DI 104B Gastite Guide
User Manual: DI 104B
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D E S I G N A N D I N S TA L L AT I O N G U I D E
Commercial I Industrial I Residential
SEPTEMBER 2017
www.gastite.com
SECTION 1: INTRODUCTION / SEPTEMBER 2017
Important Lightning Safety Warning
L IGH T NING SA F E T Y WA RNING
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 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: Alabama, Arkansas, Florida,
Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana,
Maryland, Michigan, Mississippi, Missouri, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, South
Carolina, Tennessee, Texas, Virginia 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.
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.
www.gastite.com
© 2013, Gastite Division, Titeflex Corporation
GENERAL 1/20/13
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 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.
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.
Proper FlashShield End Prep
Proper XR3 Bushing Placement
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. The 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.
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
iii
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 GASTITE® 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 INTRODUCTION............................................................................................................................................ 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
iv
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
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 INSTALLATION............................................................................................................................................. 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
v
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.
The 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. The 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.
This document provides the user with general guidance when designing and installing fuel gas piping using Gastite®
or FlashShield™ Flexible Gas Piping. This 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.
The 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.
This 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.
2
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)
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. 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®/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. 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.
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. 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.
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)
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. Ammonia 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.
4
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
1.2
LIMITATIONS OF THE GUIDELINES
This 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. Therefore, 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.
The techniques outlined within this guideline are recommended practice for generic applications. These 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
The 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
5
SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017
SECTION 2.0 SYSTEM DESCRIPTIONS & COMPONENTS
2.1
SYSTEM DESCRIPTIONS
2.1.1
GASTITE® SYSTEM DESCRIPTION
a) The 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. This 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. The ANSI LC1 standard rates CSST for use at
pressures up to 25 PSI.
b) The tubing is connected using XR3 mechanical brass fittings designed specifically for Gastite® CSST.
• The self-flaring fitting creates a one step, reusable, metal on metal seal.
• Corrosion resistant brass fittings incorporate the Gastite® patented Jacket-Lock™ feature. The 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) The polymer jacket is extruded over the stainless steel tubing creating a flexible, protective covering. The jacket is an
added feature of the tubing and does not affect the flaring/sealing process.
• The jacket provides an electrically insulative cover over the CSST gas vessel.
• The jacket is engineered with thermal and UV resistant material making it suitable for outdoor use.
• The polymer jacket creates a smooth outside surface; this surface greatly aids in pulling the tube through tight building
spaces.
• The polymer jacket blend contains flame and smoke additives making it ASTM E84 and CAN/ULC-S102.2 25/50
compliant.
d) The 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. These differences are described as follows:
• In many applications, the tubing is sized for individual gas appliance loads and is, therefore, usually small in diameter. The
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.
6
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
2.1.2
FLASHSHIELD™ SYSTEM DESCRIPTION
a) The 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. This 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.
The 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) The tubing is connected using XR3 mechanical brass fittings designed specifically for FlashShield CSST.
• The self-flaring fitting creates a one step, reusable, metal on metal seal.
• Fitting creates metal shield-to-fitting electrical connectivity.
• The 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) The multi-layered jacket is fabricated over the stainless steel tubing to provide a flexible, protective covering. The 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.
The jacket is engineered with thermal and UV resistant material making it suitable for outdoor use.
The jacket provides a smooth outside surface; this surface greatly aids in pulling the tube through tight building spaces.
The polymer jacket blend contains flame and smoke additives making it ASTM E84 and CAN/ULC-S102.2 25/50
compliant.
d) The 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. These differences are described as follows:
• In many applications, the tubing is sized for individual gas appliance loads and is, therefore, usually small in diameter. The
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
2.2
COMPONENTS
2.2.1
CORRUGATED STAINLESS STEEL TUBING
GASTITE CORRUGATED STAINLESS STEEL TUBING (CSST)
Part No.
S93-6A4-250
Description
3/8" Corrugated Stainless Steel Tubing
S93-6A4-50*
S93-6A4-125
S93-6A4-500
S93-6A4-1000
CSST
S93-8A4-250
50 Ft/Box
125 Ft/Coil
500 Ft/Coil
1000 Ft/Coil
1/2" Corrugated Stainless Steel Tubing
S93-8A4-25
S93-8A4-50*
S93-8A4-125
S93-8A4-500
S93-8A4-1000
S93-8A4-1500
S93-11B4-250
3/4" Corrugated Stainless Steel Tubing
1" Corrugated Stainless Steel Tubing
1-1/4" Corrugated Stainless Steel Tubing
150 Ft/Coil
50 Ft/Coil
75 Ft/Coil
300 Ft/Coil
1-1/2" Corrugated Stainless Steel Tubing
S93-24A4-50
S93-24A4-75
S93-24A4-300
S93-32A4-150
150 Ft/Coil
50 Ft/Box
75 Ft/Coil
300 Ft/Coil
500 Ft/Coil
S93-20A4-50
S93-20A4-75
S93-20A4-300
S93-24A4-150
250 Ft/Coil
25 Ft/Coil
50 Ft/Box
125 Ft/Coil
500 Ft/Coil
1000 Ft/Coil
S93-16A4-50*
S93-16A4-75
S93-16A4-300
S93-16A4-500
S93-20A4-150
250 Ft/Coil
25 Ft/Coil
50 Ft/Box
125 Ft/Coil
500 Ft/Coil
1000 Ft/Coil
1500 Ft/Coil
S93-11B4-25
S93-11B4-50*
S93-11B4-125
S93-11B4-500
S93-11B4-1000
S93-16A4-150
Pkg. Qty.
250 Ft/Coil
150 Ft/Coil
50 Ft/Coil
75 Ft/Coil
300 Ft/Coil
2" Corrugated Stainless Steel Tubing
S93-32A4-50
S93-32A4-75
S93-32A4-300
150 Ft/Coil
50 Ft/Coil
75 Ft/Coil
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
•
•
•
•
8
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
SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017
2.2.1
CORRUGATED STAINLESS STEEL TUBING
FLASHSHIELD™ CORRUGATED STAINLESS STEEL TUBING (CSST)
Part No.
FS-8-250
Description
1/2" FlashShield™ Corrugated Stainless Steel Tubing
FS-8-25 *
FS-8-50 *
FS-8-125
FS-8-500
FS-8-1000
FS-8-1500
CSST
FS-11-250
25 Ft/Coil
50 Ft/Box
125 Ft/Coil
500 Ft/Coil
1000 Ft/Coil
1500 Ft/Coil
3/4" FlashShield™ Corrugated Stainless Steel Tubing
FS-11-25 *
FS-11-50 *
FS-11-125
FS-11-500
FS-11-1000
FS-16-150
1" FlashShield™ Corrugated Stainless Steel Tubing
150 Ft/Coil
50 Ft/Box
75 Ft/Coil
300 Ft/Coil
500 Ft/Coil
1-1/4" FlashShield™ Corrugated Stainless Steel Tubing
FS-20-50
FS-20-75
FS-20-300
FS-24-150
FS-24-50
FS-24-75
250 Ft/Coil
25 Ft/Coil
50 Ft/Box
125 Ft/Coil
500 Ft/Coil
1000 Ft/Coil
FS-16-50*
FS-16-75
FS-16-300
FS-16-500
FS-20-150
Pkg. Qty.
250 Ft/Coil
150 Ft/Coil
50 Ft/Coil
75 Ft/Coil
300 Ft/Coil
1-1/2" FlashShield™ Corrugated Stainless Steel Tubing
FS-32-150
2" FlashShield™ Corrugated Stainless Steel Tubing
FS-32-50
FS-32-75
*Packaged in box. Please contact Gastite Customer Service for custom lengths.
150 Ft/Coil
50 Ft/Coil
75 Ft/Coil
150 Ft/Coil
50 Ft/Coil
75 Ft/Coil
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. This 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
9
SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017
2.2.2
FITTINGS
Part No.
XR2FTG-6-24
XR3FTG-8-24
XR3FTG-11-24
XR3FTG-16-12
XR3FTG-20-6
XR3FTG-24-4
XR3FTG-32-4
Straight Fitting
XR2/XR3 SERIES STRAIGHT FITTING
(ADAPTER/NUT/BUSHING)
Description
3/8" Straight Fitting – 1/2" NPT
1/2" Straight Fitting – 1/2" NPT
3/4" Straight Fitting – 3/4" NPT
1" Straight Fitting – 1" NPT
1-1/4" Straight Fitting – 1-1/4" NPT
1-1/2" Straight Fitting – 1-1/2" NPT
2" Straight Fitting – 2" NPT
XR3 SERIES STRAIGHT FEMALE FITTING
Part No.
XR3FTGFM-8-24
XR3FTGFM-11-8-24
XR3FTGFM-11-24
Straight Female
Fitting
Pkg. Qty.
24/Box
24/Box
24/Box
12/Box
6/Box
4/Box
4/Box
(ADAPTER/NUT/BUSHING)
Description
1/2" Straight Fitting – 1/2" Female NPT
3/4" Straight Fitting – 1/2" Female NPT
3/4" Straight Fitting – 3/4" Female NPT
XR3 SERIES REDUCING FITTING
(ADAPTER/NUT/BUSHING)
Part No.
XR3REDFTG-11-8-24
XR3REDFTG-16-12-12
Description
3/4" Straight Reducing Fitting – 1/2" NPT
1" Straight Reducing Fitting – 3/4" NPT
Part No.
XR3T-8-12
XR3T-11-12
XR3T-16-6
XR3T-11-8-8-6
XR3T-11-11-8-6
XR3T-16-11-8-6
XR3T-16-11-11-6
XR3T-16-16-8-6
XR3T-16-16-11-6
Description
1/2" Run x 1/2" Run x 1/2" Tee – Tee Fitting
3/4" Run x 3/4" Run x 3/4" Tee – Tee Fitting
1" Run x 1" Run x 1" Tee – Tee Fitting
3/4" Run x 1/2" Run x 1/2" Tee – Tee Fitting
3/4" Run x 3/4" Run x 1/2" Tee – Tee Fitting
1" Run x 3/4" Run x 1/2" Tee – Tee Fitting
1" Run x 3/4" Run x 3/4" Tee – Tee Fitting
1" Run x 1" Run x 1/2" Tee – Tee Fitting
1" Run x 1" Run x 3/4" Tee – Tee Fitting
Reducing Fitting
Pkg. Qty.
24/Box
24/Box
24/Box
Pkg. Qty.
24/Box
12/Box
XR3 SERIES TEE FITTING
Tee
Run
Run
Tee Fitting
Pkg. Qty.
12/Box
12/Box
6/Box
6/Box
6/Box
6/Box
6/Box
6/Box
6/Box
XR2/XR3 SERIES COUPLING FITTINGS
Coupling
Part No.
Description
XR2CPL-6-12
3/8" Coupling
XR3CPL-8-12
1/2" Coupling
XR3CPL-11-12
3/4" Coupling
XR3CPL-16-6
1" Coupling
XR3CPL-20-6
1-1/4" Coupling
XR3CPL-24-4
1-1/2" Coupling
XR3CPL-32-4
2" Coupling
Note: Fitting Components available. Please contact Customer Service for pricing.
Pkg. Qty.
12/Box
12/Box
12/Box
6/Box
6/Box
4/Box
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.
FEATURES AND BENEFITS
•
•
•
•
•
10
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
2.2.2
FITTINGS
XR2/XR3 SERIES TERMINATION FITTING
Termination Fitting
With Square Flange
Part No.
XR2TRM-6-12
XR3TRM-8-12
XR3TRM-11-12
XR3TRM-16-6
XR3TRM-20-6
XR3TRM-24-4
XR3TRM-32-4
XR2TRM-6-12CB
XR3TRM-8-CB-12
XR3TRM-11-CB-12
XR3TRM-16-CB-6
XR3TRM-20-CB-6
XR3TRM-24-CB-4
(FLANGE/ADAPTER/NUT/BUSHING)
Description
3/8" Term. Fitting-Square Flange – 1/2" NPT
1/2" Term. Fitting-Square Flange – 1/2" NPT
3/4" Term. Fitting-Square Flange – 3/4" NPT
1" Term. Fitting-Square Flange – 1" NPT
1-1/4" Term. Fitting-Square Flange – 1-1/4" NPT
1-1/2" Term. Fitting-Square Flange – 1-1/2" NPT
2" Term. Fitting-Square Flange - 2" NPT
3/8" Term. Fitting-Cast Bronze Flange – 1/2" NPT
1/2" Term. Fitting-Cast Bronze Flange – 1/2" NPT
3/4" Term. Fitting-Cast Bronze Flange – 3/4" NPT
1" Term. Fitting-Cast Bronze Flange – 1" NPT
1-1/4" Term. Fitting-Cast Bronze Flange – 1-1/4" NPT
1-1/2" Term. Fitting-Cast Bronze Flange – 1-1/2" NPT
XR2/XR3 SERIES TERMINATION FITTING WITH NO FLANGE
Termination Fitting
No Flange
Part No.
XR2TRM-6-NF-12
XR3TRM-8-NF-12
XR3TRM-11-NF-12
XR3TRM-16-NF-6
XR3TRM-20-NF-6
XR3TRM-24-NF-4
XR3TRM-32-NF-4
Description
3/8" Term. Fitting – 1/2" NPT with no Flange
1/2" Term. Fitting – 1/2" NPT with no Flange
3/4" Term. Fitting – 3/4" NPT with no Flange
1" Term. Fitting – 1" NPT with no Flange
1-1/4" Term. Fitting – 1-1/4" NPT with no Flange
1-1/2" Term. Fitting – 1-1/2" NPT with no Flange
2" Term. Fitting – 2" NPT with no Flange
XR3 SERIES TERMINATION BRACKET FITTING
Term Bracket Fitting
Part No.
XR3TRMBKT-8-12
XR3TRMBKT-11-12
XR3TRMBKT-16-6
XR3TRMBKT-20-6
XR3TRMBKT-24-4
XR3TRMBKT-32-4
Pkg. Qty.
12/Box
12/Box
12/Box
6/Box
6/Box
4/Box
4/Box
12/Box
12/Box
12/Box
6/Box
6/Box
4/Box
(ADAPTER/NUT/BUSHING)
Pkg. Qty.
12/Box
12/Box
12/Box
6/Box
6/Box
4/Box
4/Box
(BRACKET/ADAPTER/NUT/BUSHING)
Description
1/2" Term. Bracket Fitting – 1/2" NPT
3/4" Term. Bracket Fitting – 3/4" NPT
1" Term. Bracket Fitting – 1" NPT
1-1/4" Term Bracket Fitting – 1-1/4" NPT
1-1/2" Term. Bracket Fitting – 1-1/2" NPT
2" Term. Bracket Fitting – 2" NPT
Pkg. Qty.
