4004 2869 2361 2056 1847 1692 1474 1324 1213 1126 1056 998 949 852 781

37 1-1/4" 6269 4463 3658 3177 2848 2604 2262 2027 1854 1719 1610 1520 1443 1294 1183

48 1-1/2" 13331 9474 7758 6733 6032 5514 4785 4287 3918 3632 3401 3209 3047 2729 2495

60 2" 30841 21577 17508 15096 13456 12249 10561 9414 8570 7915 7389 6954 6586 5871 5344

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 56 49 45 39 34 31 29 27 25 24 23 22 21 20 19

19 1/2" 155 139 127 110 99 90 83 78 74 70 67 64 62 59 57

23 3/4" 293 265 243 213 193 177 165 155 147 140 134 129 124 120 116

31 1" 680 611 560 487 438 401 372 349 330 314 300 287 277 267 258

37 1-1/4" 1027 921 842 731 656 600 556 521 491 467 445 427 410 396 383

48 1-1/2" 2165 1940 1773 1539 1379 1260 1168 1094 1032 980 935 896 861 830 802

60 2" 4608 4107 3739 3224 2874 2616 2416 2255 2123 2010 1914 1830 1756 1690 1631

Caution: Capacities shown in the elevated pressure tables may exceed the capacity of the line regulator. Refer to Section 4 for Regulator

Capacities and Pressure Drops

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-11

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 5.0 PSI and a Pressure Drop of 3.5 PSI

(based on a 0.60 speciﬁc gravity gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 760 527 425 365 324 295 253 225 204 188 175 165 156 138 126

19 1/2" 1775 1261 1032 896 802 733 636 570 521 483 452 426 405 363 331

23 3/4" 2838 2064 1713 1501 1355 1246 1092 986 906 844 794 752 717 647 595

31 1" 7311 5239 4312 3755 3373 3090 2691 2417 2214 2056 1929 1822 1732 1556 1426

37 1-1/4" 11587 8248 6761 5872 5263 4813 4180 3747 3426 3177 2976 2809 2667 2391 2186

48 1-1/2" 24713 17563 14382 12482 11182 10221 8871 7947 7264 6733 6304 5949 5648 5060 4625

60 2" 58818 41150 33391 28790 25662 23361 20142 17954 16344 15096 14092 13262 12561 11196 10192

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 108 96 87 75 66 60 56 52 49 46 44 42 40 39 37

19 1/2" 287 257 235 204 183 167 155 145 137 130 124 119 114 110 106

23 3/4" 521 471 433 379 342 315 293 276 261 249 238 229 221 213 207

31 1" 1242 1115 1022 890 799 732 680 638 603 573 547 525 505 487 471

37 1-1/4" 1899 1702 1556 1352 1212 1108 1027 962 908 863 823 789 758 731 707

48 1-1/2" 4014 3596 3287 2853 2556 2336 2165 2027 1913 1816 1733 1660 1596 1539 1487

60 2" 8788 7833 7131 6148 5480 4989 4608 4301 4048 3834 3650 3490 3349 3224 3111

Caution: Capacities shown in the elevated pressure tables may exceed the capacity of the line regulator. Refer to Section 4 for Regulator

Capacities and Pressure Drops.

Table 7-12

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Cubic Feet Per Hour of Natural Gas

with a Gas Pressure of 10.0 PSI and a Pressure Drop of 7.0 PSI

(based on a 0.60 speciﬁc gravity gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 1097 760 613 527 468 425 365 324 295 271 253 238 225 200 181

19 1/2" 2499 1775 1453 1261 1129 1032 896 802 733 679 636 600 570 510 466

23 3/4" 3902 2838 2356 2064 1863 1713 1501 1355 1246 1161 1092 1034 986 890 818

31 1" 10201 7311 6016 5239 4707 4312 3755 3373 3090 2869 2691 2543 2417 2171 1989

37 1-1/4" 16276 11587 9498 8248 7394 6761 5872 5263 4813 4463 4180 3945 3747 3359 3071

48 1-1/2" 34773 24713 20237 17563 15734 14382 12482 11182 10221 9474 8871 8370 7947 7120 6508

60 2" 84071 58818 47727 41150 36680 33391 28790 25662 23361 21577 20142 18956 17954 16003 14568

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 156 138 126 108 96 87 80 75 70 66 63 60 58 56 54

19 1/2" 405 363 331 287 257 235 218 204 193 183 174 167 161 155 150

23 3/4" 717 647 595 521 471 433 403 379 359 342 328 315 303 293 284

31 1" 1732 1556 1426 1242 1115 1022 949 890 841 799 763 732 705 680 658

37 1-1/4" 2667 2391 2186 1899 1702 1556 1443 1352 1276 1212 1156 1108 1065 1027 993

48 1-1/2" 5648 5060 4625 4014 3596 3287 3047 2853 2692 2556 2438 2336 2246 2165 2093

60 2" 12561 11196 10192 8788 7833 7131 6586 6148 5786 5480 5218 4989 4787 4608 4447

Caution: Capacities shown in the elevated pressure tables may exceed the capacity of the line regulator. Refer to Section 4 for Regulator

Capacities and Pressure Drops.

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 85

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

7.3 CSST CAPACITY TABLES—PROPANE GAS

Table 7-13

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Thousands of BTU Per Hour of Liqueﬁed Petroleum Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 0.5"WC

(based on a 1.52 speciﬁc gravity LP gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 74 51 41 35 31 29 25 22 20 18 17 16 15 13 12

19 1/2" 208 148 121 105 94 86 75 67 61 57 53 50 47 42 39

23 3/4" 398 290 240 211 190 175 153 138 127 118 111 106 101 91 83

31 1" 917 657 541 471 423 387 337 303 278 258 242 229 217 195 179

37 1-1/4" 1381 983 806 700 627 574 498 446 408 379 355 335 318 285 261

48 1-1/2" 2907 2066 1692 1468 1316 1203 1044 935 855 792 742 700 664 595 544

60 2" 6141 4296 3486 3006 2679 2439 2103 1874 1706 1576 1471 1385 1311 1169 1064

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

133/8"109876655544444 4

19 1/2" 34 30 28 24 21 20 18 17 16 15 15 14 13 13 12

23 3/4" 73 66 61 53 48 44 41 39 37 35 33 32 31 30 29

31 1" 156 140 128 112 100 92 85 80 76 72 69 66 63 61 59

37 1-1/4" 226 203 185 161 144 132 122 115 108 103 98 94 90 87 84

48 1-1/2" 472 423 387 336 301 275 255 239 225 214 204 195 188 181 175

60 2" 917 818 744 642 572 521 481 449 423 400 381 364 350 337 325

Table 7-14

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Thousands of BTU Per Hour of Liqueﬁed Petroleum Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 1.0"WC

(based on a 1.52 speciﬁc gravity LP gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 106 74 60 51 45 41 35 31 29 26 25 23 22 19 18

19 1/2" 293 208 170 148 132 121 105 94 86 80 75 70 67 60 55

23 3/4" 548 398 331 290 261 240 211 190 175 163 153 145 138 125 115

31 1" 1279 917 754 657 590 541 471 423 387 360 337 319 303 272 249

37 1-1/4" 1940 1381 1132 983 881 806 700 627 574 532 498 470 446 400 366

48 1-1/2" 4091 2907 2381 2066 1851 1692 1468 1316 1203 1115 1044 985 935 838 766

60 2" 8777 6141 4983 4296 3829 3486 3006 2679 2439 2253 2103 1979 1874 1671 1521

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 15 13 12 10 9 8 8 7 7 6 6 6 6 5 5

19 1/2" 47 42 39 34 30 28 26 24 23 21 20 20 19 18 18

23 3/4" 101 91 83 73 66 61 57 53 50 48 46 44 43 41 40

31 1" 217 195 179 156 140 128 119 112 105 100 96 92 88 85 82

37 1-1/4" 318 285 261 226 203 185 172 161 152 144 138 132 127 122 118

48 1-1/2" 664 595 544 472 423 387 358 336 317 301 287 275 264 255 246

60 2" 1311 1169 1064 917 818 744 688 642 604 572 545 521 500 481 464

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-15

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Thousands of BTU Per Hour of Liqueﬁed Petroleum Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 2.0"WC

(based on a 1.52 speciﬁc gravity LP gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 154 106 86 74 66 60 51 45 41 38 35 33 31 28 25

19 1/2" 412 293 240 208 186 170 148 132 121 112 105 99 94 84 77

23 3/4" 753 548 454 398 359 331 290 261 240 224 211 200 190 172 158

31 1" 1785 1279 1053 917 824 754 657 590 541 502 471 445 423 380 348

37 1-1/4" 2725 1940 1590 1381 1238 1132 983 881 806 747 700 660 627 562 514

48 1-1/2" 5756 4091 3350 2907 2605 2381 2066 1851 1692 1568 1468 1386 1316 1179 1077

60 2" 12546 8777 7122 6141 5474 4983 4296 3829 3486 3220 3006 2829 2679 2388 2174

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 22 19 18 15 13 12 11 10 10 9 9 8 8 8 8

19 1/2" 67 60 55 47 42 39 36 34 32 30 29 28 27 26 25

23 3/4" 138 125 115 101 91 83 78 73 69 66 63 61 59 57 55

31 1" 303 272 249 217 195 179 166 156 147 140 134 128 123 119 115

37 1-1/4" 446 400 366 318 285 261 242 226 214 203 194 185 178 172 166

48 1-1/2" 935 838 766 664 595 544 504 472 446 423 404 387 372 358 346

60 2" 1874 1671 1521 1311 1169 1064 983 917 863 818 779 744 714 688 664

Table 7-16

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Thousands of BTU Per Hour of Liqueﬁed Petroleum Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 2.5"WC

