Technical Manual

2016-12-09

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Ducting
866-455-2130

The world’s [ FA S T E S T ] ducting
www.ductingsystems.com

ID: 030112

Quick-Fit
Technical Manual

Easy & fast to install
Easy Clean-Outs
Leak-tight laser welded seams
Re-useable
Cuts installation and downtime
by more than 45%

Made in the USA
8 30 • ZZZGXFWLQJV\VWHPVFRP

9001:2008
14001:2004

TABLE OF CONTENTS

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THE WORLD’S FASTEST DUCTING

TABLE OF CONTENTS
DESCRIPTION

PAGE

ADJUSTABLE NIPPLE ASSEMBLY FOR DRY APPLICATION

AIR VOLUME CHART

BLAST GATE (AUTO)

22-23

BRANCH STYLES

CLAMP DIAGRAM

CLAMP GASKET ALTERNATIVES 8
COLLAPSIBILITY & LEAKAGE

CONSTRUCTION METHODS

DIVERTER VALVE

DRY SYSTEM INSTALLATION

ELBOWS 14

ENGINEERING SPECIFICATIONS 4-5
explosion isolation flap

30-31

FITTINGS 10
FLANGED DUCT SPECIFICATIONS 11
FLASHING (WALL & ROOF) 40
flex hose styles

FUME ARMS 28
GAUGE DATA SHEET & ORDERING INFORMATION 9
GRIPPLE HANGER SYSTEM
35

INLINE SILENCER
33
installing THE LEAK-FREE GASKET 43
INSTALLING THE LEAK-FREE O-RING 44
INSTALLING AN IN-CUT OR TAP-IN

jET cAP
mist recycler

29
34

NO LOSS STACKHEAD 29
REDUCER STYLES 18
RIGID & ULTRA FLEX METAL HOSE 21

RUBBER FLEX HOSE 20
sd blast gate auto

24-25

sd diverter valve

SIZING A SYSTEM & USING THE CHART 45
SIZING BRANCHES 16
SIZING ELBOWS & SPECIAL COMPONENTS 13

sliding access panel

STRUCTURAL INTEGRITY & LEAKAGE CLASS 3
TAKE-OFF SHEET 47

THINGS TO BE AWARE OF WHEN ORDERING 9

TRANSITION STYLES 17
TYPICAL CEILING HANGING METHOD 37

WALL MOUNTING BRACE 36

WET APPLICATION MATERIALS 42
WET SYSTEM INSTALLATION

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STRUCTURAL INTEGRITY &
LEAKAGE CLASS

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THE WORLD’S FASTEST DUCTING

NORDFAB
December 16, 2011
To whom it may concern
Reference:

Structural integrity of “QF” Piping System

The Nordfab Laser “Quick-Fit” Piping System has been used in many different industrial applications, and under
various negative static pressures.
The typical design range we see in our applications range from -2” wg to -28” wg, however we have some systems
operating at vacuums of -32” wg to -42” wg under normal operating parameters.
Please take into account that our pipe comes in 5’ lengths with a rolled lip on each end, thus providing reinforcement
every 5’, which presents a sound structural design that should be stronger than any pipe in its class according to
SMACNA guidelines and regulations.
Sincerely,
Tom Ballus
President

STRUCTURAL INTEGRITY
All ﬁt together ducting systems allow for some degree of leakage. “Q-F” ducting is no exception and is not sold
as an airtight system. In addition to our standard Nitrile gasket, NORDFAB offers special clamp gasket material
for high heat, food applications, etc. However, the “Q-F” system is sold as a quick way of installing and modifying
duct-work while at the same time retaining the usability of each component. In short, “Q-F” is meant to be able to
be taken apart, re-assembled, stored or moved. Completely eliminating the possibility for leakage jeopardizes the
inherent beneﬁts of the duct.
While NORDFAB is currently unaware of any method of evaluating dust collection piping alone, the following data
is presented using the criteria for all duct, including HVAC. This data is presented only for the purpose of indicating
acceptability of the “Q-F” in dust/fume removal in a negative pressure situation and should not be confused with the
ducting that uses tape or gaskets as sealant in the positive conveyance of air.

LEAKAGE CLASS DETERMINED IN ACCORDANCE WITH SMACNA
Duct Size

Avg. leakage per 100 ft.

SMACNA CLASS

5” SP

IO” SP

4” 6”

5 CFM

6 CFM

7” 10”

2.5 CFM

3.5 CFM

11” 24”

2 CFM

4 CFM

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ENGINEERING SPECIFICATION

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THE WORLD’S FASTEST DUCTING

GENERAL ENGINEERING SPECIFICATION FOR
NORDFAB QUICK FIT DUCTING
MANUFACTURING PROFILE:
Nordfab Quick-Fit Ducting is manufactured in Thomasville, NC and Sparks, NV. Nordfab duct is a clamp-together
design using a rolled edge design with a single lever clamp. The ducting and clamps are made of similar materials.
During manufacturing the duct material sheet blanks, which are ﬁve feet long, are rolled and fused together with a
laser weld process along the longitudinal seam. Each pipe is checked with a light apparatus for any welding ﬂaws
or gaps. The rolled edge is then die-formed after inspection by rolling each end of the pipe simultaneously. The
laser weld prevents any gaps in the rolled edge from forming. This rolled end is used for clamping components together as well as offering reinforcement every ﬁve feet. All clamps contain a standard gasket made of Nitrile which
is suitable for most applications, including oil mist, as long as high temperatures are not an issue. An ePTFE gasket
option is available for food grade and high temp applications. Nordfab Quick-Fit Ducting is available in 1” increments sized 3” to 24” diameter.
Engineering Speciﬁcation:
1.
Ducting shall consist of the following:
a. Galvanized: ASTM A527 with a G90 rating
i. Temp rating is 500° F with no breakdown of zinc - Zinc melting point is 740° F
b. 304SS: Finish meets ASTM A240
i. Temp rating is 1,100° F
c. 316SS: Finish meets ASTM A240
i. Temp rating is 1,100° F
2.

Ducting manufacturing techniques:
a. Diameters 3” - 24” pipe, adjustable nipples, and collars attached to other components will have one
or both ends die formed-rolled to provide a uniform edge around the circumference of the rolled
end. The pipe and adjustable nipples shall have the longitudinal seam laser welded to allow for a
tighter slip joint and reduce system pressure losses. All laser welded seams will undergo a light test to
ensure there are no voids or imperfections in the system. Pipe lengths using laser welded seams will
not exceed a nominal 60” length. The rolled edges provide structural support at 5’ intervals or less
and can be interpreted as a stiffener where SMACNA speciﬁcations are required. An adjustable
nipple is used for adjustment during the install process. Pipe is cut to appropriate length and the
adjustable nipple secures the pipe for install.
b. Pipe and other components larger than 24” shall utilize either an angle ﬂange or ﬂat ﬂange attached
loosely and retained in place using a 3/8” vanstone lip. The pipe shall have a compressed-interlocking
lap form seam and not exceed 78” in length. The angle or ﬂat ﬂanges provide structural support at
6’-6” intervals or less and are considered as stiffeners where SMACNA speciﬁcations are required.
c. There will be times when certain components will be air direction sensitive. These components will
have an arrow sticker attached showing the proper ﬂow direction.

d. All ducting and its components shall have been tested to 80” WG using the following
gauged reference:
i. 3” will use 18ga material thickness
ii. 4” through 12” will use 22ga material thickness
iii. 13” through 29” will use 20ga material thickness
iv. 30” and above will use 18ga material thickness
Engineering Speciﬁcation (cont.):

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ENGINEERING SPECIFICATION

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THE WORLD’S FASTEST DUCTING

Clamping rolled edged duct:
a. Clamps shall be constructed with an over-center, spring-lever action for quick connecting of two pieces
of ducting. A retaining pin shall be inserted in the handle and an eyelet on the clamp as a safety feature
to ensure the handle does not prematurely come undone.
b. When closing the clamp, the internal seal shall be compressed in such a manner as to cover both rolled
beads for optimum sealing capacity in a full 360° pattern.

Optional caulking and other materials governing system temperature ratings if applicable:
a. Approved caulk is 3M Scotch Seal Metal Sealant 2084 or equivalent for system temperatures of 250°F or lower
b. Optional approved caulk is 3M DP460 two part epoxy or equivalent for system temperatures of 375°F or lower
c. Optional approved caulk is RTV 100 Series, Mil-A-46106B Compliance, UL/FDA/NSF or equivalent for
system temperatures of 400°F or lower
d. Optional approved caulk is Permatex RTV Silicone Rubber Adhesive High Temperature Caulk (red in color) or
equivalent for system temperatures of 500°F or lower
e. Sealing gaskets
i. Buna-N, 70 Duro-Meter hardness with a temperature rating of 250°F maximum and is black in color,
used with the adjustable nipple
ii. Silicon rubber, ZZ-R-765 Class 2A and 2B grade 770 AMS-3304E and 3304F and 3303G, FDA approved
and is red in color, used with the adjustable nipple
iii. Molded gaskets shall meet the material classiﬁcation of ASTM D-2000 M2BG510 A24 B34 EO14 EO34
EF11 EF21 and used in systems where the temperature rating is 225°F or less and are black in color.
This component shall be made using conductive materials for conductivity.
iv. Sponge o-ring shall meet the material classiﬁcation of either ASTM D-1056-68 – SBE43 or ASTM
D1056-85, 91, 98 – 2B3
v. Clamp seals shall be made of either of the following:
1. Nitrile to meet or exceed ASTM D 1056 standards with a temperature rating not to exceed 158°F
constant temperature (or intermittent temperature of 194°F).
2. ePTFE to meet or exceed FDA /pharmaceutical standards for food usage and not be degraded
by any common chemicals in the 0-14 PH range. Temperature rating shall not exceed 600°F.