12/Box
12/Box
6/Box
6/Box
4/Box
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
11
SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017
2.2.3
MANIFOLDS
MULTI-PORT MANIFOLDS
Cast Manifolds
Part No.
3-PORTMAN
3-PORTMAN-1
4-PORTMAN-10
5-PORTMAN
5-PORTMAN-1
5-PORTMAN-2
5-PORTMAN-3
4-PORTMAN-2
4-PORTMAN-3
111596-08
Description
Cast 3 port – 3/4"F x 3 @ 1/2"F x 1/2"F
Cast 3 port – 1/2" x 3 @ 1/2"F x 1/2"F
Cast 4 port – 3/4"F x 4 @ 1/2"F x 1/2"F
Cast 5 port – 3/4"F x 1 @ 3/4"F x 4 @ 1/2"F x 1/2"F
Cast 5 port – 1"F x 1 @ 3/4"F x 4 @ 1/2"F x 3/4"F
Cast 5 port – 1-1/4"F x 5 @ 3/4"F x 1"F
Cast 5 port – 1-1/4"F x 5 @ 1/2"F x 1"F
Cast 4 port – 1-1/2"F x 4 @ 3/4"F x 1-1/2"F
Cast 4 port – 2"F x 4 @ 1"F x 1-1/2"F
Coated Steel 4 Port – 3/4"F x 4 @ 1/2"F x 3/4"M
Pkg. Qty.
1 Ea.
1 Ea.
10/Box
1 Ea.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
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
XR3-Appliance Stub-Outs
Straight Stub-Outs
Optional Brackets
Angle Stub-Out
Deck Stub-Out
Part No.
XR3-APSTUB-8-10
XR3-L-APSTUB-8-10
XR3-APSTUB-11-10
XR3-L-APSTUB-11-10
XR3-APSTUB-11-11-10
XR3-L-APSTB-11-11-10
Description
1/2"M x 1/2"M x 1-1/2" Stub length with 1/2" female fitting
1/2"M x 1/2"M x 2-1/4" Stub length with 1/2" female fitting
1/2"M x 1/2"M x 1-1/2" Stub length with 3/4" female fitting
1/2"M x 1/2"M x 2-1/4" Stub length with 3/4" female fitting
3/4"M x 3/4"M x 1-1/2" Stub length with 3/4" female fitting
3/4"M x 3/4"M x 2-1/4" Stub length with 3/4" female fitting
1/2X6STUB-10
1/2X12STUB-10
3/4X6STUB-10
3/4X12STUB-10
1X6STUB-10
1X12STUB-10
1-1/4X6STUB-10
1-1/4X12STUB-10
1-1/2X6STUB-10
1-1/2X12STUB-10
2X6STUB-10
2X12STUB-10
ANGLE-STUB-01-10
STUB-BRACE
DBLSTUB-1-10
DECKSTUB-1/2x3-10
1/2"M x 6"L Straight Stub
1/2"M x 12"L Straight Stub
3/4"M x 6"L Straight Stub
3/4"M x 12"L Straight Stub
1"M x 6"L Straight Stub
1"M x 12"L Straight Stub
1-1/4"M x 6"L Straight Stub
1-1/4"M x 12"L Straight Stub
1-1/2"M x 6"L Straight Stub
1-1/2"M x 12"L Straight Stub
2"M x 6"L Straight Stub
2"M x 12"L Straight Stub
1/2"M x 4-1/2"L x 72.5° Angle Stub
Stub Bracket (optional) – Fits All
3/4" Inlet x 1/2" & 3/4" Outlet
1/2" x 3" Bracket Stub-Out
APPLICATION
Pkg. Qty.
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
10/Box
1 Ea.
10/Box
10/Box
• 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
Double Stub-Out
• 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.
12
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
2.2.5
MOUNTING HARDWARE
Termination Bracket
Manifold Bracket
MOUNTING HARDWARE
Part No.
LBRACE-1-20
MBRACE-1-10
MBRACE-3-10
GLC1
Description
Term. Fitting Mounting Kit – Fits 3/8" - 1" CSST
Manifold Mounting Kit – See below for mounting options
Manifold Mounting Kit – See below for mounting options
Gas Load Center Kit – 14-1/2" x 24" x 3-1/2"
MSTRAPS-6-250
MSTRAPS-8-250
MSTRAPS-11-150
MSTRAPS-16-100
MSTRAPS-20-50
MSTRAPS-24-50
MSTRAPS-32-25
Metal Tubing Strap – Fits 3/8" CSST
Metal Tubing Strap – Fits 1/2" CSST
Metal Tubing Strap – Fits 3/4" CSST
Metal Tubing Strap – Fits 1" CSST
Metal Tubing Strap – Fits 1-1/4" CSST
Metal Tubing Strap – Fits 1-1/2" CSST
Metal Tubing Strap – Fits 2" CSST
XR3OUTLETBOX-8
XR3OUTLETBOX-11
XR3OUTLETBOX-FR8
XR3OUTLETBOX-FR11
Recessed gas outlet box kit with 1/2" XR3 Fitting
Recessed gas outlet box kit with 3/4" XR3 Fitting
Firestop gas outlet box kit with 1/2" XR3 Fitting
Firestop gas outlet box kit with 3/4" XR3 Fitting
Pkg. Qty.
20/Box
10/Box
10/Box
1 Ea.
250/Box
250/Box
150/Box
100/Box
50/Box
50/Box
25/Box
1 Kit
1 Kit
1 Kit
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
Gas Load Center
• 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.
XR3-Outlet Box
2.2.6
PIPE SUPPORT SYSTEM
RB0
Part No.
RB0-10-4
RB1-10-5
RB1-29-5
RB2-10-12
PIPE SUPPORT SYSTEM
Description
Rubber Support Block (10"L x 4"H)
Rubber Support Block w/ 7/8" Galv Steel Channel (10"L x 5"H)
Rubber Support Block w/ 7/8" Galv Steel Channel (29"L x 5"H)
Rubber Support Block w/Adj height 7/8" Galv Steel Channel (10"L x 5"–12"H)
Pkg. Qty.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
APPLICATION
• Effectively anchors and supports lightweight Gastite CSST, as well as other fuel gas piping materials to any roofing
membrane.
RB1
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.
RB2
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
2.2.7
STRIKE PROTECTION
Part No.
TFM204-100
TFM201-50
TFM203-50
TFM205-25
TFM210-10
TFM211-25
TFM212-25
SIL-TAPE
SIL-TAPE-B
Striker Plates
Steel Conduit Coil &
Cut Length
PROTECTION DEVICES – STRIKER PLATES & SILICONE TAPE
Description
Quarter Striker Plate – 3" x 2"
Half Striker Plate – 3" x 7"
Three-Quarter Striker Plate – 3" x 8"
Full Striker Plate – 3" x 12"
6" x 17" Striker Plate
Full (Drop-In) Striker Plate – 1/2" & 3/4" CSST
Full (Drop-In) Striker Plate – 1" & 1 1/4" CSST
Self Bonding Yellow Silicone Tape – 1" x .015" x 12 yd / roll
Self Bonding Black Silicone Tape – 1" x .015" x 12 yd / roll
Pkg. Qty.
100/Box
50/Box
50/Box
25/Box
10/Box
25/Box
25/Box
1 Ea.
1 Ea.
Part No.
FLOPPY12
FLOPPY16
FLOPPY20
FLOPPY24
FLOPPY28
FLOPPY36
FLOPPY48
Description
3/4" Coil steel conduit – Fits 3/8" CSST
1" Coil steel conduit – Fits 1/2" CSST
1-1/4" Coil steel conduit – Fits 3/4" CSST
1-1/2" Coil steel conduit – Fits 1" CSST
1-3/4" Coil steel conduit – Fits 1-1/4" CSST
2-1/4" Coil steel conduit – Fits 1-1/2" CSST
3" Coil steel conduit – Fits 2" CSST
Pkg. Qty.
50 Ft/Coil
50 Ft/Coil
25 Ft/Coil
25 Ft/Coil
25 Ft/Coil
25 Ft/Coil
25 Ft/Coil
Part No.
LFLOPPY-12-50
LFLOPPY-16-50
LFLOPPY-20-25
LFLOPPY-24-25
LFLOPPY-28-25
LFLOPPY 36-25
LFLOPPY-48-25
Description
3/4" – Cut to 1 foot length – Fits 3/8" CSST
1" – Cut to 1 foot length – Fits 1/2" CSST
1-1/4" – Cut to 1 foot length – Fits 3/4" CSST
1-1/2" – Cut to 1 foot length – Fits 1" CSST
1-3/4" – Cut to 1 foot length – Fits 1-1/4" CSST
2-1/4" – Cut to 1 foot length – Fits 1-1/2" CSST
3" – Cut to 1 foot length – Fits 2" CSST
Pkg. Qty.
50/Box
50/Box
25/Box
25/Box
25/Box
25/Box
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
Ball Valve
90˚ Ball Valve
SHUT-OFF VALVES
Part No.
T100-1/2-20
T100-3/4-10
T100-1-1/4-5
T90-1/2-10
T90-3/4-10
Description
1/2" Ball Valve rated to 125 PSI
3/4" Ball Valve rated to 125 PSI
1-1/4" Ball Valve rated to 125 PSI
1/2" 90 Degree Shut-Off Valve
3/4" 90 Degree Shut-Off Valve
Part No.
T103029
OUTFLEX-3/8
QCBOXPW
QCBOXPG
QCBOXSS
Description
1/2" Quick Connect Valve
Outdoor Flex Connector—3/8" NPT x 12'
1/2" Quick Connect Box White PVC—Surface Mounted
1/2" Quick Connect Box Gray PVC—Surface Mounted
1/2" Quick Connect PVC Box, Stainless Steel—Recess Mounted
QUICK CONNECT & ACCESSORIES
Pkg. Qty.
20/Box
10/Box
5/Box
10/Box
10/Box
Pkg. Qty.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
APPLICATION
Stainless Steel & PVC
Quick Connect Boxes
• 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.
14
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
2.2.9
GASTITE ACCESSORIES
TUBING CUTTERS AND ACCESSORIES
Tubing Cutters
Part No.
GTCUTTER-SM
GTCUTTER-SM2
GTCUTTER-LG
GTCUTTER-LG2
GTBLADE-SM-5
GTBLADE-LG2-5
Description
Yellow cutter with flat rollers – 3/8"–1" Gastite® and FlashShield™
Black cutter with flat rollers – 3/8"–1" FlashShield™
Yellow cutter with flat rollers – Up to 2" Gastite® and 1-1/2" FlashShield™
Black cutter with flat rollers – Up to 2" FlashShield™
Replacement blade for GTCUTTER-SM and GTCUTTER-SM2 (19mm)
Replacement blade for GTCUTTER-LG2 and GTCUTTER-LG (30mm)
Pkg. Qty.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
5 Ea.
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.
STRP3-8-24
STRP3-11-24
STRP3-16-24
STRP3-20-24
STRP3-24-12
STRP3-32-12
Description
1/2" Jacket Stripper
3/4" Jacket Stripper
1" Jacket Stripper
1-1/4" Jacket Stripper
1-1/2" Jacket Stripper
2" Jacket Stripper
Pkg. Qty.
24/Pkg.
24/Pkg.
24/Pkg.
24/Pkg.
12/Pkg.
12/Pkg.
2.2.10 BONDING CLAMPS
BONDING CLAMPS
Part No.
CWP1JSH
CWP2JSH
CWP3JSH
Description
Bonding Clamp for 3/8" and 1/2" Fittings
Bonding Clamp for 3/4", 1" and 1-1/4" Fittings
Bonding Clamp for 1-1/2" and 2" Fittings
Pkg. Qty.
1 Ea.
1 Ea.
1 Ea.
Bonding Clamps
2.2.11 SYSTEM IDENTIFICATION
Part No.
EPAL-1-100
EPMT-1-100
SYSTEM IDENTIFICATION
Description
Adhesive Labels for elevated pressure identification
Metal Tags for Uniform Plumbing Code compliance
Pkg. Qty.
100/Roll
100/Pkg.
Adhesive Label
Metal Tag
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
15
SECTION 2: SYSTEM DESCRIPTIONS & COMPONENTS / SEPTEMBER 2017
2.2.12 REGULATORS
MAXITROL REGULATORS
Maxitrol Regulators
Maxitrol Regulators
with OPD
OARA Regulators
Part No.
Description
T325-3-44
250 MBTU of NG @ 8"WC with 1/2" NPT inlet/outlet
T325-3-44P
355 MBTU of LP @ 11"WC with 1/2" NPT inlet/outlet
T325-5-2
425 MBTU of NG @ 8"WC with 1/2" NPT inlet/outlet
T325-5-44
600 MBTU of NG @ 8"WC with 3/4" NPT inlet/outlet
T325-5-44P
918 MBTU of LP @ 11"WC with 3/4" NPT inlet/outlet
T325-5-3
600 MBTU of NG @ 8"WC with 1" NPT inlet/outlet
T325-5-3P
550 MBTU of LP @ 11"WC with 1" NPT inlet/outlet
T325-7AL-NG01 1,250 MBTU of NG @ 8"WC with 1-1/4" NPT inlet/outlet
T325-3L48
200 MBTU of NG @ 8"WC with 1/2" NPT inlet/outlet & OPD
T325-5AL600
425 MBTU of NG @ 8"WC with 3/4" NPT inlet/outlet & OPD
T325-7L-210D*
1,250 MBTU of NG @ 8"WC with 1-1/4" NPT inlet/outlet & OPD
*Vent limiters not available for - 7 regulator.
OARA REGULATORS
Part No.
Description
REG8-300
250 MBTU of NG @ 8"WC with 1/2" NPT inlet/outlet
REG11-300
355 MBTU of LP @ 11"WC with 1/2" NPT inlet/outlet
REG8-600
550 MBTU of NG @ 8"WC with 3/4" NPT inlet/outlet
REG11-600
810 MBTU of LP @ 11"WC with 3/4" NPT inlet/outlet
Part No.
30051-NG
30052-NG
30053-NG
30153-NG
30052-LP
Pietro Fiorentini
Regulators
PIETRO FIORENTINI REGULATORS
Description
635 MBTU of NG @ 8"WC with 1/2" NPT inlet/outlet
848 MBTU of NG @ 8"WC with 3/4" NPT inlet/outlet
1,059 MBTU of NG @ 8"WC with 1" NPT inlet/outlet
5,297 MBTU of NG @ 8"WC with 1-1/4" NPT inlet/outlet
1,285 MBTU of LP @ 11"WC with 3/4" NPT inlet/outlet
Pkg. Qty.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
Pkg. Qty.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
Pkg. Qty.