(based on a 1.52 speciﬁc gravity LP gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 173 120 97 83 74 67 58 51 46 43 40 37 35 31 29

19 1/2" 460 327 268 232 208 190 165 148 135 125 117 111 105 94 86

23 3/4" 834 607 504 441 398 366 321 290 266 248 233 221 211 190 175

31 1" 1987 1424 1172 1021 917 840 731 657 602 559 524 495 471 423 387

37 1-1/4" 3040 2164 1774 1540 1381 1263 1097 983 899 833 781 737 700 627 574

48 1-1/2" 6426 4567 3740 3245 2907 2658 2306 2066 1889 1751 1639 1547 1468 1316 1203

60 2" 14075 9847 7990 6889 6141 5590 4820 4296 3911 3612 3372 3173 3006 2679 2439

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 25 22 20 17 15 14 13 12 11 10 10 10 9 9 8

19 1/2" 75 67 61 53 47 43 40 38 35 34 32 31 30 29 28

23 3/4" 153 138 127 111 101 93 86 81 77 73 70 67 65 63 61

31 1" 337 303 278 242 217 199 185 173 164 156 149 143 137 132 128

37 1-1/4" 498 446 408 355 318 291 270 252 238 226 216 207 199 192 185

48 1-1/2" 1044 935 855 742 664 607 563 527 497 472 451 432 415 400 387

60 2" 2103 1874 1706 1471 1311 1194 1103 1029 969 917 873 835 801 771 744

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 87

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-17

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Thousands of BTU Per Hour of Liqueﬁed Petroleum Gas

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 3.0"WC

(based on a 1.52 speciﬁc gravity LP gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 190 132 106 91 81 74 63 56 51 47 44 41 39 35 31

19 1/2" 504 358 293 254 228 208 180 162 148 137 128 121 115 103 94

23 3/4" 907 660 548 480 433 398 349 315 290 270 254 240 229 207 190

31 1" 2169 1554 1279 1114 1001 917 798 717 657 610 572 541 514 462 423

37 1-1/4" 3324 2366 1940 1684 1510 1381 1199 1075 983 911 854 806 765 686 627

48 1-1/2" 7029 4996 4091 3550 3181 2907 2523 2260 2066 1915 1793 1692 1606 1439 1316

60 2" 15461 10817 8777 7568 6746 6141 5295 4719 4296 3968 3704 3486 3302 2943 2679

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 27 24 22 19 17 15 14 13 12 12 11 10 10 10 9

19 1/2" 82 73 67 58 52 47 44 41 39 37 35 34 32 31 30

23 3/4" 167 150 138 121 109 101 94 88 83 80 76 73 71 68 66

31 1" 368 331 303 264 237 217 202 189 179 170 162 156 150 145 140

37 1-1/4" 545 488 446 388 348 318 295 276 261 247 236 226 218 210 203

48 1-1/2" 1142 1023 935 811 727 664 616 577 544 517 493 472 454 438 423

60 2" 2310 2059 1874 1616 1441 1311 1211 1131 1064 1008 960 917 880 847 818

7.4 CSST CAPACITY TABLES—PROPANE GAS - ELEVATED PRESSURE

Table 7-18

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Thousands of BTU Per Hour of Liqueﬁed Petroleum Gas

with a Gas Pressure of 2.0 PSI or Less and a Pressure Drop of 1.0 PSI

(based on a 1.52 speciﬁc gravity LP gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 621 430 347 298 265 241 207 184 167 154 143 135 127 113 103

19 1/2" 1516 1077 882 765 685 626 543 487 445 412 386 364 346 310 283

23 3/4" 2530 1840 1527 1338 1208 1111 973 879 808 753 708 671 639 577 530

31 1" 6346 4548 3743 3259 2928 2682 2336 2098 1922 1785 1674 1582 1504 1351 1237

37 1-1/4" 9937 7074 5798 5036 4514 4128 3585 3213 2938 2725 2552 2409 2287 2050 1875

48 1-1/2" 21129 15016 12297 10672 9561 8739 7584 6795 6211 5756 5390 5086 4829 4326 3954

60 2" 48882 34199 27750 23926 21327 19415 16739 14921 13583 12546 11711 11022 10439 9305 8471

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 88 78 71 61 54 49 45 42 40 38 36 34 33 31 30

19 1/2" 246 220 201 174 156 143 132 124 117 111 106 101 97 94 91

23 3/4" 465 420 386 338 305 281 261 246 233 222 212 204 197 190 184

31 1" 1078 968 887 772 694 636 590 553 523 497 475 455 438 423 409

37 1-1/4" 1628 1460 1335 1159 1039 950 881 825 779 740 706 676 650 627 606

48 1-1/2" 3432 3074 2810 2439 2185 1997 1851 1733 1636 1553 1482 1419 1365 1316 1272

60 2" 7303 6510 5926 5110 4555 4146 3829 3575 3364 3186 3034 2901 2783 2679 2586

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-19

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Thousands of BTU Per Hour of Liqueﬁed Petroleum Gas

with a Gas Pressure of 5.0 PSI and a Pressure Drop of 3.5 PSI

(based on a 1.52 speciﬁc gravity LP gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 1205 835 674 578 514 467 401 356 323 298 278 261 247 219 199

19 1/2" 2814 1999 1636 1420 1272 1162 1008 903 825 765 716 676 641 575 525

23 3/4" 4498 3272 2716 2380 2148 1975 1731 1562 1437 1338 1259 1192 1136 1025 943

31 1" 11588 8305 6834 5952 5346 4898 4265 3831 3510 3259 3057 2888 2746 2467 2260

37 1-1/4" 18365 13074 10717 9307 8342 7629 6625 5939 5431 5036 4716 4452 4228 3790 3465

48 1-1/2" 39170 27837 22796 19783 17724 16201 14060 12596 11514 10672 9992 9429 8952 8020 7331

60 2" 93226 65223 52924 45632 40675 37027 31925 28457 25905 23926 22335 21020 19909 17746 16155

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 171 152 138 119 105 96 88 82 77 73 69 66 64 61 59

19 1/2" 456 408 373 324 290 265 246 230 217 206 196 188 181 174 169

23 3/4" 826 746 686 601 542 499 465 437 414 395 378 363 350 338 328

31 1" 1968 1768 1619 1410 1267 1161 1078 1011 955 908 867 832 800 772 747

37 1-1/4" 3010 2698 2467 2142 1920 1756 1628 1525 1440 1367 1305 1250 1202 1159 1121

48 1-1/2" 6362 5699 5210 4521 4051 3703 3432 3213 3032 2879 2747 2631 2530 2439 2357

60 2" 13929 12416 11302 9745 8686 7907 7303 6818 6416 6077 5786 5532 5309 5110 4931

Caution: Capacities shown in the elevated pressure tables may exceed the capacity of the line regulator. Refer to Section 4 for Regulator

Capacities and Pressure Drops.

Table 7-20

Maximum Capacity of Gastite®/FlashShield™ Flexible Gas Piping in Thousands of BTU Per Hour of Liqueﬁed Petroleum Gas

with a Gas Pressure of 10.0 PSI and a Pressure Drop of 7.0 PSI

(based on a 1.52 speciﬁc gravity LP gas)

Tubing Tubing Length (ft)

EHD Size 510 15 20 25 30 40 50 60 70 80 90 100 125 150

13 3/8" 1738 1205 972 835 742 674 578 514 467 430 401 377 356 317 287

19 1/2" 3961 2814 2303 1999 1790 1636 1420 1272 1162 1077 1008 951 903 809 739

23 3/4" 6185 4498 3734 3272 2953 2716 2380 2148 1975 1840 1731 1640 1562 1410 1297

31 1" 16169 11588 9536 8305 7460 6834 5952 5346 4898 4548 4265 4030 3831 3442 3153

37 1-1/4" 25798 18365 15054 13074 11719 10717 9307 8342 7629 7074 6625 6254 5939 5323 4868

48 1-1/2" 55115 39170 32076 27837 24939 22796 19783 17724 16201 15016 14060 13267 12596 11284 10315

60 2" 133253 93226 75647 65223 58138 52924 45632 40675 37027 34199 31925 30045 28457 25365 23091

Tubing Tubing Length (ft)

EHD Size 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

13 3/8" 247 219 199 171 152 138 127 119 111 105 100 96 92 88 85

19 1/2" 641 575 525 456 408 373 346 324 305 290 277 265 255 246 237

23 3/4" 1136 1025 943 826 746 686 639 601 569 542 519 499 481 465 450

31 1" 2746 2467 2260 1968 1768 1619 1504 1410 1333 1267 1210 1161 1117 1078 1043

37 1-1/4" 4228 3790 3465 3010 2698 2467 2287 2142 2022 1920 1833 1756 1689 1628 1574

48 1-1/2" 8952 8020 7331 6362 5699 5210 4829 4521 4266 4051 3865 3703 3559 3432 3317

60 2" 19909 17746 16155 13929 12416 11302 10439 9745 9171 8686 8270 7907 7588 7303 7048

Caution: Capacities shown in the elevated pressure tables may exceed the capacity of the line regulator. Refer to Section 4 for Regulator

Capacities and Pressure Drops.