Conductivity:
a. Metal-to-metal contact shall be obtained at all joint connections. Die-formed rolled edges are uniform in shape
which provides the most consistent contact. The ears of the clamp contact with the rolled edges and provide
maximum conductivity. Conductivity shall be adhered to per NFPA 77 paragraph 8.4.1.1; states all parts of the
continuous metal piping system should have a resistance level that does not exceed 10 ohms. Testing is the
responsibility of the owner.

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COLLAPSIBILITY & LEAKAGE DATA

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THE WORLD’S FASTEST DUCTING

COLLAPSIBILITY & LEAKAGE DATA
COLLAPSIBILITY STRENGTH OF “Q-F” PIPING

Each size of piping has been tested for strength against collapsing. The piping was exposed to constant
positive pressure and constant vacuum. Each pipe was exposed to a maximum capacity of the test equipment
of 80” WG of vacuum and positive pressure. None of the pipe showed any form of deformation during the test.
Please take into account that our pipe comes in 5’ lengths with a rolled lip on each end, thus providing
reinforcement every 5’, which presents a sound structural design that should be stronger than any pipe in
its class. Pipe and ﬁttings must be installed in accordance with NORDFAB’s standard speciﬁcations and
standard accepted practices.

LEAKAGE RATE

All ﬁt together ducting systems allow for some degree of leakage where they are joined. “Q-F”
ducting is no exception and is not sold as an airtight system. However, versus the other ducting
typically used in ﬁt together systems, Nordfab’s Quick-Fit (Q-F) ducting has fully welded, leak-tight
laser welded seams. Spiral and other ducting with lock form seams are NOT fully welded at the seams
and can be expected to have higher leakage rates than “Q-F”.
In addition to our standard Nitrile gasket, NORDFAB also offers special clamp gasket material for high heat,
food applications, etc. Further, the applying of sealants to the individual rolled ends can enhance the tightness
of the system. However, the “Q-F” system is sold as a quick way of installing and modifying duct-work while at
the same time retaining the usability of each component. In short, “Q-F” is meant to be able to be taken apart,
re-assembled, stored, or moved. Completely eliminating the possibility for leakage jeopardizes the inherent
beneﬁts of the duct. Standard “Q-F” is designed to provide tight sealing and efﬁcient airﬂow under negative
pressures. To that end, we are providing the following information for piping situations where fan sizing is of
extreme importance. The following data was obtained using standard components and was performed in accordance with the SMACNA, “ HVAC AIR DUCT LEAKAGE TEST MANUAL”. The information gives the leakage rate per joint of duct at various pressures. To utilize the chart, count the number of clamps, (this equals the
number of pieces), per size and multiply by the number given beside the corresponding diameter and under the
applicable pressure. These numbers assume that the product is correctly installed; free of dents in the joining
ends and that the gasket is in place. Special gasket material and sealants will increase the sealing capabilities.

LEAKAGE RATE IN CFM PER QF JOINT
Dia Inches

3 WG

5 WG

7.5 WG

10 WG

15 WG

20 WG

25 WG

30 WG

0.20

0.25

0.30

0.35

0.50

0.60

0.80

0.20

0.25

0.30

0.35

0.50

0.60

0.80

0.20

0.25

0.30

0.35

0.50

0.60

0.80

0.20

0.25

0.30

0.35

0.50

0.60

0.80

0.20

0.25

0.30

0.35

0.50

0.60

0.80

0.20

0.25

0.30

0.35

0.50

0.60

0.80

0.20

0.25

0.30

0.35

0.50

0.60

0.80

0.30

0.40

0.60

0.70

0.90

0.30

0.50

0.70

0.80

0.90

1.10

0.30

0.40

0.60

0.70

1.00

1.10

1.20

1.40

0.40

0.70

0.80

1.10

1.30

1.50

1.70

0.40

0.60

0.80

0.90

1.20

1.50

1.70

2.00

0.40

0.60

0.80

1.10

1.40

1.50

2.00

2.20

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CLAMP DIAGRAM

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THE WORLD’S FASTEST DUCTING

Q-F CLAMP
Stainless Style

Position # 1
Seal Will Be Installed And Folded Over At
the Factory. It Will Release Easily Due
To The Pressure Sensitive Backing.

Position # 2

While Clamping Down, Slowly Tuck
Extra Seal Underneath The Opposing
Side Of Clamp.

See Detail on Right

Die Formed Rolled Edge

“QF” Clamp

Nitrile Gasket

Galvanized Style
Quick-Seal Clamps

Since 1986, the Nordfab Quick-Fit clamp has
been the world’s best selling and best sealing
duct clamp. It has set the standard for use in
industrial dust, mist, smoke and fume collection.
Many have tried to imitate it, but we’ve found
none who have ever matched, or improved upon,
its tight, leak-resistant seal.
Until now...
The New Nordfab Quick-Seal clamp uses our
new revolutionary “overlap” design. This ensures
the tightest seal possible.
Additionally, we have lengthened the handle for
the Quick-Seal clamp and made it stronger, giving you more leverage to clamp down for super
tight seals.

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CLAMP GASKET ALTERNATIVES

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THE WORLD’S FASTEST DUCTING

“Q-F” CLAMP GASKETING ALTERNATIVES
1.

NITRILE GASKET-STANDARD
•
•
•
•
•
•

Service temperature: -104° F to +158 ° F with an intermittent max temp of +194° F.
Standard seal installed in clamp
The standard speciﬁcations meet ASTM D 1056.
3/8” Gasket for 4”,5”,6”
1/2 ” Gasket for 7” - 11”
21/32” Gasket for 12” - 24”

ePTFE GASKET
•
•
•
•
•
•
•

Service temperature -450 DEG F. to 600 DEG F
FDA suitable for use in food and pharmaceutical industries
Not degraded by any common chemicals [0-14 PH range]
Non-contaminating and non-aging
3/8” gasket for 4”,5”,6”
1/2” gasket for 7” and larger
21/32” Gasket for 12” - 24”

O-RINGS
Temperature Rating:
250° F - O-ring Black: Included with adjustable nipples as standard
500° F - O-ring Red: Optional for higher temperatures and FDA approval Order separately and replace on site
Material Speciﬁcations:
O-ring Black: Buna-N, 70 Duro-Meter hardness
O-ring Red: Silicon rubber, ZZ-R-765 Class 2A and 2B grade 70 AMS-3304E and 3304F and 3303G, FDA
approved ordered separately and replace on site.

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GAUGE DATA SHEET &
ORDERING INFORMATION

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THE WORLD’S FASTEST DUCTING

QUICK-FIT GAUGE DATA SHEET
DIA

PIPE

PIPE STD
GAUGE

NIPPLE
ID

MAX GALV GA

NIPPLE STD
GAUGE

PIPE

NIPPLE

MAX SS GA
UPGRADE

3”

2.90

3.00

3.07

3.15

N/A

4”

3.86

3.93

3.96

4.03

5”

4.87

4.94

4.96

5.03

6”

5.89

5.96

5.99

6.06

7”

6.89

6.96

7.00

7.07

8”

7.88

7.95

8.00

8.06

9”

8.88

8.95

9.00

9.06

10”

9.89

9.95

10.00

10.07

11”

10.88

10.94

11.12

11.19

12”

11.97

12.04

12.11

12.17

13”

12.97

13.05

13.12

13.20

14”

13.96

14.04

14.10

14.18

15”

14.97

15.04

15.12

15.20

16”

15.97

16.04

16.10

16.18

17”

16.97

17.05

17.07

17.15

18”

17.96

18.04

18.10

18.18

19”

18.91

19.00

19.07

19.15

20”

19.96

20.04

20.10

20.18

21”

20.92

21.01

21.07

21.15

22”

21.97

22.05

22.11

22.19

23”

22.91

23.00

23.07

23.15

24”

23.94

24.02

24.06

24.14

THINGS TO BE AWARE OF WHEN ORDERING “Q-F”
1.

Order one clamp per “Q-F” component.
• One duct = one clamp
• Two elbows = two clamps

Specify dimensional information to speed up process:
• Transitions
A,B,D,L,X, Y and ﬂange style
• Branches
A x B x C, or A x B x D, or A x B x C x D
• Tap-In or In-cuts
A, B
• Reducer
All diameters and end style
THERE IS NO SUCH THING AS TOO MUCH INFORMATION !