1 Ea.
1 Ea.
1 Ea.
1 Ea.
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.
16
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
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
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
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
800.662.0208 / www.gastite.com / gastite@gastite.com
17
SECTION 3: SYSTEM CONFIGURATION / SEPTEMBER 2017
SECTION 3.0
3.1
CONFIGURATION
3.1.1
INTRODUCTION
SYSTEM CONFIGURATION
This section is intended to help in the design and sizing of both Gastite® and FlashShield™ CSST fuel gas piping systems.
The 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.
The 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. This 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. The 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)
5 PSI =
138.42"WC =
(approx. 140"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.
Refer to Section 7.0 for gases with a specific gravity other than 0.60.
18
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
3.1.4
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. These 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. The appliances are
serviced by individual runs from the manifold. The manifold
station is best located close to the greatest load, typically the
boiler or furnace.
Fig. 3-1
C) DUAL PRESSURE SYSTEM
A dual pressure system (Fig. 3-3, 3-4) incorporates two
operating pressures downstream from the meter. The 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. This 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.
Fig. 3-2
The 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. 3-3
Fig. 3-4
Multi-Unit Apartment Building
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
19
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.
Fig. 3-5
Fig. 3-6
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. This 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. 3-7
Fig. 3-8
20
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
3.1.5
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: The 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.”
The 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. The 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.
The Summation Method of pipe sizing calculates the actual pressure loss through each section of pipe. The sum of all the
losses is subtracted from the starting supply pressure to determine the inlet pressure to each appliance. The 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. The 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. These fluid equations come from data
produced by a third party laboratory. The 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. This 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. The 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.
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
21
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. This 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. This 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. This procedure is utilized for the designer whose requirements are not satisfied by the previously
described methods. The summation method can be used for system pressures and pressure drops other than indicated in
the sizing tables for longest run. This 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.
The 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. The 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). The 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.).
The 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.
22
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
3.2.2
EXAMPLE 1: SERIES SYSTEM – 6"WC
Figure 3-9 below shows a typical single-family house installation with five (5) appliances. The piping is arranged in series
with a main run branching at the appliances. The utility company’s supply pressure (downstream of the meter) is 6"WC.
The utility company advises that the specific gravity of the gas delivered will be 0.60 and the energy content is 1 CFH =
1000 BTUH. The 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
The total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH
The 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
The total load of the supplied appliances is 36 + 52 + 28 + 25 = 141CFH
The 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
23
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
The total load of all appliances is 52 + 28 + 25 = 105CFH
The 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
The total load of the BBQ and the dryer is 25 + 28 = 53CFH
The 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
The load of the BBQ is 25CFH
The 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
The load of the furnace is 80CFH
The 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
The load of the water heater is 36CFH
The 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
The load of the range is 52CFH
The 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”
•
•
•
•
24
Run “J” is sized by the load of the supplied appliance and the run length to the supplied appliance
The load of the dryer is 28CFH
The 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
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. The piping is arranged in parallel fashion, with individual CSST
appliance runs supplied by a main distribution manifold. The utility company’s supply pressure (downstream of the meter)
is 6"WC. The utility company advises that the specific gravity of the gas delivered will be 0.60 and the energy content is 1
CFH = 1000 BTUH. The 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
The total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH
The 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
The load of the furnace is 80CFH
The 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
25
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
The load of the water heater is 36CFH
The 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
The load of the range is 52CFH
The 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
The total load of the BBQ and the dryer is 25 + 28 = 53CFH
The 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
The load of the dryer is 28CFH
The 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”
•
•
•
•
26
Run “G” is sized by the total load of the supplied appliance and the run length from the meter to the furthest appliance
The load of the BBQ is 25CFH
The 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
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. The piping is arranged in parallel fashion,
with individual CSST appliance runs supplied by a main distribution manifold. The utility company’s supply pressure
(downstream of the meter) is 12-14"WC. The utility company advises that the specific gravity of the gas delivered will be
0.60 and the energy content is 1 CFH = 1000 BTUH. The 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
The total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH
The 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
The load of the furnace is 80CFH
The 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
27
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
The load of the water heater is 36CFH
The 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
The load of the range is 52CFH
The 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
The total load of the BBQ and the dryer is 25 + 28 = 53CFH
The 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
The load of the dryer is 28CFH
The 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”
•
•
•
•
28
Run “G” is sized by the total load of the supplied appliance and the run length from the meter to the furthest appliance
The load of the BBQ is 25CFH
The 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
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. The piping is arranged in parallel fashion,
with individual CSST appliance runs supplied by a main distribution manifold. A regulator is mounted at the manifold. The
utility company’s supply pressure (downstream of the meter) is 2 PSI. The utility company advises that the specific gravity
of the gas delivered will be 0.60 and the energy content is 1 CFH = 1000 BTUH. The 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. This 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
The total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH
The 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
The load of the furnace is 80CFH
The 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
29
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
The load of the water heater is 36CFH
The 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
The load of the range is 52CFH
The 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
The total load of the BBQ and the dryer is 25 + 28 = 53CFH
The 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
The load of the dryer is 28CFH
The 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”
•
•
•
•
30
Run “G” is sized by the total load of the supplied appliance and the run length from the regulator to the furthest appliance
The load of the BBQ is 25CFH
The 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
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. The piping is arranged in parallel fashion,
with individual CSST appliance runs supplied by two distribution manifolds. Regulators are mounted at each manifold. The
utility company’s supply pressure (downstream of the meter) is 2 PSI. The utility company advises that the specific gravity of
the gas delivered will be 0.60 and the energy content is 1 CFH = 1000 BTUH. The 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. This 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”). This 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
The total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH
The 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
• The total load of all appliances is 28 + 25 = 53CFH
• The 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. Therefore, 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
31
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. The piping is arranged in series with a main run branching at the appliances. The utility
company’s supply pressure (downstream of the meter) is 7"WC. The utility company advises that the specific gravity of the
gas delivered will be 0.60 and the energy content is 1 CFH = 1000 BTUH. The allowable pressure drop across the system
has been determined to be 2.0"WC (supply pressure 7"WC - appliance requirement 5"WC).
Fig. 3-14
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
The total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH
The 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”
•
•
•
•
32
Run “B” is sized by the total load of all supplied appliances and the run length from the meter to the furthest appliance
The total load of the supplied appliances is 36 + 52 + 28 + 25 = 141CFH
The 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)
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
The total load of all appliances is 52 + 28 + 25 = 105CFH
The 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
The total load of the BBQ and the dryer is 25 + 28 = 53CFH
The 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
The load of the BBQ is 25CFH
The 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
The load of the furnace is 80CFH
The 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
The load of the water heater is 36CFH
The 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
The load of the range is 52CFH
The 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
The load of the dryer is 28CFH
The 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
33
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. The piping is arranged in parallel
fashion, with individual CSST appliance runs supplied by a main distribution manifold. The main trunk line (“A”) from
the meter to the distribution manifold is rigid pipe rather than CSST. The utility company’s supply pressure (downstream
of the meter) is 7"WC. The utility company advises that the specific gravity of the gas delivered will be 0.60 and the energy
content is 1 CFH = 1000 BTUH.
The 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
SECTION LENGTH
RUN LENGTH
TUBE SIZE
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
“A” – Rigid Trunk
LOAD DELIVERED BY SECTION
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
The total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH
The 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”
•
•
•
•
34
Run “B” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance
The load of the furnace is 80CFH
The 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
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
The load of the water heater is 36CFH
The 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
The load of the range is 52CFH
The 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
The total load of the BBQ and the dryer is 25 + 28 = 53CFH
The 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
The load of the dryer is 28CFH
The 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
The load of the BBQ is 25CFH
The 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
35
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. The piping is arranged in parallel fashion, with individual CSST
appliance runs supplied by a main distribution manifold. The main trunk line (“A”) from the meter to the distribution
manifold is rigid pipe rather than CSST. The utility company’s supply pressure (downstream of the meter) is 7"WC. The
utility company advises that the specific gravity of the gas delivered will be 0.60 and the energy content is 1 CFH = 1000
BTUH. The 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
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
“A” – Rigid Trunk
SIZING RUN “A”
•
•
•
•
•
•
Run “A” is sized by the total load of all appliances and the section length
The total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH
The 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
The pressure drop over Run “A” is: 0.021" x 45ft = 0.945"WC
The available pressure at the end of run “A” is 7"WC - 0.945"WC = 6.055"WC
36
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 load of the supplied appliance and the section length
The load of the furnace is 80CFH
The 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
The pressure drop over Run “B” is: 0.037" x 15ft = 0.555"WC
The 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
The load of the water heater is 36CFH
The 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
The pressure drop over Run “C” is: 0.075" x 10ft = 0.750"WC
The 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
The load of the range is 52CFH
The 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
The pressure drop over Run “D” is: 0.020" x 20ft = 0.400"WC
The 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
The total load of the BBQ and the dryer is 25 + 28 = 53CFH
The 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
The pressure drop over Run “E” is: 0.020" x 20ft = 0.400"WC
The 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
The load of the dryer is 28CFH
The 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
The pressure drop over Run “F” is: 0.044" x 5ft = 0.220"WC
The 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
The load of the BBQ is 25CFH
The 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
The pressure drop over Run “G” is: 0.044" x 5ft = 0.220"WC
The 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
37
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. The piping is arranged in series with a main run
branching at the appliances. The utility company’s supply pressure (downstream of the meter) is 6"WC. The utility company
advises that the specific gravity of the gas delivered will be 0.60 and the energy content is 1 CFH = 1000 BTUH. The
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
The total load of all appliances is 80 + 36 + 52 + 28 + 25 = 221CFH
The 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. The
pressure drop over Run “A” is: 0.014" x 40ft = 0.560"WC
• The available pressure at the end of run “A” is 6"WC - 0.560"WC = 5.440"WC
38
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 section length
The total load of the supplied appliances is 36 + 52 + 28 + 25 = 141CFH
The 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
The pressure drop over Run “B” is: 0.006" x 5ft = 0.030"WC
The 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
The total load of the supplied appliances is 52 + 28 + 25 = 105CFH
The 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
The pressure drop over Run “C” is: 0.003" x 10ft = 0.030"WC
The 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
The total load of the BBQ and the dryer is 25 + 28 = 53CFH
The 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
The pressure drop over Run “D” is: 0.004" x 10ft = 0.040"WC
The 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
The load of the BBQ is 25CFH
The 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
The pressure drop over Run “E” is: 0.005" x 5ft = 0.025"WC
The 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
The load of the furnace is 80CFH
The 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
The pressure drop over Run “F” is: 0.008" x 10ft = 0.080"WC
The 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
The load of the water heater is 36CFH
The 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
The pressure drop over Run “G” is: 0.009" x 10ft = 0.090"WC
The 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
39
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
The load of the range is 52CFH
The 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
The pressure drop over Run “H” is: 0.004" x 10ft = 0.040"WC
The available pressure at the end of run “H” is 5.380"WC - 0.040"WC = 5.340"WC
SIZING RUN “J”
•
•
•
•
•
•
40
Run “J” is sized by the load of the supplied appliance and the section length
The load of the dryer is 28CFH
The 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
The pressure drop over Run “J” is: 0.005" x 5ft = 0.025"WC
The 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
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. The piping is arranged in series
with a main run branching at the appliances. The utility company’s supply pressure (downstream of the meter) is 2 PSI.
The utility company advises that the specific gravity of the gas delivered will be 0.60 and the energy content is 1 CFH =
1000 BTUH. The 2 PSI line pressure chart with a pressure drop of 1 PSI can be used. This 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
The total load of all appliances is 250 + 250 + 250 + 500 = 1250CFH
The 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
41
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
The total load of the supplied appliances is 250 + 250 + 500 = 1000CFH
The 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
The total load of all appliances is 250 + 500 = 750CFH
The 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
The load of the Air Handler is 500CFH
The 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
The load of the Make-Up Air Unit is 250CFH
The 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
The load of the Make-Up Air Unit is 250CFH
The 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”
•
•
•
•
42
Run “G” is sized by the load of the supplied appliance and the run length from the meter to the supplied appliance
The load of the Make-Up Air Unit is 250CFH
The 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
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. The piping is arranged in
vertical parallel fashion, with individual CSST appliance runs supplied by distribution
manifolds. The main trunk line (“A”-“D”) from the meter to the distribution manifolds
is rigid pipe rather than CSST. The utility company’s supply pressure (downstream of
the meter) is 7"WC. The utility company advises that the specific gravity of the gas
delivered will be 0.60 and the energy content is 1 CFH = 1000 BTUH. The 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
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
SECTION DESCRIPTION
Fig. 3-19
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
The total load of all appliances is 4 x (50 + 25 + 28) = 412CFH
The 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
The total load of the supplied appliances is 3 x (50 + 25 + 28) = 309CFH
The 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)
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
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
The total load of the supplied appliances is 2 x (50 + 25 + 28) = 206CFH
The 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
The total load of the supplied appliances is 50 + 25 + 28 = 103CFH
The 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
The load of the dryer is 28CFH
The 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
The load of the fireplace is 25CFH
The 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
The load of the water heater is 50CFH
The 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”
•
•
•
•
44
Run “E4” is sized by the load of the supplied appliances and the run length from the meter to the supplied appliance
The load of the dryer is 28CFH
The 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
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
The load of the fireplace is 25CFH
The 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
The load of the water heater is 50CFH
The 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
45
SEPTEMBER 2017
NOTES
46
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
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) The 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"
Fig. 4-1
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. This can be achieved by
terminating with a rigidly mounted fitting or by terminating with a fitting threaded onto a rigid gas-piping component.
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
4.2
FIELD FITTING ASSEMBLY PROCEDURE
4.2.1 X
R3 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.
Fig. 4-2
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.
(This could affect seating).
Remove the short section of jacket which will expose one full corrugation-valley
of the tubing.
Fig. 4-3
STEP 3 INSTALL NUT AND BUSHINGS (FIG. 4-5)
Thread 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. 4-4
Fig. 4-5
48
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
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.
Fig. 4-6
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.
Fig. 4-7
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).
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
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 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 caution when handling.
Fig. 4-8
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.
Fig. 4-9
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,
200o 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.
Fig. 4-10
Fig. 4-11
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.