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 89

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

7.5 GASTITE®/FLASHSHIELD™ CSST PRESSURE DROP PER FOOT TABLES

Table 7-21 (Sheet 1 of 2)

Gastite®/FlashShield™ CSST Pressure Drop Tables

Pressure drop per foot in inches of water column (based on Natural Gas of 0.60 speciﬁc gravity)

CFH 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" CFH 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"

10 0.005 0.001 0.000 0.000 0.000 0.000 0.000 1000 2.023 0.312 0.133 0.029 0.007

20 0.020 0.002 0.000 0.000 0.000 0.000 0.000 1050 2.250 0.346 0.146 0.032 0.007

30 0.044 0.005 0.001 0.000 0.000 0.000 0.000 1100 2.490 0.381 0.161 0.035 0.008

40 0.075 0.009 0.002 0.000 0.000 0.000 0.000 1150 2.743 0.418 0.176 0.039 0.009

50 0.114 0.014 0.003 0.001 0.000 0.000 0.000 1200 3.009 0.457 0.192 0.042 0.009

60 0.161 0.020 0.004 0.001 0.000 0.000 0.000 1250 3.288 0.497 0.209 0.046 0.010

70 0.216 0.028 0.006 0.001 0.001 0.000 0.000 1300 3.582 0.539 0.226 0.050 0.011

80 0.278 0.037 0.008 0.002 0.001 0.000 0.000 1350 3.888 0.583 0.244 0.054 0.012

90 0.347 0.047 0.011 0.002 0.001 0.000 0.000 1400 4.209 0.629 0.263 0.058 0.013

100 0.424 0.058 0.013 0.003 0.001 0.000 0.000 1450 4.543 0.677 0.283 0.062 0.014

110 0.508 0.070 0.017 0.003 0.001 0.000 0.000 1500 4.891 0.726 0.303 0.066 0.015

120 0.599 0.083 0.020 0.004 0.002 0.000 0.000 1550 0.778 0.324 0.071 0.016

130 0.696 0.098 0.024 0.004 0.002 0.000 0.000 1600 0.831 0.346 0.076 0.017

140 0.801 0.114 0.028 0.005 0.002 0.001 0.000 1650 0.886 0.368 0.081 0.018

150 0.913 0.131 0.033 0.006 0.003 0.001 0.000 1700 0.942 0.391 0.086 0.019

160 1.031 0.149 0.037 0.007 0.003 0.001 0.000 1750 1.001 0.415 0.091 0.020

170 1.156 0.169 0.043 0.008 0.004 0.001 0.000 1800 1.061 0.439 0.096 0.021

180 1.288 0.190 0.048 0.009 0.004 0.001 0.000 1850 1.124 0.465 0.102 0.022

190 1.427 0.212 0.054 0.010 0.004 0.001 0.000 1900 1.188 0.491 0.107 0.023

200 1.572 0.235 0.061 0.011 0.005 0.001 0.000 1950 1.254 0.517 0.113 0.024

225 1.964 0.298 0.079 0.014 0.006 0.001 0.000 2000 1.321 0.545 0.119 0.026

250 2.397 0.369 0.099 0.017 0.008 0.002 0.000 2050 1.391 0.573 0.125 0.027

275 2.870 0.448 0.122 0.021 0.010 0.002 0.001 2100 1.463 0.602 0.132 0.028

300 3.383 0.534 0.147 0.026 0.011 0.003 0.001 2150 1.536 0.631 0.138 0.029

325 3.935 0.628 0.175 0.030 0.013 0.003 0.001 2200 1.611 0.662 0.145 0.031

350 4.527 0.730 0.206 0.035 0.016 0.003 0.001 2250 1.688 0.693 0.151 0.032

375 0.840 0.239 0.041 0.018 0.004 0.001 2300 1.767 0.724 0.158 0.033

400 0.957 0.275 0.046 0.020 0.005 0.001 2350 1.848 0.757 0.165 0.035

425 1.082 0.314 0.053 0.023 0.005 0.001 2400 1.931 0.790 0.173 0.036

450 1.215 0.356 0.059 0.026 0.006 0.001 2450 2.016 0.824 0.180 0.038

475 1.356 0.400 0.066 0.029 0.006 0.002 2500 2.102 0.859 0.187 0.039

500 1.504 0.447 0.074 0.032 0.007 0.002 2550 2.191 0.894 0.195 0.041

525 1.660 0.497 0.082 0.036 0.008 0.002 2600 2.281 0.930 0.203 0.042

550 1.824 0.551 0.090 0.039 0.009 0.002 2650 2.373 0.967 0.211 0.044

600 2.176 0.665 0.108 0.047 0.010 0.002 2700 2.467 1.005 0.219 0.046

625 2.364 0.727 0.118 0.051 0.011 0.003 2750 2.563 1.043 0.227 0.047

650 2.559 0.792 0.127 0.055 0.012 0.003 2800 2.661 1.082 0.236 0.049

675 2.763 0.860 0.138 0.059 0.013 0.003 2850 2.761 1.122 0.245 0.051

700 2.974 0.931 0.149 0.064 0.014 0.003 2900 2.863 1.162 0.253 0.052

725 3.193 1.005 0.160 0.069 0.015 0.004 2950 2.966 1.204 0.262 0.054

750 3.420 1.081 0.172 0.074 0.016 0.004 3000 3.072 1.246 0.271 0.056

775 3.655 1.161 0.184 0.079 0.017 0.004 3050 3.179 1.288 0.281 0.058

800 3.898 1.245 0.196 0.084 0.019 0.004 3100 3.289 1.332 0.290 0.060

825 4.149 1.331 0.209 0.089 0.020 0.005 3150 3.400 1.376 0.300 0.062

850 4.408 1.420 0.223 0.095 0.021 0.005 3200 3.513 1.421 0.309 0.063

875 4.674 1.513 0.237 0.101 0.022 0.005 3250 3.628 1.466 0.319 0.065

900 4.949 1.608 0.251 0.107 0.024 0.005 3300 3.746 1.513 0.329 0.067

925 1.707 0.266 0.113 0.025 0.006 3350 3.865 1.560 0.340 0.069

950 1.809 0.281 0.119 0.026 0.006 3400 3.986 1.608 0.350 0.071

975 1.915 0.296 0.126 0.028 0.006 3450 4.108 1.656 0.360 0.073

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-21 (Sheet 2 of 2)

Gastite®/FlashShield™ CSST Pressure Drop Tables

Pressure drop per foot in inches of water column (based on Natural Gas of 0.60 speciﬁc gravity)

CFH 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" CFH 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"

3500 4.233 1.706 0.371 0.076 6800 1.428 0.274

3550 4.360 1.756 0.382 0.078 6900 1.471 0.282

3600 4.489 1.807 0.393 0.080 7000 1.515 0.290

3650 4.620 1.858 0.404 0.082 7100 1.559 0.298

3700 4.752 1.910 0.415 0.084 7200 1.604 0.306

3750 4.887 1.963 0.427 0.086 7300 1.650 0.315

3800 2.017 0.438 0.089 7400 1.696 0.323

3850 2.072 0.450 0.091 7500 1.743 0.331

3900 2.127 0.462 0.093 7600 1.790 0.340

3950 2.183 0.474 0.096 7700 1.838 0.349

4000 2.240 0.487 0.098 7750 1.863 0.353

4050 2.297 0.499 0.100 7800 1.887 0.358

4100 2.355 0.512 0.103 7900 1.937 0.367

4150 2.414 0.524 0.105 8000 1.987 0.376

4200 2.474 0.537 0.108 8100 2.037 0.385

4250 2.534 0.550 0.110 8200 2.089 0.394

4300 2.596 0.564 0.113 8250 2.115 0.399

4350 2.657 0.577 0.115 8300 2.141 0.404

4400 2.720 0.590 0.118 8400 2.193 0.413

4450 2.784 0.604 0.120 8500 2.247 0.423

4500 2.848 0.618 0.123 8600 2.301 0.432

4550 2.913 0.632 0.126 8700 2.355 0.442

4600 2.978 0.646 0.128 8750 2.383 0.447

4650 3.045 0.661 0.131 8800 2.411 0.452

4700 3.112 0.675 0.134 8900 2.467 0.462

4750 3.180 0.690 0.137 9000 2.523 0.472

4800 3.248 0.704 0.139 9100 2.580 0.482

4850 3.318 0.719 0.142 9200 2.638 0.493

4900 3.388 0.735 0.145 9250 2.667 0.498

4950 3.459 0.750 0.148 9300 2.697 0.503

5000 3.530 0.765 0.151 9400 2.756 0.514

5100 3.676 0.797 0.157 9500 2.816 0.524

5200 3.824 0.829 0.163 9600 2.876 0.535

5300 3.976 0.861 0.169 9700 2.937 0.546

5400 4.130 0.895 0.175 9750 2.968 0.551

5500 4.288 0.929 0.182 9800 2.999 0.557

5600 4.448 0.963 0.188 9900 3.062 0.568

5700 4.612 0.998 0.195 10000 3.125 0.579

5800 4.779 1.034 0.201 10500 3.450 0.637

5900 4.948 1.071 0.208 11000 3.792 0.697

6000 1.108 0.215 11500 4.149 0.760

6100 1.146 0.222 12000 4.524 0.825

6200 1.184 0.229 12500 4.915 0.893

6300 1.223 0.236 13000 0.964

6400 1.263 0.244 13500 1.037

6500 1.303 0.251 14000 1.113

6600 1.344 0.259 14500 1.191

6700 1.386 0.266 15000 1.272

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 91

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-22 (Sheet 1 of 2)

Gastite®/FlashShield™ CSST Pressure Drop Tables

Pressure drop per foot in inches of water column (based on LP Gas of 1.52 speciﬁc gravity, 2516 BTUh/CFH)

CFH 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" CFH 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"

10 0.002 0.000 0.000 0.000 0.000 0.000 0.000 1000 2.571 0.796 0.128 0.055 0.012 0.003