Look for 60 degree elbows to compliment standard branch orders with 30˚ tap. This is typical application
since the two components will create a perpendicular run to the trunk line.

Ask for ﬂange styles, hole patterns, ID, OD, when applicable. Typical components
requiring ﬂanges will be parts that connect to ﬁlters, fans, or other types of equipment.

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FITTINGS

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THE WORLD’S FASTEST DUCTING

FITTINGS
A)

Branch ﬁttings are produced to have a concentric design, as they taper to a speciﬁc dimension.
Joints are lapped, spot welded, cleaned, and painted with KRYLON Industrial Tough Coat, Acrylic
Enamel #1760 Aluminum. Seams are sealed with 3M Scotch-Seal (R) 2084 grey sealant.

Fitting gauges vary from 22 to 16 gauge depending on the conﬁguration of the branch or ﬁtting.
Gauge can generally be determined by using the corresponding QF Pipe diameter gauge. If
exact gauge is required, contact factory for more information.

All standard branch ﬁttings are produced on a 30 degree angle, however other angles (7.5˚ - 90˚)
are available upon request.

As a normal practice, internal welds are not cleaned or painted. Cleaning or painting the inside
is an option based on the customer’s application and is done only at the customer’s request with
an upcharge.

EXAMPLES OF VARIOUS FITTINGS AVAILABLE

ANGLE
FLANGE

FLAT
FLANGE

NO
FIT

STANDARD

CUSTOM

INFORMATION NEEDED TO ORDER A CUSTOM FLANGE
Flange I.D.

Flange O.D.
Bolt Center

Dia. & Number
of Bolt Holes

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FLANGED DUCT SPECIFICATION

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THE WORLD’S FASTEST DUCTING

FLANGE DUCT SPECIFICATION
Standard Angle Flange

Sealant
(Not supplied by Nordfab)

Bolt & Nut
(Not supplied by
Nordfab)

3/8” Lip On Pipe

“Flanged” = Material sheet blanks are 78.75” lg. and rolled with a longitudinal lock formed
seam. An angle ﬂange made from angle bar stock rolled on edge is placed on
the end of the duct using a Van Stone Lip Connection as illustrated above.
(See Nordfab Catalog for sizes)

Refer to your local guidelines and codes for how ducting should be supported

Duct diameters for FLANGE DUCT as follows:
3” through 40” available in 1” increments

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CONSTRUCTION METHODS

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THE WORLD’S FASTEST DUCTING

ExAMPLES OF CONSTRUCTION METHODS
1.

LONGITUDINAL LASER WELD SEAM FOR “Q-F” PIPE
* Applies to all straight duct up to 24”, adapters, nipples, collars, and most elbows.
All Reno made elbows are supplied with standard seam - see ﬁgure 5 below
Laser Weld

Cross Section Through Pipe

STANDING SEAM
* Applied to segmented elbows, offsets and end caps.
Receiving Lip is
Pressed Over
By Machine

Cross Section of Standing Seam

LONGITUDINAL LOCK FORM SEAM ON FLANGE PIPE
* Applies to all straight duct ﬂanged lengths.

Lock Form Performed in 3-stages
1- Edges Formed
2- Pipe is Rolled
3- Seam Is Pressed Tight

OVERLAPPED, SPOT WELDED SEAM CONSTRUCTION AND QF COLLAR CONNECTION
* Applies to all branches, reducers, in-cuts, etc.
Overlapped
Construction

Spot Welded
Around
Circumference

“Q-F”Collar

STANDARD SEAM JOINING METHOD ON HOODS, BOXES, TRANSITIONS, AND SPECIALTY ITEMS
* Lapped, spot welded, and caulked.
Spot Welded
Around Circumference
Caulk

Typ. 1 /2“ Lap

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SIZING ELBOWS
& SPECIAL COMPONENTS

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THE WORLD’S FASTEST DUCTING

SIZING ELBOWS

The catalog lists the standard sizes and the standard gauges; however, NORDFAB also makes elbows in long
radius and in heavier gauges. The elbows can be made in segments or can be made smooth walled. Pricing for
the various sizes and gauges should be obtained by calling NORDFAB.

SPECIAL COMPONENTS
As with the elbows, NORDFAB is able to provide special hoods or special designed pieces for almost any dust
collection application. To obtain help in design or pricing, call NORDFAB.

ADAPTING TO ExISTING SYSTEMS
There will be instances where the customer will desire to apply “QF” duct to an existing ducting system;
NORDFAB makes adapters for this purpose. We can provide these in ﬂange to “QF” or through simply
supplying “raw to QF” adapters that can be attached to the end of existing spiral duct so that “QF” can be
coupled to the duct.

CAULK SELECTION AVAILABLE ON ALL COMPONENTS
Temperature Rating:
250° F - Standard Caulk - 3M Scotch Seal Metal Sealant 2084 - Standard (contact your dealer for pricing and
other options)
250° F - Optional Oil Mist - 3M 2084 Scotch Seal Metal Sealant
375 ° F - Optional Epoxy Caulk - 3M DP460
400° F - Optional RTV 100 Series, Mil-A-46106B Compliance, UL/FDA/NSF
500° F - Optional Permatex RTV Silicone Rubber Adhesive High Temperature Caulk - Red in color - 26C
Material Speciﬁcations:
Galvanized:
ASTM A527 with a G-90 rating
500° F - Galvanized with little or no breakdown of zinc - zinc melting point is 740° F
500° F - Optional galvanized and seams solid welded
304SS:
Finish meets ASTM A240
1100° F - 304SS bluing may occur at temperatures of 800° F
1100° F - Optional 304SS and seams solid welded
316SS:
Finish meets ASTM A240
Note: For temperatures 250° F. to 500° F. please request RTV High temp silicone caulk on components. Contact
NORDFAB for adder.
Galvanized: Ducting will accommodate systems 0 to 500° F. with little or no breakdown of the zinc coating - zinc
melting point is 740° F.
304SS: Ducting will accommodate systems 500 to 1100° F with no problems. With temps above 800° F, a small
amount of “bluing” may occur.

PAINTING GALVANIZED COMPONENTS
Step 1. Wash down all components with an industrial de-greaser, insuring that no oils or residues are left behind.
Step 2. Apply an epoxy primer in a light coating.
Step 3. For a ﬁnal coat, apply an acrylic water base paint. (Example: Glidden Lifemaster)

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ELBOWS

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THE WORLD’S FASTEST DUCTING

ELBOWS
A)

Standard elbows will have a centerline radii of 1 x dia & 1.5 x dia as speciﬁed in catalog .Longer
radius elbows are available upon request.

Standard elbows 3” to 7” are pressed formed, 8” and larger are gored construction with a lock
form standing seam every 15 degrees. Gore type elbows are produced as follows:
ANGLE IN DEGREES

NUMBER OF GORES

15º

(2) 7.5º + 2 tangents

30º

(1) 15º + (2) 7.5º + 2 tangents

45º

(2) 15º + (2) 7.5º + 2 tangents

60º

(3) 15º + (2) 7.5º + 2 tangents

90º

(5) 15º + (2) 7.5º + 2 tangents

ELBOW STANDARD AND UPGRADES FOR
QF AND ANGLE FLANGE
NOTE: TUBED ELBOWS ARE AVAILABLE @ 14 GA
EXCEPT 3-4” GAL @ 16GA

4” GALV. ELBOW CLR
ExAMPLE
1.32”

ELBOW
DIAMETER

GALV STD
GAUGE

SS STD GAUGE

ONE GAUGE
UPGRADE

MAX HEAVY
WALL STYLE
ELBOW

3”

14 TUBED

N/A

4”

14 TUBED

N/A

5”

14 TUBED

N/A

6”

14 TUBED

N/A

7”

8”

9”

10”

11”

12”

13”

14”

15”

16”

17”

18”

19”

20”

21”

22”

23”

24”

26”

28”

30”

32”

34”

36”

38”

40”

ZZZGXFWLQJV\VWHPVFRP

2”
7.32”

4”
1.32”

3210-0490-104000
1.32”

2”

6”

9.32”

1.32”

3210-0490-106000
1.32”

2”

10”

13.32”

1.32”

3210-0490-110000

BRANCH STYLES

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BRANCH STYLES

5”

30 DEG

A=6, B=4, C=5
@ 30 Deg Standard
Part #: 3220-06xx. When
Ordering, Provide Part #
and Description.
Examples:
3220-06 6-4-5
or Branch 6-4-5

B
4”

5”

6”

A=6, B=4, C=5
@ 45 Deg Custom
Part #: 3220-06xx. When
Ordering, Provide Part #
and Description.
Examples:
3220-06 6-4-5 @ 45 Deg
or Branch 6-4-5 @ 45 Deg

45 DEG
B
4”

5”

30 DEG
4”

30 DEG

6”

4” C

45 DEG

D
3”

7”

A=7, B=5, C=4, D=3
@ 45 Deg Custom
Part #: 3226-07xx. When
Ordering, Provide Part #
and Description.
Examples:
3226-07 7-5-4-3 @ 45 Deg or
Double Branch 7-5-4-3 @ 45 Deg