50
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
STEP 3 INSTALL NUT AND BUSHINGS (FIG. 4-12)
Thread 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.
Fig. 4-12
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.
Fig. 4-13
Note: Rotate the nut only during the tightening process. Do not rotate the fitting body.
Note: The 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
Fig. 4-14
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).
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
4.2.3 X
R3 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)
Fig. 4-15
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. (This 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)
The 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). The area between the two back bushing ridges indicates the
peak of the 4th corrugation.
Fig. 4-16
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. The final stripped configuration of the
FlashShield jacket layers looks as shown.
Fig. 4-17
Fig. 4-18
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. 4-19
52
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
STEP 5 INSTALL NUT AND BUSHINGS (FIG. 4-20)
Thread 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.
Fig. 4-20
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.
Fig. 4-21
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
Fig. 4-22
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).
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
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.
Step 1: Fig. 4-23
Step 2: Fig. 4-24
Step 3: Fig. 4-25
Step 4: Fig. 4-26
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.
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
Note: Strike Protection (Floppy) not shown for clarity.
54
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
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.
irect contact between Gastite yellow CSST and continuous metallic systems is prohibited. When installing
D
vertical runs, maintain as much isolation/separation as reasonably possible from other continuous metallic systems
in the building.
There 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.
irect contact between Gastite yellow CSST and continuous metallic systems is prohibited. When installing
D
horizontal runs, maintain as much isolation/separation as reasonably possible from other continuous metallic
systems in the building.
There 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
Fig. 4-32
Fig. 4-33
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)
TABLE 4-4
Fig. 4-35
Fig. 4-34
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.
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
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"
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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017
4.3.4
CONCEALED FITTINGS
The Gastite®/FlashShield™ Mechanical Fittings have been tested and listed per the requirements of ANSI LC1/CSA 6.26
for concealed use. The 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.
These 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.
Fig. 4-36
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.
Fig. 4-37
Fig. 4-38
Note: Strike Protection (Floppy) not shown for
clarity.
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.
56
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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
The Gastite®/FlashShield™ jacket is ASTM E84 and CAN/ULC-S102.2 25/50 compliant for the flame smoke spread and
density index. These values meet most typical requirements for building construction. Therefore, 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 “Through-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. The 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. The
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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57
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. The 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. The 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.
The 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).
NON-METALLIC
HOSE
PROTECTION
Note: Steel Stud
Construction –
Knock teeth off striker
plate for steel stud
construction.
Fig. 4-39
Fig. 4-41
58
Fig. 4-40
Fig. 4-42
Fig. 4-43
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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).
Fig. 4-44
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.
Fig. 4-46
Fig. 4-47
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
Fig. 4-48
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) The width of installed striker plates shall be at least 1.5 times the outside diameter of the Gastite®/FlashShield™ CSST.
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59
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
Fig. 4-49
The 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. This will allow for the addition of future gas
appliances and minimize the opportunity for whistling.
Fig. 4-50
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.
60
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.
This 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)
Fig. 4-54
Fig. 4-55
b) The 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. The 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) The Straight Stub provides a fixed point for the Gastite®/FlashShield™ mechanical fitting and a stable platform for service
meter connections. The 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). The optional bracket is designed to span typical stud
construction. The compact design of the straight stub allows for multiple stub-outs within the stud cavity.
The 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. 4-56
Fig. 4-57
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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
Fig. 4-60
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. The outdoor portion of the CSST run shall be supported against
the side of any of the inside deck joists.
NOTE: STRIKE PROTECTION
(FLOPPY) NOT SHOWN FOR CLARITY.
Fig. 4-61
62
Fig. 4-62
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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. This
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™. This can be accomplished through either the weight of the support or adhering the
support to the roof materials. The 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. The 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
Fig. 4-63
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. 4-64
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Fig. 4-65
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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017
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
64
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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
Fig. 4-71
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). The Fireplace Stubout (ANGLESTUB-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. The 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.
Angle Stub-Out Example
Non-Metallic Grommet
Wall Vented Example
Fig. 4-72
Fig. 4-73
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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017
The 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.
Proper Angle Stub
Installation
Angle Stub shall not be connected in such a way that
The
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)
Improper Angle Stub
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. The 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®/
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
FLASHSHIELD™ SIZE
Fig. 4-75
Fig. 4-76
Note: Strike Protection
(Floppy) not shown for clarity.
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 ).
Fig. 4-77
66
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4.7
MANIFOLD
Manifolds are installed where multiple runs are made from a common location in a parallel arrangement. The manifold
may be manufactured from a one-piece malleable iron or brass casting (Fig. 4-78), a welded fabrication of steel subcomponents or an assembly of approved, malleable iron tees and short nipples (Fig. 4-79). Manifolds must be rigidly
installed. This 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.
The 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. This method is applicable for
all manifolds whose ports are equal or greater in size than the pipe connected to the corresponding port.
The 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. The cabinet must be ventilated through the panel/door and not
into a wall space.
Fig. 4-79
Fig. 4-78
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. 4-80
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SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017
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. The 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. This 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.
This 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.
This 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).
68
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800.662.0208 / www.gastite.com / gastite@gastite.com
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
T325-3-44/Reg8-300
T325-5-44/Reg8-600
T325-7AL-NG01
T325-3L48 (OPD)
T325-5AL600 (OPD)
T325-7L-210D (OPD)
30051-NG (PF# 31051)
30052-NG (PF# 31052)
30053-NG (PF# 31053)
30153-NG (PF# 31153)
Outlet Pressure
Operating Inlet Pressure
1/2 PSI
3/4 PSI
1 PSI
1-1/2 PSI
2 PSI
8"WC
145
200
250
250
8"WC
335
475
550
550
8"WC
690
970
1,250
1,250
8"WC
160
200
200
200
8"WC
345
425
425
425
8"WC
650
900
1,250
1,250
8"WC
306
442
552
710
8"WC
369
552
665
888
8"WC
495
718
893
1,154
8"WC
2,071
2,344
3,735
4,087
Capacity value for most typical 2 PSI parallel systems when trunk run is sized to deliver 1 PSI to regulator inlet.
250
550
1,250
200
425
1,250
785
946
1,270
5,311
TABLE 4-8
REGULATOR CAPACITY FOR NATURAL GAS WITH AN 11"WC OUTLET PRESSURE (CAPACITIES – 0.64 SP GR GAS EXPRESSED IN CFH)
Operating Inlet Pressure
1/2 PSI
3/4 PSI
1 PSI
1-1/2 PSI
T325-3-44P/Reg11-300
11"WC
93
172
225
250
T325-5-44P/Reg11-600
11"WC
211
391
511
550
T325-7AL-NG01
11"WC
441
816
1,250
1,250
T325-3L48* (OPD)
11"WC
120
200
200
200
T325-5AL600* (OPD)
11"WC
260
425
425
425
T325-7L-210D* (OPD)
11"WC
490
821
1,250
1,250
30051-NG* (PF# 31051*)
11"WC
218
389
511
681
30052-LP (PF# 31052)
11"WC
263
487
616
852
30053-NG* (PF# 31053*)
11"WC
353
633
826
1,108
30153-NG* (PF# 31153*)
11"WC
1,476
2,241
3,457
3,920
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"
Model Number
Outlet Pressure
2 PSI
250
550
1,250
200
425
1,250
788
950
1,274
5,330
TABLE 4-9
REGULATOR CAPACITY FOR PROPANE WITH AN 11"WC OUTLET PRESSURE (CAPACITIES – 1.52 SP GR GAS EXPRESSED IN kBTUh)
Operating Inlet Pressure
1/2 PSI
3/4 PSI
1 PSI
1-1/2 PSI
11"WC
T325-3-44P/Reg11-300
147
270
355
395
11"WC
T325-5-44P/Reg11-600
335
620
810
870
11"WC
T325-7AL-NG01
700
1,290
1,811
1,811
11"WC
T325-3L48* (OPD)
190
315
315
315
11"WC
T325-5AL600* (OPD)
410
670
670
670
11"WC
T325-7L-210D* (OPD)
775
1,300
2,012
2,012
11"WC
30051-NG* (PF# 31051*)
344
615
807
1,076
11"WC
30052-LP (PF# 31052)
416
769
973
1,346
11"WC
30053-NG* (PF# 31053*)
558
1,000
1,305
1,751
11"WC
30153-NG* (PF# 31153*)
2,332
3,541
5,462
6,194
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"
Model Number
Outlet Pressure
2 PSI
395
870
1,811
315
670
2,012
1,245
1,501
2,013
8,421
TABLE 4-10
LARGEST SINGLE APPLIANCE SERVED BY REGULATOR
Regulator
T325-3-X/RegX-300
T325-5-XP/RegX-600
T325-7L-44
T325-3L48 (OPD)
T325-5AL600 (OPD)
T325-7L-210D (OPD)
Natural Gas (CFH)
0.64 SG gas
140
300
900
200
425
900
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
Propane (kBTUh)
1.52 SG gas
215
460
1,380
305
650
1,380
69
SECTION 4: INSTALLATION PRACTICES / SEPTEMBER 2017
4.8.3
INSTALLATION
a) The 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. The 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) The 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) The 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: The vent-limiting orifice does not allow gas to escape to
the environment during operation.
Fig. 4-82
e) Do not leak test the vent orifice with liquid leak test solution. This 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. The 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) The regulators supplied by Gastite Division have a temperature range limit of -40 to
240 degrees F. The 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 ventlimiting orifice must be removed for outdoor installations.
OUTDOOR MOUNTING OPTIONS: (FIGURES 4-83 THROUGH 4-85)
Fig. 4-83
The 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.
The regulator may be mounted horizontally, with
a vent tube installed in the venting port. The 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.
70
Fig. 4-84
Fig. 4-85
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
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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. This 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) The 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. This may result in
over-firing due to loss of pressure control, should there be a subsequent increase in inlet pressure.
c) The line regulators can be adjusted with an outlet pressure ranging between 7 and 11 inches water column. The 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. This regulator contains an integral
over-pressure protection device (OPD) (Fig. 4-86). This 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.
Fig. 4-86
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.
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71
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. Therefore, 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
72
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
4.10 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. This 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. The gas piping system shall be considered to be directbonded 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
- The shortest practical bond wire length will improve the effectiveness of the direct bond
• The bonding conductor is permanently and directly connected to the electrical service grounding electrode system of
the premises. This 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
• The bonding conductor shall be installed and protected in accordance with:
- National Electrical Code, NFPA 70, (NEC)
- Canadian Electrical Code, CSA-C22.1, (CEC)
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73
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
74
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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 approval 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. The 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) G
astite®/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) G
astite®/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) G
astite®/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) R
egulators are suitable for multi-poise mounting. When using a vent-limiting device however, the regulator must be
mounted in a horizontal upright position.
5) G
astite® 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) W
hen 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) F
or 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) I nstallation 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) G
as 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
800.662.0208 / www.gastite.com / gastite@gastite.com
75
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. The Gastite®/FlashShield™
mechanical joint fittings can be removed and easily re-attached. This 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).
Fig. 5-1
5.3.3
FLASHSHIELD™ JACKET REPAIR
Fig. 5-2
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).
76
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
SECTION 6: PRESSURE/LEAKAGE TESTING / SEPTEMBER 2017
SECTION 6.0 PRESSURE/LEAKAGE TESTING
6.1
GENERAL GUIDELINES FOR PRESSURE TESTING
a) The 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). This 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.
The 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).
Fig. 6-1
Fig. 6-2
Fig. 6-3
Or a two-part test may be performed as shown in Figure 6-3:
• The first test is performed on the elevated pressure section, between the meter connection and the pounds-to-inches line
regulator.
• The 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.
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
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77
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. This 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 solution must be labeled as non-corrosive.
b) Before placing the appliances in operation, the tubing system should be purged. This 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. This 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 (Section 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.
78
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
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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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
47
131
251
578
871
1834
3874
32
93
183
415
620
1304
2711
26
76
152
341
508
1068
2199
22
66
133
297
441
926
1896
20
59
120
267
396
830
1690
18
54
110
244
362
759
1539
15
47
97
213
314
658
1327
14
42
87
191
282
590
1183
13
38
80
175
258
539
1077
12
36
75
163
239
500
994
11
33
70
153
224
468
928
10
32
67
144
211
442
874
10
30
63
137
201
419
827
8
27
57
123
180
376
737
8
24
53
113
164
343
671
TUBING
TUBING LENGTH (FT)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
7
21
46
98
143
298
579
6
19
42
88
128
267
516
5
17
38
81
117
244
470
5
15
34
70
102
212
405
4
14
30
63
91
190
361
4
12
28
58
83
173
329
3
11
26
54
77
161
304
3
11
24
50
72
150
283
3
10
23
48
68
142
267
3
10
22
45
65
135
253
3
9
21
43
62
129
240
3
9
20
42
59
123
230
2
8
20
40
57
118
221
2
8
19
39
55
114
212
2
8
18
37
53
110
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
67
185
345
807
1224
2581
5538
47
131
251
578
871
1834
3874
38
107
209
476
714
1502
3144
32
93
183
415
620
1304
2711
29
83
165
372
556
1168
2416
26
76
152
341
508
1068
2199
22
66
133
297
441
926
1896
20
59
120
267
396
830
1690
18
54
110
244
362
759
1539
17
50
103
227
336
703
1421
15
47
97
213
314
658
1327
15
44
92
201
297
621
1249
14
42
87
191
282
590
1183
12
38
79
172
253
528
1054
11
34
72
157
231
483
960
TUBING
TUBING LENGTH (FT)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
-1/4"
1-1/2"
2"
10
30
63
137
201
419
827
8
27
57
123
180
376
737
8
24
53
113
164
343
671
7
21
46
98
143
298
579
6
19
42
88
128
267
516
5
17
38
81
117
244
470
5
16
36
75
109
226
434
5
15
34
70
102
212
405
4
14
32
67
96
200
381
4
14
30
63
91
190
361
4
13
29
60
87
181
344
4
12
28
58
83
173
329
4
12
27
56
80
167
315
3
11
26
54
77
161
304
3
11
25
52
75
155
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
79
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
83
226
416
981
1493
3152
6825
58
160
303
703
1063
2240
4775
47
131
251
578
871
1834
3874
40
114
220
504
757
1592
3340
36
102
199
452
678
1426
2978
32
93
183
415
620
1304
2711
28
81
160
361
539
1131
2337
25
72
145
324
483
1014
2083
22
66
133
297
441
926
1896
21
61
124
276
409
859
1752
19
57
116
259
383
804
1635
18
54
110
244
362
759
1539
17
51
105
232
344
720
1457
15
46
95
209
308
645
1299
14
42
87
191
282
590
1183
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
12
37
76
167
245
512
1020
11
33
69
150
219
459
909
10
30
63
137
201
419
827
8
26
56
119
174
364
713
7
23
50
107
156
326
636
7
21
46
98
143
298
579
6
20
43
91
132
276
535
6
18
40
86
124
259
499
5
17
38
81
117
244
470
5
17
37
77
111
232
445
5
16
35
73
106
221
424
5
15
34
70
102
212
405
4
15
32
68
98
204
389
4
14
31
65
94
196
374
4
14
30
63
91
190
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
97
260
475
1126
1719
3632
7915
67
185
345
807
1224
2581
5538
54
151
287
664
1003
2114
4493
47
131
251
578
871
1834
3874
41
118
227
520
781
1643
3453
38
107
209
476
714
1502
3144
32
93
183
415
620
1304
2711
29
83
165
372
556
1168
2416
26
76
152
341
508
1068
2199
24
71
141
317
471
989
2031
22
66
133
297
441
926
1896
21
62
126
281
417
874
1785
20
59
120
267
396
830
1690
18
53
108
240
355
744
1507
16
49
100
220
324
680
1372
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
14
42
87
191
282
590
1183
12
38
79
172
253
528
1054
11
34
72
157
231
483
960
10
30
63
137
201
419
827
8
27
57
123
180
376
737
8
24
53
113
164
343
671
7
23
49
105
152
318
620
7
21
46
98
143
298
579
6
20
44
93
135
281
545
6
19
42
88
128
267
516
6
18
40
84
122
255
491
5
17
38
81
117
244
470
5
17
37
78
113
235
451
5
16
36
75
109
226
434
5
16
35
73
105
219
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.