20 0.009 0.001 0.000 0.000 0.000 0.000 0.000 1050 2.838 0.885 0.142 0.061 0.014 0.003

30 0.019 0.002 0.000 0.000 0.000 0.000 0.000 1100 3.119 0.979 0.156 0.067 0.015 0.003

40 0.033 0.004 0.001 0.000 0.000 0.000 0.000 1150 3.413 1.079 0.171 0.074 0.016 0.004

50 0.051 0.006 0.001 0.000 0.000 0.000 0.000 1200 3.720 1.184 0.187 0.080 0.018 0.004

60 0.072 0.009 0.002 0.000 0.000 0.000 0.000 1250 4.041 1.294 0.204 0.087 0.019 0.004

70 0.096 0.012 0.002 0.001 0.000 0.000 0.000 1300 4.375 1.409 0.221 0.094 0.021 0.005

80 0.124 0.015 0.003 0.001 0.000 0.000 0.000 1350 4.723 1.530 0.239 0.102 0.022 0.005

90 0.155 0.020 0.004 0.001 0.000 0.000 0.000 1400 1.656 0.258 0.110 0.024 0.006

100 0.189 0.024 0.005 0.001 0.001 0.000 0.000 1450 1.787 0.277 0.118 0.026 0.006

110 0.226 0.029 0.007 0.001 0.001 0.000 0.000 1500 1.924 0.298 0.126 0.028 0.006

120 0.266 0.035 0.008 0.002 0.001 0.000 0.000 1550 2.066 0.319 0.135 0.030 0.007

130 0.310 0.041 0.009 0.002 0.001 0.000 0.000 1600 2.214 0.341 0.144 0.032 0.007

140 0.356 0.048 0.011 0.002 0.001 0.000 0.000 1650 2.368 0.363 0.154 0.034 0.008

150 0.406 0.055 0.013 0.002 0.001 0.000 0.000 1700 2.527 0.386 0.163 0.036 0.008

160 0.459 0.063 0.015 0.003 0.001 0.000 0.000 1750 2.691 0.410 0.173 0.038 0.009

170 0.514 0.071 0.017 0.003 0.001 0.000 0.000 1800 2.861 0.435 0.183 0.040 0.009

180 0.573 0.080 0.019 0.004 0.002 0.000 0.000 1850 3.037 0.461 0.194 0.043 0.010

190 0.635 0.089 0.021 0.004 0.002 0.000 0.000 1900 3.219 0.487 0.205 0.045 0.010

200 0.699 0.099 0.024 0.005 0.002 0.000 0.000 1950 3.406 0.514 0.216 0.047 0.011

225 0.874 0.125 0.031 0.006 0.003 0.001 0.000 2000 3.599 0.542 0.227 0.050 0.011

250 1.066 0.155 0.039 0.007 0.003 0.001 0.000 2050 3.798 0.570 0.239 0.053 0.012

275 1.277 0.188 0.048 0.009 0.004 0.001 0.000 2100 4.003 0.600 0.251 0.055 0.012

300 1.505 0.224 0.058 0.010 0.005 0.001 0.000 2150 4.213 0.630 0.263 0.058 0.013

325 1.751 0.264 0.069 0.012 0.006 0.001 0.000 2200 4.429 0.661 0.276 0.061 0.013

350 2.014 0.306 0.081 0.014 0.006 0.001 0.000 2250 4.651 0.692 0.289 0.063 0.014

375 2.294 0.352 0.094 0.017 0.007 0.002 0.000 2300 4.879 0.725 0.302 0.066 0.015

400 2.592 0.402 0.108 0.019 0.009 0.002 0.000 2350 0.758 0.316 0.069 0.015

425 2.907 0.454 0.124 0.022 0.010 0.002 0.001 2400 0.792 0.330 0.072 0.016

450 3.238 0.510 0.140 0.024 0.011 0.002 0.001 2450 0.826 0.344 0.075 0.016

475 3.587 0.569 0.157 0.027 0.012 0.003 0.001 2500 0.862 0.358 0.079 0.017

500 3.952 0.631 0.176 0.030 0.013 0.003 0.001 2550 0.898 0.373 0.082 0.018

525 4.334 0.697 0.196 0.034 0.015 0.003 0.001 2600 0.935 0.388 0.085 0.018

550 4.732 0.766 0.217 0.037 0.016 0.004 0.001 2650 0.973 0.404 0.088 0.019

575 0.913 0.262 0.044 0.020 0.004 0.001 2700 1.012 0.419 0.092 0.020

600 0.992 0.286 0.048 0.021 0.005 0.001 2750 1.051 0.435 0.095 0.021

625 1.074 0.312 0.052 0.023 0.005 0.001 2800 1.091 0.451 0.099 0.021

650 1.159 0.338 0.057 0.025 0.006 0.001 2850 1.132 0.468 0.102 0.022

675 1.248 0.366 0.061 0.027 0.006 0.001 2900 1.174 0.485 0.106 0.023

700 1.340 0.395 0.066 0.029 0.006 0.001 2950 1.216 0.502 0.110 0.024

725 1.435 0.425 0.070 0.031 0.007 0.002 3000 1.259 0.520 0.114 0.024

750 1.534 0.457 0.075 0.033 0.007 0.002 3050 1.304 0.538 0.118 0.025

775 1.636 0.490 0.081 0.035 0.008 0.002 3100 1.348 0.556 0.122 0.026

800 1.741 0.524 0.086 0.037 0.008 0.002 3150 1.394 0.574 0.126 0.027

825 1.850 0.559 0.091 0.040 0.009 0.002 3200 1.440 0.593 0.130 0.028

850 1.962 0.595 0.097 0.042 0.009 0.002 3250 1.488 0.612 0.134 0.028

860 2.077 0.633 0.103 0.045 0.010 0.002 3300 1.536 0.631 0.138 0.029

875 2.195 0.672 0.109 0.047 0.010 0.002 3350 1.585 0.651 0.142 0.030

900 2.317 0.712 0.115 0.050 0.011 0.002 3400 1.634 0.671 0.147 0.031

925 2.442 0.753 0.122 0.053 0.012 0.002 3450 1.684 0.691 0.151 0.032

950 2.317 0.712 0.115 0.050 0.011 0.003 3500 1.736 0.712 0.156 0.033

975 2.442 0.753 0.122 0.053 0.012 0.003 3550 1.788 0.733 0.160 0.034

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-22 (Sheet 2 of 2)

Gastite®/FlashShield™ CSST Pressure Drop Tables

Pressure drop per foot in inches of water column (based on LP Gas of 1.52 speciﬁc gravity, 2516 BTUh/CFH)

CFH 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" CFH 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"

3600 1.840 0.754 0.165 0.035 6900 2.841 0.617 0.123

3650 1.894 0.775 0.169 0.036 7000 2.926 0.635 0.126

3700 1.948 0.797 0.174 0.037 7100 3.012 0.653 0.130

3750 2.004 0.819 0.179 0.038 7200 3.099 0.672 0.133

3800 2.060 0.842 0.184 0.039 7300 3.188 0.691 0.137

3850 2.116 0.864 0.189 0.040 7400 3.277 0.711 0.141

3900 2.174 0.887 0.194 0.041 7500 3.368 0.730 0.144

3950 2.232 0.911 0.199 0.042 7600 3.460 0.750 0.148

4000 2.292 0.935 0.204 0.043 7700 3.554 0.770 0.152

4050 2.352 0.958 0.209 0.044 7750 3.601 0.781 0.154

4100 2.412 0.983 0.214 0.045 7800 3.649 0.791 0.156

4150 2.474 1.007 0.220 0.046 7900 3.745 0.812 0.160

4200 2.536 1.032 0.225 0.047 8000 3.842 0.833 0.164

4250 2.600 1.058 0.231 0.048 8100 3.941 0.854 0.168

4300 2.664 1.083 0.236 0.049 8200 4.041 0.875 0.172

4350 2.728 1.109 0.242 0.050 8250 4.091 0.886 0.174

4400 2.794 1.135 0.247 0.051 8300 4.142 0.897 0.176

4450 2.861 1.162 0.253 0.052 8400 4.244 0.919 0.180

4500 2.928 1.188 0.259 0.054 8500 4.348 0.942 0.184

4550 2.996 1.215 0.265 0.055 8600 4.453 0.964 0.188

4600 3.065 1.243 0.271 0.056 8700 4.559 0.987 0.192

4650 3.135 1.270 0.277 0.057 8750 4.613 0.999 0.195

4700 3.205 1.298 0.283 0.058 8800 4.666 1.010 0.197

4750 3.276 1.327 0.289 0.059 8900 4.775 1.034 0.201

4800 3.349 1.355 0.295 0.061 9000 4.885 1.057 0.206

4850 3.422 1.384 0.301 0.062 9100 4.997 1.081 0.210

4900 3.495 1.414 0.308 0.063 9200 1.106 0.215

4950 3.570 1.443 0.314 0.064 9250 1.118 0.217

5000 3.645 1.473 0.321 0.066 9300 1.130 0.219

5100 3.799 1.534 0.334 0.068 9400 1.155 0.224

5200 3.955 1.596 0.347 0.071 9500 1.180 0.228

5300 4.115 1.659 0.361 0.074 9600 1.205 0.233

5400 4.279 1.724 0.375 0.076 9700 1.231 0.238

5500 4.445 1.789 0.389 0.079 9750 1.244 0.240

5600 4.615 1.856 0.404 0.082 9800 1.257 0.243

5700 4.788 1.924 0.418 0.085 9900 1.283 0.247

5800 4.964 1.994 0.433 0.088 10000 1.309 0.252

5900 4.445 2.065 0.449 0.091 10500 1.446 0.277

6000 4.529 2.137 0.464 0.094 11000 1.589 0.303

6100 4.615 2.210 0.480 0.097 11500 1.739 0.331

6200 4.701 2.284 0.496 0.100 12000 1.896 0.359

6300 4.788 2.360 0.513 0.103 12500 2.060 0.389

6400 4.876 2.437 0.529 0.106 13000 2.230 0.420

6500 4.964 2.516 0.546 0.109 13500 2.408 0.451

6600 2.595 0.563 0.113 14000 2.592 0.485

6700 2.676 0.581 0.116 14500 2.784 0.519

6800 2.758 0.599 0.119 15000 2.982 0.554

Tables include losses for four 90° bends and two end ﬁttings. Tubing runs with a larger number of bends and/or ﬁttings shall be increased by an equivalent

length of tubing to the following equation: L=1.3n where L is additional length of tubing and n is the number of additional ﬁttings and/or bends.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 93