6”
B

60 DEG
4”

45 DEG

7”

A=7, B=5, C=4, D=3
@ 30 Deg Standard
Part #: 3226-07xx. When
Ordering, Provide Part #
and Description.
Examples:
3226-07 7-5-4-3
or Double Branch 7-5-4-3

3”

6”

B
A

90 DEG

8”

D
4”

A=8, B=6, D=4
@ 60 Deg Standard
Part #: 3221-08xx. When
Ordering, Provide Part #
and Description.
Examples:
3221-08 8-6-4
or Y- Branch 8-6-4

4”
90 DEG

6”

A=8, B=6, D=4
@ 90 Deg Custom
Part #: 3221-08xx. When
Ordering, Provide Part #
and Description.
Examples:
3221-08 8-6-4 @ 90 Deg
or Y- Branch 8-6-4 @ 90 Deg

A=6, B=4
@ 90 Deg Standard
Part #: 3227-0604. When
Ordering, Provide Part #
and Description.
Examples:
3227-0604
or T- Branch 6-4

ZZZGXFWLQJV\VWHPVFRP

SIZING BRANCHES

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THE WORLD’S FASTEST DUCTING

SIZING BRANCHES

5” x 90 Deg Elbow
____” (____CFM)

Branch Typ. @ 30 Deg
6” x 60 Deg Elbow
6” Dia @ 885 CFM
5” Dia @ 615 CFM

EXAMPLE: Always work from your machines back toward the ﬁlter. Suppose that you have
a 5” drop that rises and runs back to join with a 6” drop as sketched above. What size
branch will you need?

8” dia (1500 CFM)
From Air Volume
Chart

5” x 90 Deg Elbow

Branch Typ. @ 30 Deg
6” x 60 Deg Elbow
6” Dia @ 885 CFM
5” Dia @ 615 CFM

The 5” pipe carries 615 CFM at 4500 FPM, (See Chart). The 6” pipe will need 885 CFM at
the same velocity (See Chart). Added together you have a total of (615 + 885) 1500 CFM
coming together. Looking again at the chart under 4500 FPM, you ﬁnd that 1500 CFM is not
listed, but falls very close to the 1570 CFM listed for an 8” pipe. This indicates that the 5”
joined to the 6” will require an 8” pipe to carry all of the material at the right velocity.
The branch, therefore, will be 8” on the downstream end reducing down to a 5” with a 6”
branching off of it. That is listed as a 8-6-5 branch.

ZZZGXFWLQJV\VWHPVFRP

TRANSITION STYLES

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THE WORLD’S FASTEST DUCTING

TRANSITION STYLES

1- ½” FLANGE

“D”

“Y”

“B”

“Y”

“A”

“B”

“L”

“L”
“X”

“X”

STYLE #1

STYLE #2

Built to your speciﬁcations. Please list all required dimensions and details.
Specify Rectangle End:

Angle Flange

Flat Flange

Raw End I.D.

Flange Type:

Angle Flange

Flat Flange

Sheet Metal

Specify Round End:

Angle Flange

Flat Flange

Raw End O.D.
Hose Conn.

Raw I.D. Or O.D.
NOTE:

If no hole pattern is supplied for ﬂanges, they will be supplied “Blank” to be ﬁeld drilled.
“L” = to the greater of B or D

Item
#

Qty.

“D”

“A”

“B”

“X”
“Y”
Std 2” Std 2”

NOTE: Minimum L for Sq to Rd is B x 0.75
“L”

Gauge

ZZZGXFWLQJV\VWHPVFRP

Flange
Material

Flg
Dwg

Special Notes

REDUCER STYLES

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REDUCER STYLES

“L”

“Y”

“L”

“A”

“L”

“A”

“X”

“B”

“Y”
“A”

“X”

“B”

“Q-F STYLE”
A)

“Y”

“FLANGED STYLE”

“RAW END STYLE”

Reducers are produced by the following formula:
“QF” LENGTH = (A-B) + 6” [7” MIN]
“FL” LENGTH = (A-B) + 8” [9” MIN]

Standard material gauges as follows: (Heavier gauges available contact NORDFAB)
DIA.

NOTE:

Item#

GALV. GAUGE

SS GAUGE

4” - 12”

14” - 22”

Any combination of the above style are available upon request. Please specify all the
required dimensions and all reducer end conﬁgurations (Raw ID, Raw OD Style, QF Style,
Flange Style, Etc.).

Qty

“A”

Style

“Q-F”
“Flange”
“Raw”

“B”

Style

“Q-F”
“Flange”
“Raw”

“L”

(A-B+6)

“X”

STD-2”

“Y”

STD-2”

Part
Gauge

ZZZGXFWLQJV\VWHPVFRP

Flange
Material

Flg
Dwg

Special Notes

Flex hose STYLES

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THE WORLD’S FASTEST DUCTING
fit
d ed to be.
n
d
u
tE
tle pan x t
Ou is ex he fle
nd of t
e e side
n
o
t
ou
TE:
NO r the
e
ov

FLEx HOSE STYLES
Length=End of Fitting to End of Fitting

Flat Flange (FFL)
Angle Flange (AF)

NOTE: When ordering Flex Pipe
with no fittings (NF) order in 5’-0”
increments. (5’0”, 10’0”, 15’0”, etc.)

Quick Fit (QF) end
For raw end denote
RawID (RID)
RawOD (ROD)

w
Flo
Air

For no fitting (NF) tack welded
Flex Hose Select
Rigid
Ultra Flex (UF)

d
ne
d
En desig ube.
t
e
t
Inl d is flex
n
e e the
on e of
:
E
T
id
NO fit ins
to

For no fitting (NF) tack welded
For raw end denote
RawID (RID)
RawOD (ROD)
Quick Fit (QF) end

Angle Flange (AF)
Flat Flange (FFL)

NOTES:
1. If no hole pattern is supplied for ﬂanges, you will receive blank ﬂanges (ﬂanges without holes).
2. Any combination of the above style are available upon request. Please specify the inlet diameter, ﬂex hose
diameter, and outlet diameter.
3. Note the length is based on the ﬂex hose being stretched out before cutting (not compressed).
4. Special Notes: SP=Spot Weld (Std), ST=Stitch Weld, SO=Solid Weld, BY=Buff Yes, BN=Buff No (Std),
note other requirements.
5. Rigid and Ultra Flex hose is produced in 5’ lengths in diameters 7” and above.
Item
#

Inlet
Dia.

Inlet End Style
(QF, NF, AF, FFL,
RID, ROD)

Flex
Dia.

Flex
Hose
(RF, UF)

Outlet
Dia.

Outlet
End Style

Length
(in.)

ZZZGXFWLQJV\VWHPVFRP

Material
(G, SS)

Drawing
(Y/N)

Special Notes

RUBBER FLEXIBLE HOSE

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THE WORLD’S FASTEST DUCTING

RUBBER FLExIBLE HOSE
• Wide Temperature Range
• Versatility
• Better UV, Moisture and Weathering Resistance
• Will Not Set to The Shape of the Box When Packed

T-7

•

• No Cement
• Air Tight

Medium weight thermoplastic rubber hose reinforced with a spring steel wire helix
Good abrasion resistance
Designed for applications with wide temperature
ranges
Great moisture & UV resistance
Excellent chemical resistance
Smooth interior assures minimal friction loss &
efﬁcient air ﬂow
Wall Thickness = .030”
Available in metric sizes, consult sales team on
pricing & minimums

•
•
Size Range (in) ..............................stock 2” to 24”
Standard Length (ft).................................. 25’, 50’
Standard Colors........................................... black
Temp Range (˚F) ............................... -60˚ to 275˚

• Superior Chemical Resistance
• Better Abrasion Resistance
• Outstanding Flex Resistance
• Better Looking Product

•
•
•
•
•

R-4
•

Size Range (in) ..............................stock 2” to 24”
Standard Length (ft)........................... 10’, 25’, 50’
Standard Colors............................................clear
Temp Range (˚F) ................................ 20˚ to 160˚

FLx-THANE® MD

Size Range (in) ..............................stock 2” to 24”
Standard Length (ft).................................. 25’, 50’
Standard Colors................................. black, clear
Temp Range (˚F) ............................... -60˚ to 225˚

Medium weight PVC hose reinforced with a spring
steel wire helix
Good for positive pressure applications
Great compressibility
Construction allows for value packaging by reducing the box size, reducing warehouse space &
shipping costs
Ideal for dust and woodworking applications
Good chemical & moisture resistance
Manufactured with FDA acceptable materials
Wall Thickness = .028”

•
•
•
•
•
•
•

•
•
•
•
•
•
•
•
•
•

Medium weight polyurethane hose reinforced
with a bronze coated spring steel wire helix
Good compressibility
Great abrasion resistance & high tear strength
Superior chemical resistance
Excellent ﬂexibility
Designed for applications with wide temperature
ranges
Very good low temperature ﬂexibility
Clear is manufactured with FDA acceptable
materials
Available in metric sizes, consult sales team on
pricing & minimums
Wall Thickness = .030”