80
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 7-5
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
120
318
572
1368
2097
4435
9755
83
226
416
981
1493
3152
6825
67
185
345
807
1224
2581
5538
58
160
303
703
1063
2240
4775
51
144
273
631
953
2007
4256
47
131
251
578
871
1834
3874
40
114
220
504
757
1592
3340
36
102
199
452
678
1426
2978
32
93
183
415
620
1304
2711
30
86
170
385
575
1208
2504
28
81
160
361
539
1131
2337
26
76
152
341
508
1068
2199
25
72
145
324
483
1014
2083
22
65
130
291
433
908
1857
20
59
120
267
396
830
1690
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
17
51
105
232
344
720
1457
15
46
95
209
308
645
1299
14
42
87
191
282
590
1183
12
37
76
167
245
512
1020
11
33
69
150
219
459
909
10
30
63
137
201
419
827
9
28
59
127
186
389
764
8
26
56
119
174
364
713
8
24
53
113
164
343
671
7
23
50
107
156
326
636
7
22
48
102
149
311
605
7
21
46
98
143
298
579
6
20
44
95
137
286
555
6
20
43
91
132
276
535
6
19
42
88
128
267
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
140
366
653
1571
2415
5110
11314
97
260
475
1126
1719
3632
7915
78
213
394
927
1409
2974
6423
67
185
345
807
1224
2581
5538
60
165
312
725
1097
2312
4936
54
151
287
664
1003
2114
4493
47
131
251
578
871
1834
3874
41
118
227
520
781
1643
3453
38
107
209
476
714
1502
3144
35
100
194
442
662
1392
2904
32
93
183
415
620
1304
2711
30
88
173
392
585
1230
2551
29
83
165
372
556
1168
2416
25
75
149
334
498
1046
2154
23
68
137
306
456
956
1960
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
20
59
120
267
396
830
1690
18
53
108
240
355
744
1507
16
49
100
220
324
680
1372
14
42
87
191
282
590
1183
12
38
79
172
253
528
1054
11
34
72
157
231
483
960
10
32
67
146
214
448
886
10
30
63
137
201
419
827
9
28
60
130
189
396
779
8
27
57
123
180
376
737
8
26
55
118
172
358
702
8
24
53
113
164
343
671
7
24
51
109
158
330
644
7
23
49
105
152
318
620
7
22
48
101
147
308
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
81
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
157
409
723
1749
2694
5704
12692
109
290
526
1254
1918
4054
8880
88
238
437
1032
1572
3320
7205
76
206
383
898
1365
2881
6213
67
185
345
807
1224
2581
5538
61
169
318
739
1119
2359
5041
52
146
278
644
972
2048
4346
47
131
251
578
871
1834
3874
42
120
231
530
797
1677
3527
39
111
215
492
739
1554
3257
36
104
202
461
692
1455
3041
34
98
192
436
653
1373
2862
32
93
183
415
620
1304
2711
29
83
165
372
556
1168
2416
26
76
152
341
508
1068
2199
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
22
66
133
297
441
926
1896
20
59
120
267
396
830
1690
18
54
110
244
362
759
1539
15
47
97
213
314
658
1327
14
42
87
191
282
590
1183
13
38
80
175
258
539
1077
12
36
75
163
239
500
994
11
33
70
153
224
468
928
10
32
67
144
211
442
874
10
30
63
137
201
419
827
9
29
61
131
191
400
788
9
27
58
126
183
383
753
8
26
56
121
176
368
723
8
25
54
117
170
355
696
8
24
53
113
164
343
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
173
447
787
1909
2946
6240
13943
120
318
572
1368
2097
4435
9755
97
260
475
1126
1719
3632
7915
83
226
416
981
1493
3152
6825
74
202
376
881
1338
2824
6083
67
185
345
807
1224
2581
5538
58
160
303
703
1063
2240
4775
51
144
273
631
953
2007
4256
47
131
251
578
871
1834
3874
43
122
234
537
808
1700
3578
40
114
220
504
757
1592
3340
38
107
209
476
714
1502
3144
36
102
199
452
678
1426
2978
32
91
179
406
608
1278
2654
29
83
165
372
556
1168
2416
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
25
72
145
324
483
1014
2083
22
65
130
291
433
908
1857
20
59
120
267
396
830
1690
17
51
105
232
344
720
1457
15
46
95
209
308
645
1299
14
42
87
191
282
590
1183
13
39
81
178
261
547
1092
12
37
76
167
245
512
1020
11
34
72
157
231
483
960
11
33
69
150
219
459
909
10
31
66
143
209
438
865
10
30
63
137
201
419
827
9
29
61
132
193
403
794
9
28
59
127
186
389
764
8
27
57
123
180
376
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.
82
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
7.2
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
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
5
10
15
20
261
181
146
125
655
465
381
330
1122
816
677
594
2769 1984 1633 1422
4304 3064 2511 2181
9134 6491 5316 4613
20768 14530 11790 10165
25
30
40
50
60
70
80
90
100
125
150
111
296
536
1277
1955
4133
9061
101
271
493
1170
1788
3778
8249
87
235
432
1019
1553
3279
7112
77
210
390
916
1392
2937
6339
70
192
358
839
1273
2685
5771
65
178
334
779
1180
2489
5330
60
167
314
730
1105
2330
4976
57
157
297
690
1043
2199
4683
53
149
283
656
991
2087
4435
48
134
256
589
888
1870
3953
43
122
235
540
812
1709
3599
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
37
106
206
470
705
1484
3103
33
95
186
422
632
1329
2766
30
87
171
387
578
1215
2518
26
75
150
337
502
1054
2171
23
67
135
303
450
945
1935
21
62
124
277
412
863
1762
19
57
116
258
382
800
1627
18
54
109
241
357
749
1519
17
50
103
228
337
707
1429
16
48
98
217
320
671
1354
15
46
94
207
306
640
1289
14
44
91
199
293
614
1232
14
42
87
191
282
590
1183
13
41
84
185
272
569
1138
13
39
82
179
263
550
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
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
5
10
15
20
25
30
40
392
271
219
188
167
152
130
957
679
556
483
432
395
343
1596 1161
964
844
762
701
614
4004 2869 2361 2056 1847 1692 1474
6269 4463 3658 3177 2848 2604 2262
13331 9474 7758 6733 6032 5514 4785
30841 21577 17508 15096 13456 12249 10561
Tubing
50
60
70
80
90
100
125
150
116
307
554
1324
2027
4287
9414
105
281
510
1213
1854
3918
8570
97
260
475
1126
1719
3632
7915
90
243
447
1056
1610
3401
7389
85
230
423
998
1520
3209
6954
80
218
403
949
1443
3047
6586
71
195
364
852
1294
2729
5871
65
179
335
781
1183
2495
5344
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
56
155
293
680
1027
2165
4608
49
139
265
611
921
1940
4107
45
127
243
560
842
1773
3739
39
110
213
487
731
1539
3224
34
99
193
438
656
1379
2874
31
90
177
401
600
1260
2616
29
83
165
372
556
1168
2416
27
78
155
349
521
1094
2255
25
74
147
330
491
1032
2123
24
70
140
314
467
980
2010
23
67
134
300
445
935
1914
22
64
129
287
427
896
1830
21
62
124
277
410
861
1756
20
59
120
267
396
830
1690
19
57
116
258
383
802
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
83
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
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
760
527
425
365
324
295
253
225
204
188
175
165
156
138
126
1775 1261 1032
896
802
733
636
570
521
483
452
426
405
363
331
2838 2064 1713 1501 1355 1246 1092
986
906
844
794
752
717
647
595
7311 5239 4312 3755 3373 3090 2691 2417 2214 2056 1929 1822 1732 1556 1426
11587 8248 6761 5872 5263 4813 4180 3747 3426 3177 2976 2809 2667 2391 2186
24713 17563 14382 12482 11182 10221 8871 7947 7264 6733 6304 5949 5648 5060 4625
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
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
108
287
521
1242
1899
4014
8788
96
257
471
1115
1702
3596
7833
87
235
433
1022
1556
3287
7131
75
204
379
890
1352
2853
6148
66
183
342
799
1212
2556
5480
60
167
315
732
1108
2336
4989
56
155
293
680
1027
2165
4608
52
145
276
638
962
2027
4301
49
137
261
603
908
1913
4048
46
130
249
573
863
1816
3834
44
124
238
547
823
1733
3650
42
119
229
525
789
1660
3490
40
114
221
505
758
1596
3349
39
110
213
487
731
1539
3224
37
106
207
471
707
1487
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
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
5
10
15
20
25
30
50
60
70
80
90
100
125
150
1097
760
613
527
468
425
365
324
295
271
253
238
225
200
181
2499 1775 1453 1261 1129 1032
896
802
733
679
636
600
570
510
466
3902 2838 2356 2064 1863 1713 1501 1355 1246 1161 1092 1034
986
890
818
10201 7311 6016 5239 4707 4312 3755 3373 3090 2869 2691 2543 2417 2171 1989
16276 11587 9498 8248 7394 6761 5872 5263 4813 4463 4180 3945 3747 3359 3071
34773 24713 20237 17563 15734 14382 12482 11182 10221 9474 8871 8370 7947 7120 6508
84071 58818 47727 41150 36680 33391 28790 25662 23361 21577 20142 18956 17954 16003 14568
Tubing
EHD
40
Tubing Length (ft)
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
13
3/8"
156
138
126
108
96
87
80
75
70
66
63
60
58
56
19
1/2"
405
363
331
287
257
235
218
204
193
183
174
167
161
155
23
3/4"
717
647
595
521
471
433
403
379
359
342
328
315
303
293
31
1"
1732 1556 1426 1242 1115 1022
949
890
841
799
763
732
705
680
37
1-1/4" 2667 2391 2186 1899 1702 1556 1443 1352 1276 1212 1156 1108 1065 1027
48
1-1/2" 5648 5060 4625 4014 3596 3287 3047 2853 2692 2556 2438 2336 2246 2165
60
2"
12561 11196 10192 8788 7833 7131 6586 6148 5786 5480 5218 4989 4787 4608
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.
1500
54
150
284
658
993
2093
4447
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.
84
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
7.3
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
74
208
398
917
1381
2907
6141
51
148
290
657
983
2066
4296
41
121
240
541
806
1692
3486
35
105
211
471
700
1468
3006
31
94
190
423
627
1316
2679
29
86
175
387
574
1203
2439
25
75
153
337
498
1044
2103
22
67
138
303
446
935
1874
20
61
127
278
408
855
1706
18
57
118
258
379
792
1576
17
53
111
242
355
742
1471
16
50
106
229
335
700
1385
15
47
101
217
318
664
1311
13
42
91
195
285
595
1169
12
39
83
179
261
544
1064
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
10
34
73
156
226
472
917
9
30
66
140
203
423
818
8
28
61
128
185
387
744
7
24
53
112
161
336
642
6
21
48
100
144
301
572
6
20
44
92
132
275
521
5
18
41
85
122
255
481
5
17
39
80
115
239
449
5
16
37
76
108
225
423
4
15
35
72
103
214
400
4
15
33
69
98
204
381
4
14
32
66
94
195
364
4
13
31
63
90
188
350
4
13
30
61
87
181
337
4
12
29
59
84
175
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
106
293
548
1279
1940
4091
8777
74
208
398
917
1381
2907
6141
60
170
331
754
1132
2381
4983
51
148
290
657
983
2066
4296
45
132
261
590
881
1851
3829
41
121
240
541
806
1692
3486
35
105
211
471
700
1468
3006
31
94
190
423
627
1316
2679
29
86
175
387
574
1203
2439
26
80
163
360
532
1115
2253
25
75
153
337
498
1044
2103
23
70
145
319
470
985
1979
22
67
138
303
446
935
1874
19
60
125
272
400
838
1671
18
55
115
249
366
766
1521
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
15
47
101
217
318
664
1311
13
42
91
195
285
595
1169
12
39
83
179
261
544
1064
10
34
73
156
226
472
917
9
30
66
140
203
423
818
8
28
61
128
185
387
744
8
26
57
119
172
358
688
7
24
53
112
161
336
642
7
23
50
105
152
317
604
6
21
48
100
144
301
572
6
20
46
96
138
287
545
6
20
44
92
132
275
521
6
19
43
88
127
264
500
5
18
41
85
122
255
481
5
18
40
82
118
246
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
85
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
154
412
753
1785
2725
5756
12546
106
293
548
1279
1940
4091
8777
86
240
454
1053
1590
3350
7122
74
208
398
917
1381
2907
6141
66
186
359
824
1238
2605
5474
60
170
331
754
1132
2381
4983
51
148
290
657
983
2066
4296
45
132
261
590
881
1851
3829
41
121
240
541
806
1692
3486
38
112
224
502
747
1568
3220
35
105
211
471
700
1468
3006
33
99
200
445
660
1386
2829
31
94
190
423
627
1316
2679
28
84
172
380
562
1179
2388
25
77
158
348
514
1077
2174
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
22
67
138
303
446
935
1874
19
60
125
272
400
838
1671
18
55
115
249
366
766
1521
15
47
101
217
318
664
1311
13
42
91
195
285
595
1169
12
39
83
179
261
544
1064
11
36
78
166
242
504
983
10
34
73
156
226
472
917
10
32
69
147
214
446
863
9
30
66
140
203
423
818
9
29
63
134
194
404
779
8
28
61
128
185
387
744
8
27
59
123
178
372
714
8
26
57
119
172
358
688
8
25
55
115
166
346
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
173
460
834
1987
3040
6426
14075
120
327
607
1424
2164
4567
9847
97
268
504
1172
1774
3740
7990
83
232
441
1021
1540
3245
6889
74
208
398
917
1381
2907
6141
67
190
366
840
1263
2658
5590
58
165
321
731
1097
2306
4820
51
148
290
657
983
2066
4296
46
135
266
602
899
1889
3911
43
125
248
559
833
1751
3612
40
117
233
524
781
1639
3372
37
111
221
495
737
1547
3173
35
105
211
471
700
1468
3006
31
94
190
423
627
1316
2679
29
86
175
387
574
1203
2439
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
25
75
153
337
498
1044
2103
22
67
138
303
446
935
1874
20
61
127
278
408
855
1706
17
53
111
242
355
742
1471
15
47
101
217
318
664
1311
14
43
93
199
291
607
1194
13
40
86
185
270
563
1103
12
38
81
173
252
527
1029
11
35
77
164
238
497
969
10
34
73
156
226
472
917
10
32
70
149
216
451
873
10
31
67
143
207
432
835
9
30
65
137
199
415
801
9
29
63
132
192
400
771
8
28
61
128
185
387
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.