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

7.6 IRON PIPE CAPACITY TABLES

Table 7-23

Maximum Capacity of Steel IPS Pipe in Cubic Feet Per Hour

with a Gas Pressure of 0.5 PSI or Less and a Pressure Drop of 0.5"WC

(based on a 0.60 speciﬁc gravity gas)

Internal Nominal Iron Run Length (ft)

Diameter (in.) Pipe Size (in.) 10 20 30 40 50 60 70 80 90 100 125 150 175 200

0.364 1/4" 43 29 24 20 18 16 15 14 13 12 11 10 9 8

0.493 3/8" 95 65 52 45 40 36 33 31 29 27 24 22 20 19

0.622 1/2" 175 120 97 82 73 66 61 57 53 50 44 40 37 35

0.824 3/4" 360 250 200 170 151 138 125 118 110 103 93 84 77 72

1.049 1" 680 465 375 320 285 260 240 220 205 195 175 160 145 135

1.38 1-1/4" 1400 950 770 660 580 530 490 460 430 400 360 325 300 280

1.61 1-1/2" 2100 1460 1180 990 900 810 750 690 650 620 550 500 460 430

2.067 2" 3950 2750 2200 1900 1680 1520 1400 1300 1220 1150 1020 950 850 800

2.469 2-1/2" 6300 4350 3520 3000 2650 2400 2250 2050 1950 1850 1650 1500 1370 1280

3.068 3" 11000 7700 6250 5300 4750 4300 3900 3700 3450 3250 2950 2650 2450 2280

4.026 4" 23000 15800 12800 10900 9700 8800 8100 7500 7200 6700 6000 5500 5000 4600

Table reproduced from National Fuel Gas Code NFPA-54.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

7.7 IRON PIPE PRESSURE DROP PER FOOT TABLES

Table 7-24 (Sheet 1 of 4)

Steel IPS Pressure Drop Tables

Pressure drop per foot in inches of water column (based on Natural Gas of 0.60 speciﬁc gravity)

CFH 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2"

10 0.0 0.0 0.0 0.0 0.000 0.000 0.000

20 0.001 0.000 0.000 0.000 0.000 0.000 0.000

30 0.002 0.001 0.000 0.000 0.000 0.000 0.000

40 0.003 0.001 0.000 0.000 0.000 0.000 0.000

50 0.005 0.001 0.000 0.000 0.000 0.000 0.000

60 0.007 0.002 0.001 0.000 0.000 0.000 0.000

70 0.010 0.002 0.001 0.000 0.000 0.000 0.000

80 0.012 0.003 0.001 0.000 0.000 0.000 0.000

90 0.015 0.004 0.001 0.000 0.000 0.000 0.000

100 0.019 0.005 0.001 0.000 0.000 0.000 0.000

110 0.022 0.006 0.002 0.000 0.000 0.000 0.000

120 0.026 0.007 0.002 0.001 0.000 0.000 0.000

130 0.030 0.008 0.002 0.001 0.000 0.000 0.000

140 0.035 0.009 0.003 0.001 0.000 0.000 0.000

150 0.039 0.010 0.003 0.001 0.000 0.000 0.000

160 0.044 0.011 0.004 0.001 0.000 0.000 0.000

170 0.050 0.013 0.004 0.001 0.000 0.000 0.000

180 0.055 0.014 0.004 0.001 0.001 0.000 0.000

190 0.061 0.016 0.005 0.001 0.001 0.000 0.000

200 0.067 0.017 0.005 0.001 0.001 0.000 0.000

225 0.083 0.021 0.007 0.002 0.001 0.000 0.000

250 0.101 0.026 0.008 0.002 0.001 0.000 0.000

275 0.121 0.031 0.010 0.003 0.001 0.000 0.000

300 0.142 0.036 0.011 0.003 0.001 0.000 0.000

325 0.164 0.042 0.013 0.003 0.002 0.000 0.000

350 0.189 0.048 0.015 0.004 0.002 0.001 0.000

375 0.214 0.055 0.017 0.004 0.002 0.001 0.000

400 0.241 0.062 0.019 0.005 0.002 0.001 0.000

425 0.270 0.069 0.021 0.006 0.003 0.001 0.000

450 0.300 0.077 0.024 0.006 0.003 0.001 0.000

475 0.332 0.085 0.026 0.007 0.003 0.001 0.000

500 0.365 0.093 0.029 0.008 0.004 0.001 0.000

525 0.399 0.102 0.032 0.008 0.004 0.001 0.000

550 0.435 0.111 0.034 0.009 0.004 0.001 0.001

575 0.472 0.121 0.037 0.010 0.005 0.001 0.001

600 0.511 0.131 0.041 0.011 0.005 0.002 0.001

625 0.551 0.141 0.044 0.012 0.005 0.002 0.001

650 0.592 0.151 0.047 0.012 0.006 0.002 0.001

675 0.635 0.162 0.050 0.013 0.006 0.002 0.001

700 0.679 0.174 0.054 0.014 0.007 0.002 0.001

725 0.724 0.185 0.057 0.015 0.007 0.002 0.001

750 0.771 0.197 0.061 0.016 0.008 0.002 0.001

775 0.820 0.210 0.065 0.017 0.008 0.002 0.001

800 0.869 0.222 0.069 0.018 0.009 0.003 0.001

Tables calculated from National Fuel Gas Code NFPA-54 tables. 7.7

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 95

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-24 (Sheet 2 of 4)

Steel IPS Pressure Drop Tables

Pressure drop per foot in inches of water column (based on Natural Gas of 0.60 speciﬁc gravity)

CFH 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2"

825 0.920 0.235 0.073 0.019 0.009 0.003 0.001

850 0.972 0.249 0.077 0.020 0.010 0.003 0.001

875 1.026 0.262 0.081 0.022 0.010 0.003 0.001

900 1.080 0.276 0.086 0.023 0.011 0.003 0.001

925 1.137 0.291 0.090 0.024 0.011 0.003 0.001

950 1.194 0.305 0.095 0.025 0.012 0.004 0.001

975 1.253 0.320 0.099 0.026 0.012 0.004 0.002

1000 1.313 0.336 0.104 0.028 0.013 0.004 0.002

1050 1.437 0.367 0.114 0.030 0.014 0.004 0.002

1100 1.566 0.400 0.124 0.033 0.016 0.005 0.002

1150 1.700 0.435 0.135 0.036 0.017 0.005 0.002

1200 1.839 0.470 0.146 0.039 0.018 0.005 0.002

1250 1.983 0.507 0.157 0.042 0.020 0.006 0.002

1300 2.132 0.545 0.169 0.045 0.021 0.006 0.003

1350 2.286 0.585 0.181 0.048 0.023 0.007 0.003

1400 2.445 0.625 0.194 0.051 0.024 0.007 0.003

1450 2.609 0.667 0.207 0.055 0.026 0.008 0.003

1500 2.778 0.710 0.220 0.058 0.028 0.008 0.003

1550 2.951 0.755 0.234 0.062 0.029 0.009 0.004

1600 3.130 0.800 0.248 0.066 0.031 0.009 0.004

1650 3.313 0.847 0.263 0.070 0.033 0.010 0.004

1700 3.501 0.895 0.278 0.073 0.035 0.010 0.004

1750 3.693 0.945 0.293 0.078 0.037 0.011 0.005

1800 3.891 0.995 0.309 0.082 0.039 0.012 0.005

1850 4.093 1.047 0.325 0.086 0.041 0.012 0.005

1900 4.300 1.100 0.341 0.090 0.043 0.013 0.005

1950 4.511 1.154 0.358 0.095 0.045 0.013 0.006

2000 4.727 1.209 0.375 0.099 0.047 0.014 0.006

2050 4.948 1.266 0.393 0.104 0.049 0.015 0.006

2100 5.173 1.323 0.410 0.109 0.051 0.015 0.006

2150 5.403 1.382 0.429 0.113 0.054 0.016 0.007

2200 5.638 1.442 0.447 0.118 0.056 0.017 0.007

2250 5.877 1.503 0.466 0.123 0.058 0.017 0.007

2300 6.121 1.565 0.486 0.128 0.061 0.018 0.008

2350 6.369 1.629 0.505 0.134 0.063 0.019 0.008

2400 6.622 1.694 0.525 0.139 0.066 0.020 0.008

2450 6.879 1.759 0.546 0.144 0.068 0.020 0.009

2500 7.141 1.826 0.567 0.150 0.071 0.021 0.009

2550 7.407 1.894 0.588 0.155 0.074 0.022 0.009

2600 7.677 1.964 0.609 0.161 0.076 0.023 0.010

2650 7.953 2.034 0.631 0.167 0.079 0.024 0.010

2700 8.232 2.105 0.653 0.173 0.082 0.024 0.010

2750 8.516 2.178 0.676 0.179 0.085 0.025 0.011

2800 8.805 2.252 0.699 0.185 0.088 0.026 0.011

Tables calculated from National Fuel Gas Code NFPA-54 tables.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-24 (Sheet 3 of 4)