ZZZGXFWLQJV\VWHPVFRP

RIGID & ULTRA FLEX METAL HOSE

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THE WORLD’S FASTEST DUCTING

RIGID METAL FLEx HOSE

Part # 3281-XX00
Inside Dia.
(Inches)

Appox.
Outside Dia.
(Inches)

Min. CLR
Bend Radius

Appox.
Weight Per
Foot (LBS)

Inside Dia.
(Inches)

Appox.
Outside Dia.
(Inches)

Min. CLR
Bend Radius

Appox.
Weight Per
Foot (LBS)

1 1/2

1 3/4

12.0

1.00

6 1/4

44.0

3.60

2 1/4

16.0

1.30

7 1/4

50.0

4.20

2 1/2

2 3/4

18.0

1.60

8 1/4

56.0

4.70

3 1/4

22.0

2.00

9 1/4

61.0

5.30

3 1/2

3 3/4

25.0

2.30

10 1/4

65.0

5.90

4 1/4

29.0

2.60

12 1/4

76.0

7.00

5 1/4

34.0

3.00

14 1/4

106.0

8.10

MEDIUM-HEAVY GALVANIZED OR STAINLESS

.017- .020 Strip Thickness

ULTRA FLEx METAL HOSE

Part # 3283-XX00
Inside Dia.
(Inches)

Min. CLR Bend
Radius

Appox. Weight
Per Foot (LBS)

Inside Dia.
(Inches)

Min. CLR Bend
Radius

Appox. Weight
Per Foot (LBS)

2.15

3.55

2.65

4.15

2.95

4.55

Manufactured in sizes ranging from 3” dia thru 8” dia of
stainless steel or galvanized. Some Applications would
include Air Handling, and Dust Collection.

Square Lock:
Speciﬁcation:

ID Tolerance: +1/4 “ , - 0
3”-6” manufactured out of .019 material
7”-8” manufactured out of .024 material

RIGID AND ULTRA FLEx STEEL HOSE CONFIGURATIONS
Steel Flex Hose With Raw Ends (Standard)

Steel Flex Hose With Q-F Ends (Custom)

Steel Flex Hose With Flange Ends (Custom)

Steel Flex Hose With Raw Pipe Ends (Custom)

NOTE: When ordering steel hose, you have the option of having the hose ﬁtted with several different
style end ﬁttings in any number of combinations. Raw hose is priced per foot, and sold only in 5 Ft.
increments on 7” and above. 6” and below can be sold in any length. Contact your sales rep for
pricing on speciﬁc lengths and end ﬁttings.
ZZZGXFWLQJV\VWHPVFRP

NFES BLAST GATE (AUTO)

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NFES AUTOMATIC BLAST GATE

Wiring Diagram
Open

Cylinder Shaft
Sd11

1/4” poly
ethylene
tubing

“D”
120V or 24V AC
White is neutral
Black is line voltage

Air output to base side of cylinder
Air output to rod side of cylinder

24V DC
White is negative (-)
Black is positive (+)

GREEN
WHITE
BLACK

14
Single Solenoid 3 prong
connection provided

Parker

EZ11NBB553A

145 PSIG (1000 kPa) max
Assembled in: USA

02/10

513
3

Speed control for closing motion
Air Input (80 PSI min to 145 PSI Max)
Speed control for openning motion

DESCRIPTION:

Automatic energy saving blast gates operated by double-acting compressed air cylinders. Cylinders are
controlled by electrically-connecting solenoid to machines or remote switch. Gates are constructed
with a special sealing device that reduces air loss and friction in operation.

APPLICATIONS:

Gates are used as energy-saving devices for industrial dust extraction where extraction is not always
needed on a constant basis or where manual control needs to be eliminated.

AVAILABILITY:
Material:
Sizes in inch:

GALVANIZED or STAINLESS STEEL
4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24, 26

One cylinder

Part numbers:
Standard Requirements:

Two cylinder

3245-XX00 (where XX is the diameter)
120 Volt power source and 80 psi minimum air pressure horizontally mounted.
240, 24 and 12 volt AC. 24 and 12 volt DC models also available upon request.

ZZZGXFWLQJV\VWHPVFRP

NFES BLAST GATE (AUTO)

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NFES AUTOMATIC BLAST GATE
Temperature Rating:
120°F
Solenoid (solenoid is on the outside of the housing and may handle higher duct temperatures
due to its location)
140°F
Poly tube (poly tube is on the outside of the housing and may handle higher duct temperatures
due to its location)
158°F
Gasket Spring (intermittent to 250°F)
165°F
Cylinder
194°F
3M #540 Polyurethane Sealant (collar adhesive)
200°F
UHMW Seal
250°F
Optional Oil Mist - 3M 2084 Scotch Seal Metal Sealant
375°F
Optional Epoxy Caulk - 3M DP460
500°F
Galvanized Parts: with little or no breakdown of zinc - zinc melting point is 740°F
1100°F 304SS: bluing may occur at temperatures of 800°F and above
Material Speciﬁcations:
Galvanized Body: Galvanized is ASTM A527 with a G-90 rating
304SS Body:
ﬁnish meets ASTM A240
314SS Body:
Finish meets ASTM A240
UHMW Seal:
Ultra High Molecular Weight
Gasket Spring:
Poron® Cellular Urethane material
Cylinders:
Crimped round body, 304 Stainless Steel tube only, Aluminum end caps, Non-repairable
Bore size is 1-1/16"
Ports are 1/8" NPT Standard
Piston rod diameter is 0.312"
Piston rod material: 304 Stainless steel only
Single acting end
Standard ﬂuid: Filtered air
Operating medium: Pneumatic, 250 PSI maximum (normal operating pressure is (80 PSI minimum)
Poly tube:
1/4" 0D x 0.040 wall poly tube, 120 PSI, Grade E5 LIP, Type 1
Solenoid:
0.8Cv ﬂow characteristics
1/8" NPT ports
Solenoid is constant pressure
Structural Integrity:
Automatic, energy saving blast gates are operated by double acting compressed air cylinders
Cylinders are controlled by electrically-connected solenoid to machines or remote switch
Standard hookup is 120 volt AC
Optional: 24 volt AC (Must be stated on PO)
Optional: 24 volt DC (Must be stated on PO)
Single cylinder gates: 3" up to 8" diameters
Double cylinder gates: 9" and up diameters (second cylinder depicted by phantom lines)

ZZZGXFWLQJV\VWHPVFRP

SD BLAST GATE (AUTO)

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SD AUTOMATIC BLAST GATE
Wiring Diagram
Dim "C"
Dim "F"
Ø
120V or 24V AC
White is neutral
Black is line voltage

Dim "E"

Air output to base side of cylinder

Dim "A"

Air output to rod side of cylinder

24V DC
White is negative (-)
Black is positive (+)

GREEN
WHITE
BLACK

Single Solenoid 3 prong
connection provided

Parker

EZ11NBB553A

145 PSIG (1000 kPa) max
Assembled in: USA

02/10

Dim "D"

Solenoid

513
3

Cover
removed for clarity
Category
Diameter
Material
Connection
Angle
taperDiameter
BranchDiameter
Branch2Diameter
Serial
Length

Speed control for closing motion
Air Input (80 PSI min to 145 PSI Max)
Speed control for openning motion

Dim "B"

Single Cylinder

Dim "C"

Dim "F"
Ø

Dim "A"
Dim "D"

Cover removed for clarity

Solenoid

120V or 24V AC
White is neutral
Black is line voltage

Category
Diameter
Material
Connection
Angle
taperDiameter
BranchDiameter
Branch2Diameter
Serial
Length

Air output to base side of cylinder
Air output to rod side of cylinder

24V DC
White is negative (-)
Black is positive (+)

GREEN
WHITE
BLACK

Parker

14
Single Solenoid 3 prong
connection provided

EZ11NBB553A

145 PSIG (1000 kPa) max
Assembled in: USA

Dim "B"

02/10

513
3

Speed control for closing motion
Air Input (80 PSI min to 145 PSI Max)
Speed control for openning motion

Double Cylinder

DESCRIPTION:

Automatic standard duty blast gates operated by double-acting compressed air cylinders. The SD
version is a less expensive alternative to the NFES gate due to omission of the seals. Cylinders are
controlled by electrically-connecting solenoid to machines or remote switch.

APPLICATIONS:

Gates are used as energy-saving devices for industrial dust extraction where extraction is not needed on a
constant basis and where manual control needs to be eliminated.

AVAILABILITY:
Material:
Sizes in inch:

GALVANIZED
4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24

One cylinder

Part numbers:
Standard Requirements:

Two cylinder

3242-XX00 (where XX is the diameter)
120 Volt power source and 80 psi minimum air pressure horizontally mounted.
240, 24 and 12 volt AC. 24 and 12 volt DC models also available upon request.