86
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 7-17
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
5
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
10
190
132
504
358
907
660
2169 1554
3324 2366
7029 4996
15461 10817
15
20
25
30
40
50
60
70
80
90
100
125
150
106
293
548
1279
1940
4091
8777
91
254
480
1114
1684
3550
7568
81
228
433
1001
1510
3181
6746
74
208
398
917
1381
2907
6141
63
180
349
798
1199
2523
5295
56
162
315
717
1075
2260
4719
51
148
290
657
983
2066
4296
47
137
270
610
911
1915
3968
44
128
254
572
854
1793
3704
41
121
240
541
806
1692
3486
39
115
229
514
765
1606
3302
35
103
207
462
686
1439
2943
31
94
190
423
627
1316
2679
Tubing
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
27
82
167
368
545
1142
2310
24
73
150
331
488
1023
2059
22
67
138
303
446
935
1874
19
58
121
264
388
811
1616
17
52
109
237
348
727
1441
15
47
101
217
318
664
1311
14
44
94
202
295
616
1211
13
41
88
189
276
577
1131
12
39
83
179
261
544
1064
12
37
80
170
247
517
1008
11
35
76
162
236
493
960
10
34
73
156
226
472
917
10
32
71
150
218
454
880
10
31
68
145
210
438
847
9
30
66
140
203
423
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
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
5
10
15
20
25
30
40
50
60
70
80
90
100
621
430
347
298
265
241
207
184
167
154
143
135
127
1516 1077
882
765
685
626
543
487
445
412
386
364
346
2530 1840 1527 1338 1208 1111
973
879
808
753
708
671
639
6346 4548 3743 3259 2928 2682 2336 2098 1922 1785 1674 1582 1504
9937 7074 5798 5036 4514 4128 3585 3213 2938 2725 2552 2409 2287
21129 15016 12297 10672 9561 8739 7584 6795 6211 5756 5390 5086 4829
48882 34199 27750 23926 21327 19415 16739 14921 13583 12546 11711 11022 10439
Tubing
125
150
113
310
577
1351
2050
4326
9305
103
283
530
1237
1875
3954
8471
Tubing Length (ft)
EHD
Size
200
250
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
88
246
465
1078
1628
3432
7303
78
220
420
968
1460
3074
6510
71
201
386
887
1335
2810
5926
61
174
338
772
1159
2439
5110
54
156
305
694
1039
2185
4555
49
143
281
636
950
1997
4146
45
132
261
590
881
1851
3829
42
124
246
553
825
1733
3575
40
117
233
523
779
1636
3364
38
111
222
497
740
1553
3186
36
106
212
475
706
1482
3034
34
101
204
455
676
1419
2901
33
97
197
438
650
1365
2783
31
94
190
423
627
1316
2679
30
91
184
409
606
1272
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
87
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
5
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
10
15
20
25
30
40
50
60
70
80
90
100
125
150
1205
835
674
578
514
467
401
356
323
298
278
261
247
219
199
2814 1999 1636 1420 1272 1162 1008
903
825
765
716
676
641
575
525
4498 3272 2716 2380 2148 1975 1731 1562 1437 1338 1259 1192 1136 1025
943
11588 8305 6834 5952 5346 4898 4265 3831 3510 3259 3057 2888 2746 2467 2260
18365 13074 10717 9307 8342 7629 6625 5939 5431 5036 4716 4452 4228 3790 3465
39170 27837 22796 19783 17724 16201 14060 12596 11514 10672 9992 9429 8952 8020 7331
93226 65223 52924 45632 40675 37027 31925 28457 25905 23926 22335 21020 19909 17746 16155
Tubing
Tubing Length (ft)
EHD
Size
200
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
250
300
171
152
138
456
408
373
826
746
686
1968 1768 1619
3010 2698 2467
6362 5699 5210
13929 12416 11302
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
119
324
601
1410
2142
4521
9745
105
290
542
1267
1920
4051
8686
96
265
499
1161
1756
3703
7907
88
246
465
1078
1628
3432
7303
82
230
437
1011
1525
3213
6818
77
217
414
955
1440
3032
6416
73
206
395
908
1367
2879
6077
69
196
378
867
1305
2747
5786
66
188
363
832
1250
2631
5532
64
181
350
800
1202
2530
5309
61
174
338
772
1159
2439
5110
59
169
328
747
1121
2357
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
5
10
15
20
25
30
40
50
60
70
80
90
100
125
150
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
1738
1205
972
835
742
674
578
514
467
430
401
377
356
317
287
3961
2814
2303
1999
1790
1636
1420
1272
1162
1077
1008
951
903
809
739
6185
4498
3734
3272
2953
2716
2380
2148
1975
1840
1731
1640
1562
1410
1297
16169
11588
9536
8305
7460
6834
5952
5346
4898
4548
4265
4030
3831
3442
3153
25798
18365
15054
13074
11719
10717
9307
8342
7629
7074
6625
6254
5939
5323
4868
55115
39170
32076
27837
24939
22796
19783
17724
16201
15016
14060
13267
12596
11284
10315
133253
93226
75647
65223
58138
52924
45632
40675
37027
34199
31925
30045
28457
25365
23091
250
300
400
500
600
700
Tubing
Tubing Length (ft)
EHD
Size
200
13
19
23
31
37
48
60
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
247
641
1136
2746
4228
8952
19909
219
199
171
152
138
127
575
525
456
408
373
346
1025
943
826
746
686
639
2467 2260 1968 1768 1619 1504
3790 3465 3010 2698 2467 2287
8020 7331 6362 5699 5210 4829
17746 16155 13929 12416 11302 10439
800
900
1000
1100
1200
1300
1400
1500
119
324
601
1410
2142
4521
9745
111
305
569
1333
2022
4266
9171
105
290
542
1267
1920
4051
8686
100
277
519
1210
1833
3865
8270
96
265
499
1161
1756
3703
7907
92
255
481
1117
1689
3559
7588
88
246
465
1078
1628
3432
7303
85
237
450
1043
1574
3317
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.
88
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
7.5
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
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
225
250
275
300
325
350
375
400
425
450
475
500
525
550
600
625
650
675
700
725
750
775
800
825
850
875
900
925
950
975
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
CFH
0.005
0.020
0.044
0.075
0.114
0.161
0.216
0.278
0.347
0.424
0.508
0.599
0.696
0.801
0.913
1.031
1.156
1.288
1.427
1.572
1.964
2.397
2.870
3.383
3.935
4.527
0.001
0.002
0.005
0.009
0.014
0.020
0.028
0.037
0.047
0.058
0.070
0.083
0.098
0.114
0.131
0.149
0.169
0.190
0.212
0.235
0.298
0.369
0.448
0.534
0.628
0.730
0.840
0.957
1.082
1.215
1.356
1.504
1.660
1.824
2.176
2.364
2.559
2.763
2.974
3.193
3.420
3.655
3.898
4.149
4.408
4.674
4.949
0.000
0.000
0.001
0.002
0.003
0.004
0.006
0.008
0.011
0.013
0.017
0.020
0.024
0.028
0.033
0.037
0.043
0.048
0.054
0.061
0.079
0.099
0.122
0.147
0.175
0.206
0.239
0.275
0.314
0.356
0.400
0.447
0.497
0.551
0.665
0.727
0.792
0.860
0.931
1.005
1.081
1.161
1.245
1.331
1.420
1.513
1.608
1.707
1.809
1.915
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.002
0.002
0.003
0.003
0.004
0.004
0.005
0.006
0.007
0.008
0.009
0.010
0.011
0.014
0.017
0.021
0.026
0.030
0.035
0.041
0.046
0.053
0.059
0.066
0.074
0.082
0.090
0.108
0.118
0.127
0.138
0.149
0.160
0.172
0.184
0.196
0.209
0.223
0.237
0.251
0.266
0.281
0.296
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.002
0.003
0.003
0.004
0.004
0.004
0.005
0.006
0.008
0.010
0.011
0.013
0.016
0.018
0.020
0.023
0.026
0.029
0.032
0.036
0.039
0.047
0.051
0.055
0.059
0.064
0.069
0.074
0.079
0.084
0.089
0.095
0.101
0.107
0.113
0.119
0.126
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.003
0.003
0.003
0.004
0.005
0.005
0.006
0.006
0.007
0.008
0.009
0.010
0.011
0.012
0.013
0.014
0.015
0.016
0.017
0.019
0.020
0.021
0.022
0.024
0.025
0.026
0.028
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.002
0.002
0.002
0.003
0.003
0.003
0.003
0.004
0.004
0.004
0.004
0.005
0.005
0.005
0.005
0.006
0.006
0.006
1000
1050
1100
1150
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
2000
2050
2100
2150
2200
2250
2300
2350
2400
2450
2500
2550
2600
2650
2700
2750
2800
2850
2900
2950
3000
3050
3100
3150
3200
3250
3300
3350
3400
3450
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2.023
2.250
2.490
2.743
3.009
3.288
3.582
3.888
4.209
4.543
4.891
0.312
0.346
0.381
0.418
0.457
0.497
0.539
0.583
0.629
0.677
0.726
0.778
0.831
0.886
0.942
1.001
1.061
1.124
1.188
1.254
1.321
1.391
1.463
1.536
1.611
1.688
1.767
1.848
1.931
2.016
2.102
2.191
2.281
2.373
2.467
2.563
2.661
2.761
2.863
2.966
3.072
3.179
3.289
3.400
3.513
3.628
3.746
3.865
3.986
4.108
0.133
0.146
0.161
0.176
0.192
0.209
0.226
0.244
0.263
0.283
0.303
0.324
0.346
0.368
0.391
0.415
0.439
0.465
0.491
0.517
0.545
0.573
0.602
0.631
0.662
0.693
0.724
0.757
0.790
0.824
0.859
0.894
0.930
0.967
1.005
1.043
1.082
1.122
1.162
1.204
1.246
1.288
1.332
1.376
1.421
1.466
1.513
1.560
1.608
1.656
0.029
0.032
0.035
0.039
0.042
0.046
0.050
0.054
0.058
0.062
0.066
0.071
0.076
0.081
0.086
0.091
0.096
0.102
0.107
0.113
0.119
0.125
0.132
0.138
0.145
0.151
0.158
0.165
0.173
0.180
0.187
0.195
0.203
0.211
0.219
0.227
0.236
0.245
0.253
0.262
0.271
0.281
0.290
0.300
0.309
0.319
0.329
0.340
0.350
0.360
0.007
0.007
0.008
0.009
0.009
0.010
0.011
0.012
0.013
0.014
0.015
0.016
0.017
0.018
0.019
0.020
0.021
0.022
0.023
0.024
0.026
0.027
0.028
0.029
0.031
0.032
0.033
0.035
0.036
0.038
0.039
0.041
0.042
0.044
0.046
0.047
0.049
0.051
0.052
0.054
0.056
0.058
0.060
0.062
0.063
0.065
0.067
0.069
0.071
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
89
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
3500
3550
3600
3650
3700
3750
3800
3850
3900
3950
4000
4050
4100
4150
4200
4250
4300
4350
4400
4450
4500
4550
4600
4650
4700
4750
4800
4850
4900
4950
5000
5100
5200
5300
5400
5500
5600
5700
5800
5900
6000
6100
6200
6300
6400
6500
6600
6700
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
CFH
4.233
4.360
4.489
4.620
4.752
4.887
1.706
1.756
1.807
1.858
1.910
1.963
2.017
2.072
2.127
2.183
2.240
2.297
2.355
2.414
2.474
2.534
2.596
2.657
2.720
2.784
2.848
2.913
2.978
3.045
3.112
3.180
3.248
3.318
3.388
3.459
3.530
3.676
3.824
3.976
4.130
4.288
4.448
4.612
4.779
4.948
0.371
0.382
0.393
0.404
0.415
0.427
0.438
0.450
0.462
0.474
0.487
0.499
0.512
0.524
0.537
0.550
0.564
0.577
0.590
0.604
0.618
0.632
0.646
0.661
0.675
0.690
0.704
0.719
0.735
0.750
0.765
0.797
0.829
0.861
0.895
0.929
0.963
0.998
1.034
1.071
1.108
1.146
1.184
1.223
1.263
1.303
1.344
1.386
0.076
0.078
0.080
0.082
0.084
0.086
0.089
0.091
0.093
0.096
0.098
0.100
0.103
0.105
0.108
0.110
0.113
0.115
0.118
0.120
0.123
0.126
0.128
0.131
0.134
0.137
0.139
0.142
0.145
0.148
0.151
0.157
0.163
0.169
0.175
0.182
0.188
0.195
0.201
0.208
0.215
0.222
0.229
0.236
0.244
0.251
0.259
0.266
6800
6900
7000
7100
7200
7300
7400
7500
7600
7700
7750
7800
7900
8000
8100
8200
8250
8300
8400
8500
8600
8700
8750
8800
8900
9000
9100
9200
9250
9300
9400
9500
9600
9700
9750
9800
9900
10000
10500
11000
11500
12000
12500
13000
13500
14000
14500
15000
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
1.428
1.471
1.515
1.559
1.604
1.650
1.696
1.743
1.790
1.838
1.863
1.887
1.937
1.987
2.037
2.089
2.115
2.141
2.193
2.247
2.301
2.355
2.383
2.411
2.467
2.523
2.580
2.638
2.667
2.697
2.756
2.816
2.876
2.937
2.968
2.999
3.062
3.125
3.450
3.792
4.149
4.524
4.915
0.274
0.282
0.290
0.298
0.306
0.315
0.323
0.331
0.340
0.349
0.353
0.358
0.367
0.376
0.385
0.394
0.399
0.404
0.413
0.423
0.432
0.442
0.447
0.452
0.462
0.472
0.482
0.493
0.498
0.503
0.514
0.524
0.535
0.546
0.551
0.557
0.568
0.579
0.637
0.697
0.760
0.825
0.893
0.964
1.037
1.113
1.191
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.