Steel IPS Pressure Drop Tables

Pressure drop per foot in inches of water column (based on Natural Gas of 0.60 speciﬁc gravity)

CFH 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2"

2850 9.097 2.327 0.722 0.191 0.090 0.027 0.011

2900 9.395 2.403 0.745 0.197 0.093 0.028 0.012

2950 9.696 2.480 0.769 0.204 0.096 0.029 0.012

3000 10.002 2.558 0.794 0.210 0.099 0.030 0.013

3050 10.312 2.638 0.818 0.216 0.103 0.031 0.013

3100 10.627 2.718 0.843 0.223 0.106 0.031 0.013

3150 10.946 2.800 0.868 0.230 0.109 0.032 0.014

3200 11.269 2.882 0.894 0.237 0.112 0.033 0.014

3250 11.597 2.966 0.920 0.243 0.115 0.034 0.015

3300 11.929 3.051 0.946 0.250 0.119 0.035 0.015

3350 12.265 3.137 0.973 0.257 0.122 0.036 0.015

3400 12.606 3.224 1.000 0.265 0.125 0.037 0.016

3450 12.951 3.312 1.028 0.272 0.129 0.038 0.016

3500 13.300 3.402 1.055 0.279 0.132 0.039 0.017

3550 13.653 3.492 1.083 0.287 0.136 0.040 0.017

3600 3.583 1.112 0.294 0.139 0.041 0.018

3650 3.676 1.140 0.302 0.143 0.043 0.018

3700 3.770 1.169 0.309 0.147 0.044 0.018

3750 3.864 1.199 0.317 0.150 0.045 0.019

3800 3.960 1.228 0.325 0.154 0.046 0.019

3850 4.057 1.258 0.333 0.158 0.047 0.020

3900 4.155 1.289 0.341 0.161 0.048 0.020

3950 4.254 1.320 0.349 0.165 0.049 0.021

4000 4.354 1.351 0.357 0.169 0.050 0.021

4050 4.455 1.382 0.366 0.173 0.052 0.022

4100 4.557 1.414 0.374 0.177 0.053 0.022

4150 4.660 1.446 0.382 0.181 0.054 0.023

4200 4.765 1.478 0.391 0.185 0.055 0.023

4250 4.870 1.511 0.400 0.189 0.056 0.024

4300 4.976 1.544 0.408 0.193 0.058 0.024

4350 5.084 1.577 0.417 0.198 0.059 0.025

4400 5.193 1.611 0.426 0.202 0.060 0.025

4450 5.302 1.645 0.435 0.206 0.061 0.026

4500 5.413 1.679 0.444 0.210 0.063 0.026

4550 5.524 1.714 0.453 0.215 0.064 0.027

4600 5.637 1.749 0.463 0.219 0.065 0.028

4650 5.751 1.784 0.472 0.224 0.067 0.028

4700 5.866 1.820 0.481 0.228 0.068 0.029

4750 5.982 1.856 0.491 0.233 0.069 0.029

4800 6.099 1.892 0.501 0.237 0.071 0.030

4850 6.216 1.928 0.510 0.242 0.072 0.030

4900 6.335 1.965 0.520 0.246 0.073 0.031

Tables calculated from National Fuel Gas Code NFPA-54 tables.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 97

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

Table 7-24 (Sheet 4 of 4)

Steel IPS Pressure Drop Tables

Pressure drop per foot in inches of water column (based on Natural Gas of 0.60 speciﬁc gravity)

CFH 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2"

4950 6.455 2.003 0.530 0.251 0.075 0.032

5000 6.577 2.040 0.540 0.256 0.076 0.032

5100 6.822 2.116 0.560 0.265 0.079 0.033

5200 7.071 2.194 0.580 0.275 0.082 0.035

5300 7.324 2.272 0.601 0.285 0.085 0.036

5400 7.582 2.352 0.622 0.295 0.088 0.037

5500 7.843 2.433 0.644 0.305 0.091 0.038

5600 8.109 2.516 0.666 0.315 0.094 0.040

5700 8.379 2.599 0.688 0.326 0.097 0.041

5800 8.652 2.684 0.710 0.336 0.100 0.042

5900 8.930 2.770 0.733 0.347 0.103 0.044

6000 9.212 2.858 0.756 0.358 0.107 0.045

6100 9.498 2.946 0.780 0.369 0.110 0.046

6200 9.788 3.036 0.803 0.380 0.113 0.048

6300 10.081 3.127 0.827 0.392 0.117 0.049

6400 10.379 3.220 0.852 0.403 0.120 0.051

6500 10.681 3.313 0.877 0.415 0.124 0.052

6600 10.987 3.408 0.902 0.427 0.127 0.054

6700 11.296 3.504 0.927 0.439 0.131 0.055

6800 11.610 3.602 0.953 0.451 0.134 0.057

6900 11.927 3.700 0.979 0.464 0.138 0.058

7000 12.249 3.800 1.005 0.476 0.142 0.060

7100 12.574 3.901 1.032 0.489 0.146 0.061

7200 12.904 4.003 1.059 0.502 0.149 0.063

7300 13.237 4.106 1.086 0.515 0.153 0.065

7400 13.574 4.211 1.114 0.528 0.157 0.066

7500 4.317 1.142 0.541 0.161 0.068

7750 4.586 1.213 0.575 0.171 0.072

8000 4.864 1.287 0.609 0.181 0.077

8250 5.148 1.362 0.645 0.192 0.081

8500 5.440 1.439 0.682 0.203 0.086

8750 5.740 1.519 0.719 0.214 0.090

9000 6.046 1.600 0.758 0.226 0.095

9250 6.361 1.683 0.797 0.237 0.100

9500 6.682 1.768 0.837 0.249 0.105

9750 7.011 1.855 0.878 0.262 0.111

10000 7.346 1.944 0.921 0.274 0.116

11000 8.762 2.318 1.098 0.327 0.138

12000 10.291 2.723 1.289 0.384 0.162

13000 11.931 3.157 1.495 0.445 0.188

14000 13.683 3.620 1.715 0.511 0.216

15000 4.113 1.948 0.580 0.245

Tables calculated from National Fuel Gas Code NFPA-54 tables.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

SECTION 7: SIZING TABLES & PRESSURE DROP CHARTS / SEPTEMBER 2017

7.8 REFERENCE DATA

Table 7-25

Pressure Conversion Factors Fuel Gas Information

1/4 PSI = 6.921"WC = (approx. 7"WC) Natural Gas Propane

1/2 PSI = 13.842"WC = (approx. 14"WC) BTU per Cubic Foot = 1000 2516

1 PSI = 27.684"WC = (approx. 28"WC) Speciﬁc Gravity = 0.60 1.52

2 PSI = 55.368"WC = (approx. 56"WC) Note: “Pressure Drop Curves for Gastite®/FlashShield CSST” are

expressed in terms of Cubic Feet per Hour (CFH). To determine the

CFH for Natural Gas, divide the BTU load by 1000. To determine

the CFH for Propane, divide the BTU load by 2516.

5 PSI = 138.42"WC = (approx. 140"WC)

Table 7-26

Pressure Conversion Factors Fuel Gas Information

Gas piping systems that are to be supplied with gas of a speciﬁc gravity other than 0.60 shall apply a speciﬁc gravity factor.

e conversion is accomplished by multiplying the capacities given in the tables, charts and graphs by the appropriate

multiplier from the table below. In case the exact speciﬁc gravity does not appear in the table, choose the next higher value

shown. Check with the local gas utility or supplier for the correct speciﬁc gravity.

Options:

1. Using Table A-5 the ﬂow capacity of 1/2" CSST at 50 ft, for natural gas with a speciﬁc gravity of 0.60 is 266

CFH. At a speciﬁc gravity of 0.65 the resultant value in the table will be 255 CFH (266 x 0.96).

2. A furnace rated at 80,000 BTUH natural gas with a speciﬁc gravity of 0.60 will be rated at 76,800 BTUH natural

gas with a speciﬁc gravity of 0.65 (80,000/0.96).

Speciﬁc Gravity Multiplier Speciﬁc Gravity Multiplier

0.35 1.31 1.00 0.78

0.40 1.23 1.10 0.74

0.45 1.16 1.20 0.71

0.50 1.10 1.30 0.68

0.55 1.04 1.40 0.66

0.60 1.00 1.50 0.63

0.65 0.96 1.60 0.61

0.70 0.93 1.70 0.59

0.75 0.90 1.80 0.58

0.80 0.87 1.90 0.56

0.85 0.84 2.00 0.55

0.90 0.82 2.10 0.54

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 99

SECTION 8: DEFINITIONS / SEPTEMBER 2017

SECTION 8.0 DEFINITIONS

APPLIANCE (EQUIPMENT) – Any device which utilizes gas as a fuel or raw material to produce light, heat, power,

refrigeration or air conditioning.

APPROVED – Acceptable to the authority having jurisdiction.

ARC RESISTANT PROTECTIVE JACKET (AR) – A protective jacket over the CSST which has been tested and listed

to the optional sec. 5.16 of ANSI LC1/CSA 6.26, for lightning electrical arcing protection performance.

AUTHORITY HAVING JURISDICTION – e organization, oﬃce or individual responsible for “approving”

equipment, an installation or procedure.