ZZZGXFWLQJV\VWHPVFRP

SD BLAST GATE (AUTO)

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SD AUTOMATIC BLAST GATE
Temperature Rating:
120°F
Solenoid (solenoid is on the outside of the housing and may handle higher duct temperatures
due to its location)
140°F
Poly tube (poly tube is on the outside of the housing and may handle higher duct temperatures
due to its location)
165°F
Cylinder
194°F
3M #540 Polyurethane Sealant (collar adhesive)
250°F
Optional Oil Mist - 3M 2084 Scotch Seal Metal Sealant
375°F
Optional Epoxy Caulk - 3M DP460
500°F
Galvanized Parts: 18ga or thicker - cannot be changed
1100°F 304SS: 18ga or thicker - cannot be changed - bluing may occur at temperatures of
800°F and above
Material Speciﬁcations:
Galvanized Body: Galvanized is ASTM A527 with a G-90 rating
304SS Body:
Stainless is 304 with a ﬁnish meeting ASTM A240 - Keeps alum cast housing & replaces galv'd
parts with 304SS
314SS Body:
Stainless is 316 with a ﬁnish meeting ASTM A240 - Keeps alum cast housing & replaces galv'd
parts with 316SS
Gasket Spring: Poron® Cellular Urethane material
Cylinders:
Crimped round body, 304 Stainless Steel tube only, Aluminum end caps, Non-repairable
Bore size is 1-1/16"
Ports are 1/8" NPT Standard
Piston rod diameter is 0.312"
Piston rod material: 304 Stainless steel only
Single acting end
Standard ﬂuid: Filtered air
Operating medium: Pneumatic, 250 PSI maximum (normal operating pressure is (80 PSI minimum)
Poly tube:
1/4" 0D x 0.040 wall poly tube, 120 PSI, Grade E5 LIP, Type 1
Solenoid:
0.8Cv ﬂow characteristics
1/8" NPT ports
Solenoid is constant pressure
Structural Integrity:
Automatic, energy saving blast gates are operated by double acting compressed air cylinders.
Cylinders are controlled by electrically-connected solenoid to machines or remote switch.
Standard hookup is 120 volt AC
Optional: 24 volt AC (Must be stated on PO)
Optional: 24 volt DC (Must be stated on PO)
Single cylinder gates: 3" up to 8" diameters
Double cylinder gates: 9" and up diameters (second cylinder depicted by phantom lines)

ZZZGXFWLQJV\VWHPVFRP

DIVERTER VALVE

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DIVERTER VALVE
Automatic

“D”

Sd25

45° only
“A”
Tubing

Shaft w/
Bearing
“L”

Open
“B”

This length is 6” on Ø 16”
This length is 5” on Ø 22”

Solenoid

Provided

115 Volt

115 Volt AC

Bolted
Access
Plate

Term
Block

Blk
W
G
5

Blk
W
G

Opening Motion

Air Flow

18 Gauge

Closing Motion
75 psi
NOTE: 6.9va Coil

DESCRIPTION:
Highly efﬁcient, economical method of diverting ﬂow of material or air. Designed with Q-F or ﬂanged,
manual, or air operated.
APPLICATIONS:
Diverter valves are used for diverting material or air to one of two possible directions at a time.
AVAILABILITY:
Material:
BLACK METAL or STAINLESS STEEL 3/16” thick
Sizes in inch: 3, 4, 5, 6, 7, 8, 9, 10,11, 12, 13, 14, 15, 16, 17 ,18, 20, 22, 24
Larger sizes available upon request.
Please NOTE: 45 lateral angle only
Part numbers: 3235-XX00 for manual (where XX is the diameter)
3236-XX00 for automatic, PLUS read “Special”.
Standard Requirements:
120 Volt power source and 75 psi minimum air pressure.
240, 24 and 12 volt AC as well as 24 and 12 volt DC models are
available upon request.

ZZZGXFWLQJV\VWHPVFRP

SD DIVERTER VALVE

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THE WORLD’S FASTEST DUCTING

SD DIVERTER VALVE
Close

Sd25
6.00”

Tubing

6.00”

28.00”

Open
Solenoid

Provided

115 Volt

115 Volt AC
4

Term
Block

Blk
W
G
5

6.00”

Blk
W
G

Opening Motion
7.72”

18 Gauge

Closing Motion

7.57”

75 psi

Air Flow
NOTE: 6.9va Coil

DESCRIPTION:
Highly efﬁcient, economical method of diverting ﬂow of material or air. Designed with Q-F or ﬂanged,
manual, or air operated. Lighter weight than our heavy duty diverter valve.
APPLICATIONS:
Diverter valves are used for diverting material or air to one of two possible directions at a time.
AVAILABILITY:
Material:
GALVANIZED or STAINLESS STEEL, 14ga construction
Sizes in inch: 3, 4, 5, 6, 7, 8, 9, 10,11, 12, 13
Larger sizes available upon request.
Please NOTE: 45 lateral angle only
Part numbers: 3233-XX00 for manual (where XX is the diameter)
3234-XX00 for automatic, PLUS read “Special”.
Standard Requirements:
120 Volt power source and 75 psi minimum air pressure.
240, 24 and 12 volt AC as well as 24 and 12 volt DC models are
available upon request.

ZZZGXFWLQJV\VWHPVFRP

fume arms

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THE WORLD’S FASTEST DUCTING
Nordfab standard extraction arm is
specially designed for working
environments with fumes, vapors or
non-explosive dust, where the demands for
higher airﬂows and temperatures are
moderate. Typical workplaces can be
welding schools and different types of
applications in light production. The
applications can be welding, grinding, or
other industrial processes where an
easily positioned arm is required. The arm
is available in two lengths, 2 and 3 m, and
equipped with a high efﬁciency extraction hood.

• The arm is flexible in all directions and
simple to position
• Designed for wall mounting with
integrated wall bracket/90° bend
• Can be rotated 180°
• Can be equipped with a damper placed
in the bend as an accessory
• The hood can be tilted in all directions
3.7in
Ø 6 in.
5.7 in.

8 in.

63 in - 91.5 in.

Ø .5in (x4)

Description

Working
range, ft

Airflow,
CFM

Standard arm, 6.5 ft

6.5

353-530

158

Standard arm, 10 ft

353-530

158

Connection Ø, in Max. fume temperature, °F Noise level at hood, dB(A)

It is specially designed for working
environments with fumes, vapors
or non-explosive dust. Typical
workplaces are the metal fabrication
industry or other types of industries
where extraction is needed. The
applications can be welding, grinding,
or other industrial processes where
an easily positioned arm is required.
The product is equipped with a
damper in the hood as standard.

• A swivel allows the product to rotate 360°.
• The arm is flexible in all directions and
simple to position.
• The product is equipped with a damper in
the hood as standard.
• The hood on all models can be tilted in
all directions.

9in.

12in
Ø 6in. QF

7.8in.

Extraction arm Original

Weight,
lbs

~94in.

Ø .35in. (x4)

Working
range, ft

Airflow, CFM

Connection Ø, in

Max. fume
temperature, °F

Noise level at hood,
dB(A)

Weight,
lbs

Original arm 6.5 ft

6.5

412-589

158

63-75

Original arm 10 ft

412-589

158

63-75

Original arm 13 ft, vertical

412-589

158

63-75

Original arm 13 ft, horizontal

412-589

158

63-75

Description

ZZZGXFWLQJV\VWHPVFRP

Jet cap
no loss stackhead

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THE WORLD’S FASTEST DUCTING

JET CAP

PART NO.

ENDS

6”
8”
10”
12”
13”
14”
15”
16”
17”
18”
20”
22”
24”
26”
28”
30”
32”
34”
36”
38”
40”

3258-0600
3258-0800
3258-1000
3258-1200
3258-1300
3258-1400
3258-1500
3258-1600
3258-1700
3258-1800
3258-2000
3258-2200
3258-2400
3258-2600
3258-2800
3258-3000
3258-3200
3258-3400
3258-3600
3258-3800
3258-4000

QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
FLANGE
FLANGE
FLANGE
FLANGE
FLANGE
FLANGE
FLANGE
FLANGE

W
H
(inches) (inches)
10.12
14.40
13.25
18.40
16.50
22.40
20.00
27.00
21.50
30.00
23.12
32.80
24.50
34.00
26.50
36.40
27.70
38.00
29.50
40.00
32.50
44.40
35.40
47.50
38.60
51.50
42.20
55.00
45.20
59.00
48.20
63.00
51.20
67.00
54.60
71.00
58.20
74.70
61.20
79.00
64.20
83.00

• Prevents rain from entering duct work
• Inner funnel piece allows rain to drain out of ductwork even when
system is not running
• Has three angle brackets for guide wire attachment
• Installs In Seconds with Standard Q-F Clamp

Angle Flange used for
securing with guyed wires

NO-LOSS STACKHEAD
50
4D

D+1”

STACKHEAD

8
6

QF Connection

6”

4
2
100

D
Bracket upper
stack to
discharge duct

4 x D +6 = L

0
D

D +1

PREFERRED
Air proceeds upward

Angle Flange
for Guying

VERTICAL DISCHARGE
NO LOSS

Bracket Upper
Stack To Short
QF Duct Section

Recommended Industrial Ventilation Guidelines
ZZZGXFWLQJV\VWHPVFRP

explosion isolation flap

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THE WORLD’S FASTEST DUCTING

Explosion Isolation Flap
The Standards

Various NFPA standards require that a dust collection system
has a means of preventing the
transmission of energy from a ﬁre
or explosion to the building/work
area. Through extensive testing by
a third party testing facility, Nordfab
has developed the Explosion
Isolation Flap (EIF) type CARZ to
be installed upstream of the dust
collector.