90
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 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
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
225
250
275
300
325
350
375
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
825
850
860
875
900
925
950
975
0.002
0.009
0.019
0.033
0.051
0.072
0.096
0.124
0.155
0.189
0.226
0.266
0.310
0.356
0.406
0.459
0.514
0.573
0.635
0.699
0.874
1.066
1.277
1.505
1.751
2.014
2.294
2.592
2.907
3.238
3.587
3.952
4.334
4.732
0.000
0.001
0.002
0.004
0.006
0.009
0.012
0.015
0.020
0.024
0.029
0.035
0.041
0.048
0.055
0.063
0.071
0.080
0.089
0.099
0.125
0.155
0.188
0.224
0.264
0.306
0.352
0.402
0.454
0.510
0.569
0.631
0.697
0.766
0.913
0.992
1.074
1.159
1.248
1.340
1.435
1.534
1.636
1.741
1.850
1.962
2.077
2.195
2.317
2.442
2.317
2.442
0.000
0.000
0.000
0.001
0.001
0.002
0.002
0.003
0.004
0.005
0.007
0.008
0.009
0.011
0.013
0.015
0.017
0.019
0.021
0.024
0.031
0.039
0.048
0.058
0.069
0.081
0.094
0.108
0.124
0.140
0.157
0.176
0.196
0.217
0.262
0.286
0.312
0.338
0.366
0.395
0.425
0.457
0.490
0.524
0.559
0.595
0.633
0.672
0.712
0.753
0.712
0.753
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.002
0.002
0.003
0.003
0.004
0.004
0.005
0.006
0.007
0.009
0.010
0.012
0.014
0.017
0.019
0.022
0.024
0.027
0.030
0.034
0.037
0.044
0.048
0.052
0.057
0.061
0.066
0.070
0.075
0.081
0.086
0.091
0.097
0.103
0.109
0.115
0.122
0.115
0.122
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.002
0.003
0.003
0.004
0.005
0.006
0.006
0.007
0.009
0.010
0.011
0.012
0.013
0.015
0.016
0.020
0.021
0.023
0.025
0.027
0.029
0.031
0.033
0.035
0.037
0.040
0.042
0.045
0.047
0.050
0.053
0.050
0.053
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.002
0.002
0.003
0.003
0.003
0.004
0.004
0.005
0.005
0.006
0.006
0.006
0.007
0.007
0.008
0.008
0.009
0.009
0.010
0.010
0.011
0.012
0.011
0.012
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.002
0.002
0.002
0.002
0.002
0.002
0.002
0.002
0.003
0.003
1000
1050
1100
1150
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
2000
2050
2100
2150
2200
2250
2300
2350
2400
2450
2500
2550
2600
2650
2700
2750
2800
2850
2900
2950
3000
3050
3100
3150
3200
3250
3300
3350
3400
3450
3500
3550
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2.571
2.838
3.119
3.413
3.720
4.041
4.375
4.723
0.796
0.885
0.979
1.079
1.184
1.294
1.409
1.530
1.656
1.787
1.924
2.066
2.214
2.368
2.527
2.691
2.861
3.037
3.219
3.406
3.599
3.798
4.003
4.213
4.429
4.651
4.879
0.128
0.142
0.156
0.171
0.187
0.204
0.221
0.239
0.258
0.277
0.298
0.319
0.341
0.363
0.386
0.410
0.435
0.461
0.487
0.514
0.542
0.570
0.600
0.630
0.661
0.692
0.725
0.758
0.792
0.826
0.862
0.898
0.935
0.973
1.012
1.051
1.091
1.132
1.174
1.216
1.259
1.304
1.348
1.394
1.440
1.488
1.536
1.585
1.634
1.684
1.736
1.788
0.055
0.061
0.067
0.074
0.080
0.087
0.094
0.102
0.110
0.118
0.126
0.135
0.144
0.154
0.163
0.173
0.183
0.194
0.205
0.216
0.227
0.239
0.251
0.263
0.276
0.289
0.302
0.316
0.330
0.344
0.358
0.373
0.388
0.404
0.419
0.435
0.451
0.468
0.485
0.502
0.520
0.538
0.556
0.574
0.593
0.612
0.631
0.651
0.671
0.691
0.712
0.733
0.012
0.014
0.015
0.016
0.018
0.019
0.021
0.022
0.024
0.026
0.028
0.030
0.032
0.034
0.036
0.038
0.040
0.043
0.045
0.047
0.050
0.053
0.055
0.058
0.061
0.063
0.066
0.069
0.072
0.075
0.079
0.082
0.085
0.088
0.092
0.095
0.099
0.102
0.106
0.110
0.114
0.118
0.122
0.126
0.130
0.134
0.138
0.142
0.147
0.151
0.156
0.160
0.003
0.003
0.003
0.004
0.004
0.004
0.005
0.005
0.006
0.006
0.006
0.007
0.007
0.008
0.008
0.009
0.009
0.010
0.010
0.011
0.011
0.012
0.012
0.013
0.013
0.014
0.015
0.015
0.016
0.016
0.017
0.018
0.018
0.019
0.020
0.021
0.021
0.022
0.023
0.024
0.024
0.025
0.026
0.027
0.028
0.028
0.029
0.030
0.031
0.032
0.033
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
91
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
3600
3650
3700
3750
3800
3850
3900
3950
4000
4050
4100
4150
4200
4250
4300
4350
4400
4450
4500
4550
4600
4650
4700
4750
4800
4850
4900
4950
5000
5100
5200
5300
5400
5500
5600
5700
5800
5900
6000
6100
6200
6300
6400
6500
6600
6700
6800
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
CFH
1.840
1.894
1.948
2.004
2.060
2.116
2.174
2.232
2.292
2.352
2.412
2.474
2.536
2.600
2.664
2.728
2.794
2.861
2.928
2.996
3.065
3.135
3.205
3.276
3.349
3.422
3.495
3.570
3.645
3.799
3.955
4.115
4.279
4.445
4.615
4.788
4.964
4.445
4.529
4.615
4.701
4.788
4.876
4.964
0.754
0.775
0.797
0.819
0.842
0.864
0.887
0.911
0.935
0.958
0.983
1.007
1.032
1.058
1.083
1.109
1.135
1.162
1.188
1.215
1.243
1.270
1.298
1.327
1.355
1.384
1.414
1.443
1.473
1.534
1.596
1.659
1.724
1.789
1.856
1.924
1.994
2.065
2.137
2.210
2.284
2.360
2.437
2.516
2.595
2.676
2.758
0.165
0.169
0.174
0.179
0.184
0.189
0.194
0.199
0.204
0.209
0.214
0.220
0.225
0.231
0.236
0.242
0.247
0.253
0.259
0.265
0.271
0.277
0.283
0.289
0.295
0.301
0.308
0.314
0.321
0.334
0.347
0.361
0.375
0.389
0.404
0.418
0.433
0.449
0.464
0.480
0.496
0.513
0.529
0.546
0.563
0.581
0.599
0.035
0.036
0.037
0.038
0.039
0.040
0.041
0.042
0.043
0.044
0.045
0.046
0.047
0.048
0.049
0.050
0.051
0.052
0.054
0.055
0.056
0.057
0.058
0.059
0.061
0.062
0.063
0.064
0.066
0.068
0.071
0.074
0.076
0.079
0.082
0.085
0.088
0.091
0.094
0.097
0.100
0.103
0.106
0.109
0.113
0.116
0.119
6900
7000
7100
7200
7300
7400
7500
7600
7700
7750
7800
7900
8000
8100
8200
8250
8300
8400
8500
8600
8700
8750
8800
8900
9000
9100
9200
9250
9300
9400
9500
9600
9700
9750
9800
9900
10000
10500
11000
11500
12000
12500
13000
13500
14000
14500
15000
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2.841
2.926
3.012
3.099
3.188
3.277
3.368
3.460
3.554
3.601
3.649
3.745
3.842
3.941
4.041
4.091
4.142
4.244
4.348
4.453
4.559
4.613
4.666
4.775
4.885
4.997
0.617
0.635
0.653
0.672
0.691
0.711
0.730
0.750
0.770
0.781
0.791
0.812
0.833
0.854
0.875
0.886
0.897
0.919
0.942
0.964
0.987
0.999
1.010
1.034
1.057
1.081
1.106
1.118
1.130
1.155
1.180
1.205
1.231
1.244
1.257
1.283
1.309
1.446
1.589
1.739
1.896
2.060
2.230
2.408
2.592
2.784
2.982
0.123
0.126
0.130
0.133
0.137
0.141
0.144
0.148
0.152
0.154
0.156
0.160
0.164
0.168
0.172
0.174
0.176
0.180
0.184
0.188
0.192
0.195
0.197
0.201
0.206
0.210
0.215
0.217
0.219
0.224
0.228
0.233
0.238
0.240
0.243
0.247
0.252
0.277
0.303
0.331
0.359
0.389
0.420
0.451
0.485
0.519
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.
92
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
7.6
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
Diameter (in.)
Pipe Size (in.)
10
20
30
40
50
60
Run Length (ft)
70
80
90
100
125
150
175
200
0.364
0.493
0.622
0.824
1.049
1.38
1.61
2.067
2.469
3.068
4.026
1/4"
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
43
95
175
360
680
1400
2100
3950
6300
11000
23000
29
65
120
250
465
950
1460
2750
4350
7700
15800
24
52
97
200
375
770
1180
2200
3520
6250
12800
20
45
82
170
320
660
990
1900
3000
5300
10900
18
40
73
151
285
580
900
1680
2650
4750
9700
16
36
66
138
260
530
810
1520
2400
4300
8800
15
33
61
125
240
490
750
1400
2250
3900
8100
14
31
57
118
220
460
690
1300
2050
3700
7500
13
29
53
110
205
430
650
1220
1950
3450
7200
12
27
50
103
195
400
620
1150
1850
3250
6700
11
24
44
93
175
360
550
1020
1650
2950
6000
10
22
40
84
160
325
500
950
1500
2650
5500
9
20
37
77
145
300
460
850
1370
2450
5000
8
19
35
72
135
280
430
800
1280
2280
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
93
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
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
225
250
275
300
325
350
375
400
425
450
475
500
525
550
575
600
625
650
675
700
725
750
775
800
0.0
0.001
0.002
0.003
0.005
0.007
0.010
0.012
0.015
0.019
0.022
0.026
0.030
0.035
0.039
0.044
0.050
0.055
0.061
0.067
0.083
0.101
0.121
0.142
0.164
0.189
0.214
0.241
0.270
0.300
0.332
0.365
0.399
0.435
0.472
0.511
0.551
0.592
0.635
0.679
0.724
0.771
0.820
0.869
0.0
0.000
0.001
0.001
0.001
0.002
0.002
0.003
0.004
0.005
0.006
0.007
0.008
0.009
0.010
0.011
0.013
0.014
0.016
0.017
0.021
0.026
0.031
0.036
0.042
0.048
0.055
0.062
0.069
0.077
0.085
0.093
0.102
0.111
0.121
0.131
0.141
0.151
0.162
0.174
0.185
0.197
0.210
0.222
0.0
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.002
0.003
0.003
0.004
0.004
0.004
0.005
0.005
0.007
0.008
0.010
0.011
0.013
0.015
0.017
0.019
0.021
0.024
0.026
0.029
0.032
0.034
0.037
0.041
0.044
0.047
0.050
0.054
0.057
0.061
0.065
0.069
0.0
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.003
0.003
0.003
0.004
0.004
0.005
0.006
0.006
0.007
0.008
0.008
0.009
0.010
0.011
0.012
0.012
0.013
0.014
0.015
0.016
0.017
0.018
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.002
0.002
0.003
0.003
0.003
0.004
0.004
0.004
0.005
0.005
0.005
0.006
0.006
0.007
0.007
0.008
0.008
0.009
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.002
0.002
0.002
0.002
0.002
0.002
0.003
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
Tables calculated from National Fuel Gas Code NFPA-54 tables. 7.7
94
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 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
850
875
900
925
950
975
1000
1050
1100
1150
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
2000
2050
2100
2150
2200
2250
2300
2350
2400
2450
2500
2550
2600
2650
2700
2750
2800
0.920
0.972
1.026
1.080
1.137
1.194
1.253
1.313
1.437
1.566
1.700
1.839
1.983
2.132
2.286
2.445
2.609
2.778
2.951
3.130
3.313
3.501
3.693
3.891
4.093
4.300
4.511
4.727
4.948
5.173
5.403
5.638
5.877
6.121
6.369
6.622
6.879
7.141
7.407
7.677
7.953
8.232
8.516
8.805
0.235
0.249
0.262
0.276
0.291
0.305
0.320
0.336
0.367
0.400
0.435
0.470
0.507
0.545
0.585
0.625
0.667
0.710
0.755
0.800
0.847
0.895
0.945
0.995
1.047
1.100
1.154
1.209
1.266
1.323
1.382
1.442
1.503
1.565
1.629
1.694
1.759
1.826
1.894
1.964
2.034
2.105
2.178
2.252
0.073
0.077
0.081
0.086
0.090
0.095
0.099
0.104
0.114
0.124
0.135
0.146
0.157
0.169
0.181
0.194
0.207
0.220
0.234
0.248
0.263
0.278
0.293
0.309
0.325
0.341
0.358
0.375
0.393
0.410
0.429
0.447
0.466
0.486
0.505
0.525
0.546
0.567
0.588
0.609
0.631
0.653
0.676
0.699
0.019
0.020
0.022
0.023
0.024
0.025
0.026
0.028
0.030
0.033
0.036
0.039
0.042
0.045
0.048
0.051
0.055
0.058
0.062
0.066
0.070
0.073
0.078
0.082
0.086
0.090
0.095
0.099
0.104
0.109
0.113
0.118
0.123
0.128
0.134
0.139
0.144
0.150
0.155
0.161
0.167
0.173
0.179
0.185
0.009
0.010
0.010
0.011
0.011
0.012
0.012
0.013
0.014
0.016
0.017
0.018
0.020
0.021
0.023
0.024
0.026
0.028
0.029
0.031
0.033
0.035
0.037
0.039
0.041
0.043
0.045
0.047
0.049
0.051
0.054
0.056
0.058
0.061
0.063
0.066
0.068
0.071
0.074
0.076
0.079
0.082
0.085
0.088
0.003
0.003
0.003
0.003
0.003
0.004
0.004
0.004
0.004
0.005
0.005
0.005
0.006
0.006
0.007
0.007
0.008
0.008
0.009
0.009
0.010
0.010
0.011
0.012
0.012
0.013
0.013
0.014
0.015
0.015
0.016
0.017
0.017
0.018
0.019
0.020
0.020
0.021
0.022
0.023
0.024
0.024
0.025
0.026
0.001
0.001
0.001
0.001
0.001
0.001
0.002
0.002
0.002
0.002
0.002
0.002
0.002
0.003
0.003
0.003
0.003
0.003