BONDING (BONDED) – e permanent joining of metallic parts to form an electrically conductive path that ensures

electrical continuity and the capacity to conduct safely any current likely to be imposed. As per the National Electrical

Code.

CAPACITY, FLOW – As used in this standard, the amount of a speciﬁed gas that will ﬂow through a speciﬁc length and

conﬁguration of tubing, a manifold, ﬁtting or other component at a speciﬁed pressure drop in a ﬁxed period of time.

CONCEALED GAS TUBING – Gas tubing, which, when in place in a ﬁnished building, would require removal of

permanent construction to gain access to the piping.

CONNECTOR, GAS APPLIANCE – A factory-fabricated assembly of gas conduit and related ﬁttings designed to

convey gaseous fuel, and used for making connections between a gas supply piping outlet and the gas to an appliance. It is

equipped at each end for attachment to standard taper pipe threads.

CONTINUOUS METALLIC SYSTEMS – Potential pathways for electricity to ground i.e. metallic chimney and vents,

metallic ducting and piping, insulated or jacketed electrical cables and wires.

DIRECT BONDING – Bonding, as above, where the electrical connection is made using a clamp and wire at the piping

connected directly to the existing grounding system.

EFFECTIVE GROUND-FAULT CURRENT PATH – An intentionally constructed, permanent, low impedance

electrically conductive path designed and intended to carry under ground fault conditions from the point of a ground fault

on a wiring system to the electrical supply source.

EQUIVALENT HYDRAULIC DIAMETER (EHD) – A theoretical size, which reﬂects the hydraulic performance of the

tubing. It is not true physical measurement.

EXPOSED GAS TUBING – Gas tubing which will be in view in the ﬁnished structure.

FUEL GAS – A commonly distributed gas used for fuel such as natural gas, manufactured gas, undiluted liqueﬁed

petroleum gas (vapor phase only), liqueﬁed petroleum gas-air mixtures of these gases (includes propane and butane).

GAS UTILIZATION EQUIPMENT – Any device that utilizes gas as a fuel or raw material or both.

INCHES OF WATER COLUMN ("WC) – Method of pressure measured in inches of water column by a manometer or

pressure gauge. Commonly used in the gas industry when the pressure is less than 1 PSI.

INSULATIVE POLYMER COVER – e outer jacket is designed and tested to protect the CSST gas vessel from

electrical system fault-current arcs.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

100

SECTION 8: DEFINITIONS / SEPTEMBER 2017

LEAK TEST SOLUTION – A solution of commercial leak-testing ﬂuids may be used. e use of soap buds or household

detergents and water is not considered a satisfactory leak-test ﬂuid for a bubble test, because of a lack of sensitivity due to

masking by foam. e ﬂuid should be capable of being applied free of bubbles so that a bubble appears only at a leak. e

ﬂuid selected should not bubble except in response to a leak.

LISTED – Equipment or materials including a list published by an organization acceptable to the authority having

jurisdiction and concerned with product evaluation that maintains periodic inspection of production of listed equipment

or materials and whose listing states either that the equipment or materials meets appropriate standards or has been tested

and found suitable for use in a speciﬁed manner.

LOCKUP PRESSURE, REGULATOR – e system pressure, immediately downstream of the regulator, at which the

regulator valve will completely close (leak tight) under no-ﬂow conditions to prevent the downstream pressure from

exceeding a predetermined level.

MAXIMUM ACTUAL OPERATING PRESSURE – e maximum pressure existing in a piping system during a normal

annual operating cycle.

OVER-PRESSURE PROTECTION DEVICE (OPD) – System component that is intended to protect all downstream

components from high pressures in the event of a system failure. OPDs are required in gas systems using more than 2 PSI

line pressure.

PIPING SYSTEM – As used in this standard, an assembly of corrugated stainless steel tubing and tubing connection

ﬁttings, intended for ﬁeld assembly and installation in residential or commercial buildings to distribute fuel gas to gas

utilization equipment within the building. e piping system may also include a gas pressure regulator(s), a shutoﬀ

valve(s), tube shielding devices, distribution manifold(s), and other approved devices or components.

PLENUM – A plenum is an enclosed portion of the building structure that is designed to allow air movement, and

thereby serve as part of an air distribution system.

PRESSURE DROP – e loss in static pressure of ﬂowing fuel gas due to friction or other ﬂow resistance in tubing,

ﬁttings, valves, regulators, or other devices in the piping system.

QUALIFIED INSTALLER – Any individual, ﬁrm, corporation or company which either in person or through a

representative is engaged in and is responsible for the installation or replacement of building gas piping systems, who

is experienced in such work, familiar with all precautions required, and has complied with all the requirements of the

authority having jurisdiction.

QUICK-DISCONNECT DEVICE – A hand-operated device which provides a means for connecting and disconnecting

an appliance or an appliance connector to a gas supply, and which is equipped with an automatic means to shut oﬀ the gas

supply when the device is disconnected.

REGULATOR, PRESSURE – A device placed in a gas line for reducing, controlling and maintaining the pressure in that

portion of the piping system downstream of the device.

SHIELDING DEVICE – A component of the piping system used to protect the installed corrugated tubing from

accidental puncture by nails, screws or similar hardware at concealed tubing support points.

STRIKER PLATE – A special type of shielding device used when concealed tubing is run through wall studs, ﬂoor and

ceiling joists or other structural members where tubing movement is restricted.

VALVE, SHUTOFF – A device used in piping to control the gas supply to any section of the piping system or to an

appliance.

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 101

SECTION 9: DIMENSIONAL & TECHNICAL REFERENCE DATA / SEPTEMBER 2017

SECTION 9.0

DIMENSIONAL & TECHNICAL REFERENCE DATA

9.1 GASTITE® AND FLASHSHIELD™ DIMENSIONAL AND TECHNICAL REFERENCE DATA

Table 9-1

Corrugated Stainless Steel Tubing – Dimensional Values

Size (Nom. I.D.) 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"

FlashShield™ Part Number -- FS-8 FS-11 FS-16 FS-20 FS-24 FS-32

Gastite Part Number S93-6A4 S93-8A4 S93-11B4 S93-16A4 S93-20A4 S93-24A4 S93-32A4

Equivalent Hydraulic Diameter (EHD) 13 19 23 31 37 48 60

Inside Nominal Diameter (in.) 0.39 0.58 0.75 1.04 1.25 1.48 1.98

Outside Diameter (w/o jacket) (in.) 0.51 0.72 0.92 1.26 1.50 1.75 2.32

FlashShield™ Outside Diameter, w/jacket (in.)

-- 0.83 1.03 1.37 1.61 1.87 2.48

Gastite Outside Diameter, w/jacket (in.) 0.56 0.76 0.98 1.30 1.55 1.79 2.40

Length of Standard Reels (Ft) 50-1,000 50-1,000 50-500 50-300 50-300 50-300 50-150

CSST Wall ickness (in.) 0.01 0.01 0.01 0.01 0.011 0.011 0.012

Table 9-2

"XR" Series Straight Fitting – Dimensional Values

Fits CSST Size 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"

XR Series Fitting Part Number XR2FTG-6 XR3FTG-8 XR3FTG-11 XR3FTG-16 XR3FTG-20 XR3FTG-24 XR3FTG-32

Pipe read (NPT) 1/2" 1/2" 3/4" 1" 1 1/4" 1-1/2" 2"

Adapter Hex Size 7/8" 1-1/8" 1-3/8" 1-3/4" 2" 2-5/16" 3"

Nut Hex Size 1" 1-1/4" 1-9/16" 1-15/16" 2-3/16" 2-9/16" 3-1/4"

Overall Length (in.) 1.93 1.61 1.82 2.01 2.15 2.32 2.66

Table 9-3

"XR" Series Termination Fitting – Dimensional Values

Fits CSST Size 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"

Fitting Part Number XR2TRM-6 XR3TRM-8 XR3TRM-11 XR3TRM-16 XR3TRM-20 XR3TRM-24 XR3TRM-32

Pipe read (NPT) 1/2" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"

Flange read (NPT) 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2"

Square Flange Outside Dimension 2-5/8" 2-5/8" 2-5/8" 2-5/8" 3-1/4" 3-1/4" 3-5/8"

Mounting Hole Pattern Diameter 2-3/4" 2-3/4" 2-3/4" 2-3/4" 3-1/4" 3-1/4" 4"

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

102

SECTION 9: DIMENSIONAL & TECHNICAL REFERENCE DATA / SEPTEMBER 2017

9.2.A GASTITE® SPECIFICATION SHEET

ALL SYSTEM COMPONENTS ARE CSA APPROVED

SYSTEM PERFORMANCE

PRESSURE RATING

Tubing:

Maximum Approved Operating Pressure 25 PSI

Tubing Minimum Burst Pressure 1,500 PSI

Maximum Test Pressure 3/8", 1/2" & 3/4": 150 PSI

1": 125 PSI

1-1/4": 100 PSI

1-1/2": 50 PSI

2": 40 PSI

TEMPERATURE LIMITS

Stainless Steel Melting Point: 2,400°F

Plastic Jacket Melting Point: 205°F

Plastic Jacket Minimum Installation Temp (for bending): -40°F

Plastic Jacket Maximum Operating Temp: 160°F

SYSTEM MATERIALS

CORRUGATED STAINLESS STEEL TUBING

Tubing: ASTM A240 Type 304 Stainless Steel

Jacket: Electrically insulative and UV resistant polymer, complying with ASTM E84 and

CAN/ULC-S102.2 25/50.