Without EIF

How it works

Under normal operation the ﬂap will open as the downstream air
moving device generates a ﬂow in the ductwork. Should an explosion
happen in the downstream equipment - like a dust collector - a
pressure front develops in the ductwork within milliseconds and due to
the design of the EIF, the internal ﬂap will be forced closed and seal off
the approaching ﬂame front. This prevents glowing embers and
burning material from
entering into upstream equipment
and spaces.

The Design

The design of the EIF is critical as the ﬂap must function in milliseconds and therefore must be of light construction but must be strong
enough to withstand the explosion pressure.

With EIF

d
e
s
lea

Many full scale tests were performed to arrive at the proper design and
assure proper function.

The Tests

e
r
e
ob

t
n
sig

Since the EIF is a safety device, Nordfab submitted the EIF to rigorous
testing by an accredited testing facility in accordance with 94/9/EC Directive.

e
d
ew

Label: ATS.096 CARZ (0120-0500)
Label: ATS.098 CARZ (0560-01000)

CE1180

2
Q
in

ATEX

Compliant

D St1

The marking is based on product certiﬁcation by N.B. 1026.
The certiﬁcates allow max Pred 0.5 bar pressure resistance for sizes dia 22” (560mm) and smaller. Sizes 630mm-1000mm: 0.30 bar

Normal Operation

Explosion/deﬂagration

ZZZGXFWLQJV\VWHPVFRP

explosion isolation flap

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THE WORLD’S FASTEST DUCTING

Application:
Material Types: Dry Dusts (not designed for combustible
gas and vapors and hybrid mixtures of these substances.)

Design conditions for ductwork and Air Material Separator
(Dust Collector)
EIF Designed for Max. Reduced Pressure Pred
Size

Kst Value of Dust < 200 Bar-M / Sec
NOT SUITABLE for greater than ST1 dust.

Pred

CARZ 6”-22”
CARZ 24”-40” AF

d
e
s
lea

Transport Medium: Standard Air

Air Velocity In the Device: > than the minimum transport velocity of the conveyed dust.

Installation:

t
n
sig

e
d
ew
2

e
r
e
ob
1 Fan

2
Q
in
0.5 bar
0.3 bar

2 Vessel (ﬁlter, container, silo, ect.)
3 CARZ Explosion Isolation Flap
4 Normal process ﬂow

L1 Installation distance from vessel, where
explosion could occur

Min. Distance Between EIF and AMS
Size
CARZ 6”-20”
CARZ 24” - 40” AF

Min A
7’
16’

Max A
16’
28’

KST veriﬁcation form required / Lead time is 25 working days after receipt.

Dimensions:
Actual diameter

Length (L)

Body (B)

Weight (lbs)

6”

19 1/4”

16 7/8”

20 1/8“

17 5/8“

21”

18 7/16”

10"

23”

20 7/16”

12"

25 1/2”

23”

14"

27”

24 3/8”

16"

29”

26 3/8”

18"

31”

28 3/8”

20”

33”

30 1/4”

108

22”

42 1/4“

32“

176

24” AF

44 7/16”

34 3/4”

229

28” AF

48”

38”

267

32” AF

51 5/8”

41 1/2”

309

36” AF

55 1/2”

45 3/8”

353

40” AF

59 1/2”

49 3/8”

397

Above dimension chart is for general information. Please consult
factory for dimensions based on the connection options

Inspection door 22” and larger

ZZZGXFWLQJV\VWHPVFRP

INSTALLING A TAP-IN OR CUT-IN

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THE WORLD’S FASTEST DUCTING

INSTALLING TAP-IN OR CUT-IN

STEP 1:
Temporarily place the in-cut on the main trunk in the required position, and while holding in place,
place hand inside of branch and trace the interior of the branch on trunk line where it needs to be cut out.
STEP 2:
Take down in-cut and drill a starter hole in the main trunk along the line traced from the branch. Then
using metal snips or a reciprocating saw, cut out metal piece that has been traced. File or grind any
sharp edges to insure efﬁcient ﬂow.
STEP 3:
Now use an industrial strength silicone sealant to seal between in-cut base and main trunk.
STEP 4:
Use small sheet metal screws or a banding type clamp material to secure in-cut to the main trunk line.
/2”
5 1 IN
M

4”
NOTE: Gauge based on “A”
A = Pipe Diameter

A = Pipe Diameter

Saddle length + width = 3”
all directions from Branch
Tube (B).

Saddle length + width = 2”
all directions from Branch
Tube (B).

INLINE SILENCER
Length

Reference Angle
Flange hole pattern

(Length - Tan - Tan) = Ref

TAN

Absorbent Material: 3-1/2" thick stranded Fiberglass

FLG
Ref

"OD"

"A"
Air Flow

Perforated Tube

Air Flow

Absorbent Material: 3-1/2" thick stranded Fiberglass

1.
2.
3.
4.
5.

Silencer to be placed in process line down stream of fan or cyclone collector.
Silencer housing constructed of 18-20 gauge galvanized metal.
Silencer should be properly supported in process line.
NORDFAB reserves the right to modify the design of the silencer without notice.
Efﬁciencies of Silencer have not been tested, nor are there any guarantees of sound level attenuation.

ZZZGXFWLQJV\VWHPVFRP

INLINE SILENCER

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THE WORLD’S FASTEST DUCTING

INLINE SILENCER (cont.)
“A”

“OD”

PART NO.

ENDS

LENGTH
(C)

GAUGE
HOUSING

WEIGHT
(GALV)

3”
4”
5”
6”
7”
8”
9”
10”
12”
14”
16”
18”
20”
22”
24”
26”
28”
30”
32”
34”
36”
38”
40”

12”
12”
13”
14”
15”
16”
17”
18”
20”
22”
24”
26”
28”
30”
32”
34”
36”
38”
40”
42”
44”
46”
48”

3106-0300
3106-0400
3106-0500
3106-0600
3106-0700
3106-0800
3106-0900
3106-1000
3106-1200
3106-1400
3106-1600
3106-1800
3106-2000
3106-2200
3106-2400
3106-2600
3106-2800
3106-3000
3106-3200
3106-3400
3106-3600
3106-3800
3106-4000

QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
FLANGE
FLANGE
FLANGE
FLANGE
FLANGE
FLANGE
FLANGE
FLANGE

28”
28”
28”
30”
30”
35”
40”
48”
54”
60”
64”
68”
72”
76”
80”
80”
80”
80”
80”
80”
80”
80”
80”

20
20
20
20
20
20
20
20
20
20
20
20
20
18
18
18
18
18
18
18
18
18
18

10.00
21.00
35.00
43.00
54.00
65.00
76.00
89.00
104.00
122.00
176.00
225.00
265.00
310.00
406.00
546.00
600.00
678.00
700.00
770.00
897.00
974.00

Material Speciﬁcations:
Galvanized:
Perforated Tube:
304SS:
316SS:

1,118.00

ASTM A527 with a G-90 rating
ASTM A653
Finish meets ASTM A240
Finish meets ASTM A240

Absorbent Material:
3-1/2" thick ﬁberglass stranded bats
Structural Integrity:
Outer Tube:

Longitudinal seam is laser welded to 15" diameter pipe and lock formed 16" and greater

Air ﬂow directional:
Yes - arrows are painted on product for installation.
Special Notes:
Standard QF end can be changed to RawID, RawOD, No Fitting, Hose Adapter, Flat Flange, and Angle Flange.

ZZZGXFWLQJV\VWHPVFRP

Sliding Access Panel
mist recycler

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THE WORLD’S FASTEST DUCTING

SLIDING ACCESS PANEL
The 7” dimension of the
opening is measured around
the pipe as shown. Because of this
panels are not available under 6”.

Partially Open

14.000

7.000

ø6.000

Closed position

6.000
R0.500

Fully Open

Pipe Length/Slide Length

Access Hole

Part Number

6”-8”

59.25 inches/18 Inches

7” x 14”

3103-XX00-100000

9”-24”

58.75 inches/18 Inches

7” x 14”

3103-XX00-100000

The SAP consists of a standard length of QF pipe with an access opening laser cut into it, a pre-mounted 18inch sleeve with two clamps and two rubber o-rings that covers and allows access.

MIST RECYCLER
Ø

PART NO.