0.004
0.004
0.004
0.004
0.005
0.005
0.005
0.005
0.006
0.006
0.006
0.006
0.007
0.007
0.007
0.008
0.008
0.008
0.009
0.009
0.009
0.010
0.010
0.010
0.011
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
95
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
2850
2900
2950
3000
3050
3100
3150
3200
3250
3300
3350
3400
3450
3500
3550
3600
3650
3700
3750
3800
3850
3900
3950
4000
4050
4100
4150
4200
4250
4300
4350
4400
4450
4500
4550
4600
4650
4700
4750
4800
4850
4900
1/2"
9.097
9.395
9.696
10.002
10.312
10.627
10.946
11.269
11.597
11.929
12.265
12.606
12.951
13.300
13.653
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
2.327
2.403
2.480
2.558
2.638
2.718
2.800
2.882
2.966
3.051
3.137
3.224
3.312
3.402
3.492
3.583
3.676
3.770
3.864
3.960
4.057
4.155
4.254
4.354
4.455
4.557
4.660
4.765
4.870
4.976
5.084
5.193
5.302
5.413
5.524
5.637
5.751
5.866
5.982
6.099
6.216
6.335
0.722
0.745
0.769
0.794
0.818
0.843
0.868
0.894
0.920
0.946
0.973
1.000
1.028
1.055
1.083
1.112
1.140
1.169
1.199
1.228
1.258
1.289
1.320
1.351
1.382
1.414
1.446
1.478
1.511
1.544
1.577
1.611
1.645
1.679
1.714
1.749
1.784
1.820
1.856
1.892
1.928
1.965
0.191
0.197
0.204
0.210
0.216
0.223
0.230
0.237
0.243
0.250
0.257
0.265
0.272
0.279
0.287
0.294
0.302
0.309
0.317
0.325
0.333
0.341
0.349
0.357
0.366
0.374
0.382
0.391
0.400
0.408
0.417
0.426
0.435
0.444
0.453
0.463
0.472
0.481
0.491
0.501
0.510
0.520
0.090
0.093
0.096
0.099
0.103
0.106
0.109
0.112
0.115
0.119
0.122
0.125
0.129
0.132
0.136
0.139
0.143
0.147
0.150
0.154
0.158
0.161
0.165
0.169
0.173
0.177
0.181
0.185
0.189
0.193
0.198
0.202
0.206
0.210
0.215
0.219
0.224
0.228
0.233
0.237
0.242
0.246
0.027
0.028
0.029
0.030
0.031
0.031
0.032
0.033
0.034
0.035
0.036
0.037
0.038
0.039
0.040
0.041
0.043
0.044
0.045
0.046
0.047
0.048
0.049
0.050
0.052
0.053
0.054
0.055
0.056
0.058
0.059
0.060
0.061
0.063
0.064
0.065
0.067
0.068
0.069
0.071
0.072
0.073
0.011
0.012
0.012
0.013
0.013
0.013
0.014
0.014
0.015
0.015
0.015
0.016
0.016
0.017
0.017
0.018
0.018
0.018
0.019
0.019
0.020
0.020
0.021
0.021
0.022
0.022
0.023
0.023
0.024
0.024
0.025
0.025
0.026
0.026
0.027
0.028
0.028
0.029
0.029
0.030
0.030
0.031
Tables calculated from National Fuel Gas Code NFPA-54 tables.
96
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 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
4950
5000
5100
5200
5300
5400
5500
5600
5700
5800
5900
6000
6100
6200
6300
6400
6500
6600
6700
6800
6900
7000
7100
7200
7300
7400
7500
7750
8000
8250
8500
8750
9000
9250
9500
9750
10000
11000
12000
13000
14000
15000
1/2"
3/4"
6.455
6.577
6.822
7.071
7.324
7.582
7.843
8.109
8.379
8.652
8.930
9.212
9.498
9.788
10.081
10.379
10.681
10.987
11.296
11.610
11.927
12.249
12.574
12.904
13.237
13.574
1"
2.003
2.040
2.116
2.194
2.272
2.352
2.433
2.516
2.599
2.684
2.770
2.858
2.946
3.036
3.127
3.220
3.313
3.408
3.504
3.602
3.700
3.800
3.901
4.003
4.106
4.211
4.317
4.586
4.864
5.148
5.440
5.740
6.046
6.361
6.682
7.011
7.346
8.762
10.291
11.931
13.683
1-1/4"
1-1/2"
2"
2-1/2"
0.530
0.540
0.560
0.580
0.601
0.622
0.644
0.666
0.688
0.710
0.733
0.756
0.780
0.803
0.827
0.852
0.877
0.902
0.927
0.953
0.979
1.005
1.032
1.059
1.086
1.114
1.142
1.213
1.287
1.362
1.439
1.519
1.600
1.683
1.768
1.855
1.944
2.318
2.723
3.157
3.620
4.113
0.251
0.256
0.265
0.275
0.285
0.295
0.305
0.315
0.326
0.336
0.347
0.358
0.369
0.380
0.392
0.403
0.415
0.427
0.439
0.451
0.464
0.476
0.489
0.502
0.515
0.528
0.541
0.575
0.609
0.645
0.682
0.719
0.758
0.797
0.837
0.878
0.921
1.098
1.289
1.495
1.715
1.948
0.075
0.076
0.079
0.082
0.085
0.088
0.091
0.094
0.097
0.100
0.103
0.107
0.110
0.113
0.117
0.120
0.124
0.127
0.131
0.134
0.138
0.142
0.146
0.149
0.153
0.157
0.161
0.171
0.181
0.192
0.203
0.214
0.226
0.237
0.249
0.262
0.274
0.327
0.384
0.445
0.511
0.580
0.032
0.032
0.033
0.035
0.036
0.037
0.038
0.040
0.041
0.042
0.044
0.045
0.046
0.048
0.049
0.051
0.052
0.054
0.055
0.057
0.058
0.060
0.061
0.063
0.065
0.066
0.068
0.072
0.077
0.081
0.086
0.090
0.095
0.100
0.105
0.111
0.116
0.138
0.162
0.188
0.216
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
97
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)
1/2 PSI =
13.842"WC =
(approx. 14"WC)
1 PSI =
27.684"WC =
(approx. 28"WC)
2 PSI =
55.368"WC =
(approx. 56"WC)
5 PSI =
138.42"WC = (approx. 140"WC)
Natural Gas
Propane
BTU per Cubic Foot =
1000
2516
Specific Gravity =
0.60
1.52
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.
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.
The 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).
or
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).
98
Specific Gravity
Multiplier
Specific Gravity
Multiplier
0.35
0.40
0.45
0.50
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
1.31
1.23
1.16
1.10
1.04
1.00
0.96
0.93
0.90
0.87
0.84
0.82
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.10
0.78
0.74
0.71
0.68
0.66
0.63
0.61
0.59
0.58
0.56
0.55
0.54
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
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 – The organization, office or individual responsible for “approving”
equipment, an installation or procedure.
BONDING (BONDED) – The 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 – The 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
99
SECTION 8: DEFINITIONS / SEPTEMBER 2017
LEAK TEST SOLUTION – A solution of commercial leak-testing fluids may be used. The 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. The fluid should be capable of being applied free of bubbles so that a bubble appears only at a leak. The
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 – The 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 – The 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. The 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 – The 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.
100
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
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"
FlashShield™ Part Number
-FS-8
FS-11
FS-16
FS-20
Gastite Part Number
S93-6A4
S93-8A4
S93-11B4
S93-16A4
S93-20A4
Equivalent Hydraulic Diameter (EHD)
13
19
23
31
37
Inside Nominal Diameter (in.)
0.39
0.58
0.75
1.04
1.25
Outside Diameter (w/o jacket) (in.)
0.51
0.72
0.92
1.26
1.50
FlashShield™ Outside Diameter, w/jacket (in.)
-0.83
1.03
1.37
1.61
Gastite Outside Diameter, w/jacket (in.)
0.56
0.76
0.98
1.30
1.55
Length of Standard Reels (Ft)
50-1,000
50-1,000
50-500
50-300
50-300
CSST Wall Thickness (in.)
0.01
0.01
0.01
0.01
0.011
Fits CSST Size
XR Series Fitting Part Number
Pipe Thread (NPT)
Adapter Hex Size
Nut Hex Size
Overall Length (in.)
Fits CSST Size
Fitting Part Number
Pipe Thread (NPT)
Flange Thread (NPT)
Square Flange Outside Dimension
Mounting Hole Pattern Diameter
1-1/2"
FS-24
S93-24A4
48
1.48
1.75
1.87
1.79
50-300
0.011
2"
FS-32
S93-32A4
60
1.98
2.32
2.48
2.40
50-150
0.012
Table 9-2
"XR" Series Straight Fitting – Dimensional Values
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
XR2FTG-6 XR3FTG-8 XR3FTG-11 XR3FTG-16 XR3FTG-20 XR3FTG-24 XR3FTG-32
1/2"
1/2"
3/4"
1"
1 1/4"
1-1/2"
2"
7/8"
1-1/8"
1-3/8"
1-3/4"
2"
2-5/16"
3"
1"
1-1/4"
1-9/16"
1-15/16"
2-3/16"
2-9/16"
3-1/4"
1.93
1.61
1.82
2.01
2.15
2.32
2.66
Table 9-3
"XR" Series Termination Fitting – Dimensional Values
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
XR2TRM-6 XR3TRM-8 XR3TRM-11 XR3TRM-16 XR3TRM-20 XR3TRM-24 XR3TRM-32
1/2"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
2-5/8"
2-5/8"
2-5/8"
2-5/8"
3-1/4"
3-1/4"
3-5/8"
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
101
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
Tubing Minimum Burst Pressure
Maximum Test Pressure
25 PSI
1,500 PSI
3/8", 1/2" & 3/4":
1":
1-1/4":
1-1/2":
2":
150 PSI
125 PSI
100 PSI
50 PSI
40 PSI
TEMPERATURE LIMITS
Stainless Steel Melting Point:
2,400°F
Plastic Jacket Melting Point:
Plastic Jacket Minimum Installation Temp (for bending):
Plastic Jacket Maximum Operating Temp:
205°F
-40°F
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:
Nut:
Split Bushings:
CA360 Brass
CA360 Brass
CA360 Brass
Termination Fitting:
Adapter:
Nut:
Split Bushing:
Flange:
CA360 Brass
CA360 Brass
CA360 Brass
Square Flange – Steel with Zinc Coating
PROTECTION DEVICES
Striker Plates:
Floppy Conduit:
16 Gage AISI 1050 Carbon Steel Hardened to Rc 45 with Black Oil and Phosphate Coating
Strip Wound Interlocking Steel (Heavy Wall)
ACCESSORIES
Valves:
Regulators:
Manifolds Cast:
102
Meet requirements of ANSI/ASME B16.33 (125 PSI) or AGA 3-88 (5 PSI)
Gas line pressure regulator std. ANSI/CGA Z21.80, CGA-6.22 with vent limiting device
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
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
Tubing Minimum Burst Pressure
Maximum Test Pressure
25 PSI
1,500 PSI
1/2" & 3/4":
1":
1-1/4":
1-1/2":
2":
150 PSI
125 PSI
100 PSI
50 PSI
40 PSI
TEMPERATURE LIMITS
Stainless Steel Melting Point:
2,400°F
Plastic Jacket Melting Point:
Plastic Jacket Minimum Installation Temp (for bending):
Plastic Jacket Maximum Operating Temp:
205°F
-40°F
160°F
SYSTEM MATERIALS
CORRUGATED STAINLESS STEEL TUBING
Tubing:
Jacket:
ASTM A240 Type 304 Stainless Steel
Electrically insulative and UV resistant polymer, complying with ASTM E84 and
CAN/ULC-S102.2 25/50.
FITTING MATERIAL
Mechanical Joint Fitting:
Adapter:
Nut:
Split Bushings:
CA360 Brass
CA360 Brass
CA360 Brass
PROTECTION DEVICES
Striker Plates:
Floppy Conduit:
16 Gage AISI 1050 Carbon Steel Hardened to Rc 45 with Black Oil and Phosphate Coating
Strip Wound Interlocking Steel (Heavy Wall)
ACCESSORIES
Valves:
Regulators:
Manifolds Cast:
Meet requirements of ANSI/ASME B16.33 (125 PSI) or AGA 3-88 (5 PSI)
Gas line pressure regulator std. ANSI/CGA Z21.80, CGA-6.22 with vent limiting device
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 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.
This 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.
The 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. This 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.
104
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
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) The 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) The 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
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 #
The following person has successfully completed the Gastite®/FlashShield™
Certification Training Program and is hereby recognized as a
Qualified Installer
Name
Instructor
Company
Issue Date
Valid for 90 Days from Date of Issue
Certificate No.
1-800-662-0208 / www.gastite.com
SEPTEMBER 2017
NOTES
GASTITE DIVISION, TITEFLEX CORPORATION / 1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / gastite@gastite.com
107
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
REV. SEPTEMBER 2017
DI-GUIDE-CA
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