FITTING MATERIAL

Mechanical Joint Fitting:

Adapter: CA360 Brass

Nut: CA360 Brass

Split Bushings: CA360 Brass

Termination Fitting:

Adapter: CA360 Brass

Nut: CA360 Brass

Split Bushing: CA360 Brass

Flange: Square Flange – Steel with Zinc Coating

PROTECTION DEVICES

Striker Plates: 16 Gage AISI 1050 Carbon Steel Hardened to Rc 45 with Black Oil and Phosphate Coating

Floppy Conduit: Strip Wound Interlocking Steel (Heavy Wall)

ACCESSORIES

Valves: Meet requirements of ANSI/ASME B16.33 (125 PSI) or AGA 3-88 (5 PSI)

Regulators: Gas line pressure regulator std. ANSI/CGA Z21.80, CGA-6.22 with vent limiting device

Manifolds Cast: ASTM A47 32510 Malleable Iron

Welded: Welded IPS Schedule 40

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 103

SECTION 9: DIMENSIONAL & TECHNICAL REFERENCE DATA / SEPTEMBER 2017

9.2.B FLASHSHIELD™ SPECIFICATION SHEET

ALL SYSTEM COMPONENTS ARE CSA APPROVED

SYSTEM PERFORMANCE

PRESSURE RATING

Tubing:

Maximum Approved Operating Pressure 25 PSI

Tubing Minimum Burst Pressure 1,500 PSI

Maximum Test Pressure 1/2" & 3/4": 150 PSI

1": 125 PSI

1-1/4": 100 PSI

1-1/2": 50 PSI

2": 40 PSI

TEMPERATURE LIMITS

Stainless Steel Melting Point: 2,400°F

Plastic Jacket Melting Point: 205°F

Plastic Jacket Minimum Installation Temp (for bending): -40°F

Plastic Jacket Maximum Operating Temp: 160°F

SYSTEM MATERIALS

CORRUGATED STAINLESS STEEL TUBING

Tubing: ASTM A240 Type 304 Stainless Steel

Jacket: Electrically insulative and UV resistant polymer, complying with ASTM E84 and

CAN/ULC-S102.2 25/50.

FITTING MATERIAL

Mechanical Joint Fitting:

Adapter: CA360 Brass

Nut: CA360 Brass

Split Bushings: CA360 Brass

PROTECTION DEVICES

Striker Plates: 16 Gage AISI 1050 Carbon Steel Hardened to Rc 45 with Black Oil and Phosphate Coating

Floppy Conduit: Strip Wound Interlocking Steel (Heavy Wall)

ACCESSORIES

Valves: Meet requirements of ANSI/ASME B16.33 (125 PSI) or AGA 3-88 (5 PSI)

Regulators: Gas line pressure regulator std. ANSI/CGA Z21.80, CGA-6.22 with vent limiting device

Manifolds Cast: ASTM A47 32510 Malleable Iron

Welded: Welded IPS Schedule 40

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com

104

SECTION 10: WARRANTY / SEPTEMBER 2017

SECTION 10.0 WARRANTY

WARRANTY

GASTITE® FLEXIBLE GAS PIPING SYSTEM

FLASHSHIELD™ FLEXIBLE GAS PIPING SYSTEM

Gastite Division warrants its products to be free from any defect of workmanship and material. Should any such defects be

discovered, the questionable product must be returned to Gastite Division. If, upon inspection, the part proves to be defective,

Gastite Division will furnish a replacement, or, at its option, repair the part.

is warranty shall not apply to any part or parts of the Gastite®/FlashShield™ Flexible Gas Piping System product if it has

been installed, altered, repaired or misused, through negligence or otherwise, in a way that in the opinion of Gastite Division

aﬀects the reliability of, or detracts from, the performance of the product. Nor does this warranty cover replacements or repairs

necessitated by loss or damage resulting from any cause beyond the control of Gastite Division, including but not limited to,

acts of God, acts of government, ﬂoods and ﬁres.

e obligation of Gastite Division under this warranty is limited, at Gastite Division’s discretion, to 1) making a replacement

part available, 2) the repair of the defective part, or 3) refund of purchase price. is does not include the furnishing of any

labor involved or connected therewith, such as that required to diagnose trouble or to remove or install any such product, nor

does it include responsibility for any transportation expenses or any damages or losses incurred in transportation in connection

therewith.

THE FOREGOING IS IN LIEU OF ANY OTHER WARRANTIES EXPRESSED, IMPLIED OR STATUTORY,

INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY, AND GASTITE

DIVISION NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR GASTITE DIVISION ANY

OTHER OBLIGATION OR LIABILITY IN CONNECTION WITH THE SALE OF ITS PRODUCTS

INSTALLATION REQUIREMENTS

1) Installation must be performed strictly in accordance with local plumbing and/or building codes, and in accordance with

Gastite®/FlashShield™ Design and Installation Guide.

2) Installation must be performed by an installer who has successfully completed a training program recognized by Gastite

Division and has been issued a Certiﬁcation Card. Certiﬁcations are available through qualiﬁed distributors, and at

www.gastite.com.

3) Pressure testing must be performed during rough construction with piping system exposed.

4) Gastite Division assumes no responsibility for product or labor for any system which has been improperly installed.

SEPTEMBER 2017

GASTITE®/FLASHSHIELD™ FLEXIBLE GAS PIPING

TRAINING PROGRAM TEST

ADMINISTERED ONLY AFTER COMPLETION OF AUTHORIZED GASTITE®/FLASHSHIELD™ TRAINING COURSE.

Circle the appropriate answer.

(ONLINE SECTIONS 1 & 2)

1) Gastite/FlashShield CSST must be installed by a

qualiﬁed installer who has successfully completed the

certiﬁcation program.

True False

2) e Jacket Stripping Tool is used to achieve the

necessary end preparation of the FlashShield CSST to

the XR3 Fitting.

True False

3) Gastite recommends review of gastite.com for

information and updates approximately ____.

a) Never

b) Yearly

c) Every 10 years

4) In the event of a conﬂict between the Installation

Guide and the local code the more stringent

requirement will take precedence.

True False

5) Gastite/FlashShield CSST is approved for use at

pressures up to ____ PSI.

a) 5

b) 15

c) 25

6) Gastite/FlashShield is approved for both natural gas

and propane.

True False

(ONLINE SECTION 3)

7) Starting pressure, appliance input demands (pressure

and CFH), and length of run/longest run information

are all required to size gas piping systems.

True False

8) e longest run is the length of piping from the

gas source to the most remote appliance served

by that gas pressure source.

True False

9) Dual pressure systems will require the use of 2 separate

sizing tables; one for the elevated pressure side of

the regulator and one for the low pressure side of

the regulator.

True False

10) Sizing tables can be found;

a) Within the Gastite/FlashShield Installation Guide

b) On the Website

c) On the Gastite Mobile App

d) All of the Above

(ONLINE SECTION 4)

11) Clearance holes for routing CSST are to be

approximately ____ greater than the O.D. of the

tubing.

a) ½"

b) ¾"

c) 1"

12) Gastite/FlashShield can be directly buried in

the ground.

True False

13) Gastite/FlashShield can be directly connected to a

moveable appliance.

True False

14) Strike protection is required whenever the Gastite/

FlashShield is concealed and constrained and within

3” of a threat.

True False

15) Only strike plates provided by Gastite may be used to

protect Gastite/FlashShield CSST.

True False

16) When installed along the outside of a structure

between the ground and a height of 6 ft the CSST

shall be protected from mechanical damage.

True False

SEPTEMBER 2017

17) Gastite yellow CSST must be direct bonded with a

clamp and minimum #6 wire.

True False

(ONLINE SECTIONS 5 & 6)

18 Direct contact between Gastite yellow CSST and

continuous metallic systems is prohibited.

True False

19) Gastite yellow CSST shall not be installed within a chase

and/or enclosure that includes a metallic vent or metallic

chimney liner that protrudes through or past the roof.

True False

20 If the tubing is crushed beyond ____ its diameter that

piece shall be replaced.

a) ¼

b) ⅓

c) ½

21) It is recommended that tears greater than ½" in

the outer jacket of FlashShield™ be wrapped with

electrical tape or self-bonding silicone tape.

True False

22) Tears greater than ½" in the metal shield layer of

FlashShield require that the aﬀected area be cut out

and replaced, or treated as yellow CSST with regards

to bonding and separation.

True False

23) Tears in the jacket of CSST outdoor or in areas

where chlorides may be present shall be wrapped

with a self bonding silicone tape.

True False

24) Regulators do not need to be isolated or removed for

pressure test.

True False

25) Pressure testing should be done during rough

construction.

True False

26) Leak check solution must be labeled as non-corrosive.

True False

e following person has successfully completed the Gastite®/FlashShield™

Certiﬁcation Training Program and is hereby recognized as a

Qualiﬁed Installer

Name Instructor

Company Issue Date

Certiﬁcate No.

1-800-662-0208 / www.gastite.com

Valid for 90 Days from Date of Issue

PLEASE PRINT CLEARLY OR YOU WILL NOT RECEIVE YOUR PERMANENT CERTIFICATE

Name: Date:

Signature:

Company: Title:

Address:

City: State: Zip Code:

E-Mail:

Personal data will not be shared outside of Gastite® and will be used to update you on product updates and changes.

Instructor:

CERTIFICATE #

GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148

800.662.0208 / www.gastite.com / gastite@gastite.com 107

SEPTEMBER 2017

NOTES

GASTITE DIVISION, TITEFLEX CORPORATION

1116 VAUGHN PARKWAY

PORTLAND, TN 37148

TOLL FREE: 800.662.0208

FAX: 615.325.9407

E-MAIL: GASTITE@GASTITE.COM

WWW.GASTITE.COM

DI-GUIDE-CA

REV. SEPTEMBER 2017

DI 104B Gastite Guide

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