GAUGE

(A)
INCH

(B)
INCH

BAFFLE
SIZE

WEIGHT
(GALV)

3”

3192-0300

14.00

18.00

10” x 14”

11.10

4”

3192-0400

14.00

18.00

10” x 14”

11.25

5”

3192-0500

14.00

18.00

10” x 14”

11.45

6”

3192-0600

14.00

18.00

10” x 14”

11.60

7”

3192-0700

20.00

24.00

16” x 20”

22.70

8”

3192-0800

20.00

24.00

16” x 20”

22.85

9”

3192-0900

20.00

24.00

16” x 20”

23.10

10”

3192-1000

20.00

24.00

16” x 20”

23.30

11”

3192-1100

20.00

28.00

20” x 20”

32.65

12”

3192-1200

20.00

28.00

20” x 20”

32.85

A
Ø

DESCRIPTION:
The Nordfab Mist Recycler (MR) can extend ﬁlter media life, reduce maintenance costs and decrease
issues caused by excessive ﬂuids in the system..
APPLICATIONS:
Mist recyclers are used to extract mist particles from the air to be recycled back to the machine. The bafﬂe acts
as a system preﬁlter and mechanically extracts droplets and mist from the airstream. Liquid collected in the MR
drains into a sump and is returned to the machine via a drain port.
AVAILABILITY:
Material:
GALVANIZED OR SS304
ZZZGXFWLQJV\VWHPVFRP

GRIPPLE HANGER SYSTEM

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THE WORLD’S FASTEST DUCTING

GRIPPLE HANG-FAST
Gripple Hang-Fast is a complete solution for hanging mechanical and electrical services. It comes as a
ready-to-use suspension kit, with load ratings from 22lbs to 715lbs. The comprehensive range ensures
that installation times are minimized and high productivity is achieved on site.
The principal element of all Gripple Hang-Fast assemblies is the Gripple Hang-Fast Grip, which is not
only used to terminate the rope but is also the means by which object height can be adjusted.
Gripple Hang-Fast
Sizes & Working Load Limits ...
ITEM #

LENGTH

WEIGHT

AVAILABILITY

3266-1500-022LBS

15’

22 LBS

IN STOCK

3266-1500-100LBS

15’

100 LBS

IN STOCK

3266-1500-200LBS

15’

200 LBS

IN STOCK

3266-1500-495LBS

15’

495 LBS

IN STOCK

3266-1500-715LBS

15’

715 LBS

IN STOCK

Wire Rope Entry
The wire rope is pushed into
the Gripple in the direction
of the white arrows

Stainless Springs
The springs, one in each channel,
are manufactured in type 302
S26 Stainless steel

Zinc Housing
By using zinc, the product is
able to combine major
anti-corrosion properties
with strength and consistent
manufacturing quality.

Setting Key
Entry Hole
Anchor Point
As the wire rope passes
through one channel, it is
wrapped around a suitable
anchor point before being
pushed through the second
channel.

End-Cap
The plastic end-cap, which is
made from a UV stabilized
homopolymer polypropylene
simply holds the spring in place.

Setting Key
Entry hole
Serrated Teeth
Each wedge makes
contact with the rope
using serrated teeth.
These bite onto the
wire rope and spread
the load across the
length of the wedge
maximizing grip while
maintaining wire rope
strength.
Locking Wedges
Oil impregnated steel locking
wedges, one in each channel,
allow entry of the rope in one
direction as the spring is
compressed, but creates
a vice-like grip as the load
is applied in the opposite direction.

ZZZGXFWLQJV\VWHPVFRP

WALL MOUNTING BRACE

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THE WORLD’S FASTEST DUCTING

TYPICAL WALL MOUNTING BRACE

“D1” Hanger Size

“A”

“D” Pipe Size

Weld

1.5” x 3/16”
Flat Bar

Weld

4”
“C”

Typ. Material 1- 1/2”x 3/16”
Angle Bar

“E”

“B”

1/2” Dia Hole Typ. 3-Places
“E”

4”
Weld

QTY

“A”

“B”

“C”

“D1”

ZZZGXFWLQJV\VWHPVFRP

“D”

“E”

TYPICAL CEILING HANGING METHOD

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THE WORLD’S FASTEST DUCTING

TYPICAL CEILING HANGING METHOD

(Check local building codes, Nordfab is not responsible for building code violations)
Gripple hangers are also a typical ceiling hanging method.

Beam Clamp
½” Conduit

Nut

Beam Clamp

3/8 - 16 Threaded Rod
Pipe Hanger
Nut(2x)
HJ Pipe Hanger

½”Conduit
Beam Clamp
½”Conduit

Beam Clamp

Pipe Hanger

NOTE: Refer to your local codes when choosing how to support QF ducting.

ZZZGXFWLQJV\VWHPVFRP

DRY SYSTEM INSTALLATION

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THE WORLD’S FASTEST DUCTING

TYPICAL DRY SYSTEM INSTALLATION
TYPICAL DROP FOR DRY SYSTEMS

PLAN VIEW

90 Deg Elbow
Pipe from Branch
Adjustable Nipple

Nipple Fits Over Cut Pipe.
Place O-Ring On Pipe
And Clamp Nipples Rolled
End to Black O-Ring.

Cut End of Pipe
Place in the
Direction of Airﬂow

4” 60 Deg Elbow Completes 90
Deg Turn To Machine Drop

Cut Pipe and
Adjustable Nipple

Blast Gate (Manual Damper)
Clamp the Hose Adapter
To Pipe, Slide Flexhose
Over Hose Adapter and
Clamp with Hose
(Wormgear) Clamp

5” Dia Pipe

Standard Branches
Come Off At a 30
Deg Angle.

Hose Adapter
5.5” in Length

6-4-5 Standard Branch
A=6, B=4, C=5
A

Hose Clamp
(Wormgear Clamp)

Flex Hose
to Machine

4” 90 Deg Elbow Down
To Machine Connection
6” Dia Pipe

HARD DUCT TO MACHINE

ELEVATION VIEW
B

6-4 -5 Branch
Cut Pipe and
Adjustable Nipple

Pipe

4” 60 Deg Elbow
Band Saw

90 Deg. Elbow
Machine Adapter
(Q-F to Raw)

FLEX HOSE TO MACHINE
4” Blast Gate
(Manual Damper)
4” Hose Adapter
Pipe

4” Hose Clamp
(Wormgear Clamp)
4” Flex Hose

Band Saw
Hose Adapter
(For Rubber Hose Only)
Steel or Rubber
Flex Duct To Machine

ZZZGXFWLQJV\VWHPVFRP

WET SYSTEM INSTALLATION

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THE WORLD’S FASTEST DUCTING

TYPICAL WET SYSTEM INSTALLATION
TYPICAL DROP FOR WET SYSTEMS
90 Deg. Elbow
Epoxy Caulked
Pipe From
Branch
Adjustable
Nipple

Nipple Fits Over Cut Pipe.
Place O-Ring on Pipe and
Clamp Nipples Rolled End
To Oil Mist O-Ring.

**Cut End of Pipe. Place
With the Direction of
Airﬂow. see pg 41
Clamp the Hose Adapter
to Pipe. Slide Flexhose
Over Hose Adapter and
Clamp with Hose Clamp
(Wormgear Clamp)

PLAN VIEW
4” 60 Deg. Epoxy Completes
90 Deg. Turn to Machine Drop.
Epoxy Caulked
5” Dia. Pipe

Cut Pipe and
Adjustable Nipple

Hose Adapter
5.5” in Length
Hose Clamp
(Wormgear Clamp)

Flex Hose
to Machine
4” 90 Deg. Elbow Down
to Machine Connection

Standard Branches
Come Off at a
30 Deg. Angle.

6-4-5
Branch.
A=6, B=4, C=5
Epoxy Caulked

ELEVATION VIEW
4” 90 Deg.Elbow
Fully Welded

6” Dia.
Pipe

6-4-5 Branch
Epoxy Caulked

Cut Pipe and
Adjustable Nipple
with Oil Mist O-ring 4” 60 Deg.Elbow
Epoxy Caulked

NOTE:
**Use Q-F clamps
& Leak-Free gasketing

HARD DUCT TO MACHINE

4” Hose
Adapter

Pipe

4” Hose Clamp
(Wormgear Clamp)
4” Flexhose
NOTE:
Blast gates are not commonly used for
wet systems. Use butterﬂy valves for ﬂow control.
***Use Q-F clamps & Leak-Free gasketing

Band Saw

90 Deg.
Elbow
Machine Adapter
(Q-F to Raw)

ZZZGXFWLQJV\VWHPVFRP

FLASHING (WALL, ROOF)

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THE WORLD’S FASTEST DUCTING

WALL FLASHING
Outside Dia. + 8”

Wall

Inside Dia.

Can be ordered
with or without
collar.

--------

Outside Flashing

Made in Two Halves

Inside Flashing

DESCRIPTION:

AVAILABILITY:

Provides weather protection for Wall
penetration. Ordering one ﬂashing
provides you with both 1 inside and
1 outside ﬂashing (4 halves).

Material:
Sizes in inch:

GALVANIZED or STAINLESS STEEL
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40

ROOF FLASHING & SKIRT

(SOLD SEPARATELY)

Elevation View

3/4” (LIP)

DIA. Pipe
See Chart

SKIRTS
Counter Flashing Attached
To Duct-work
12”

4 1/8”
3” Overlap

Roof Flashing

Top View

6”

3-1/4” Dia. Holes
In Each PC.
Roof Flashing Attached
To Roof

Roof

Line

Roof Flashing Made
In 2 Halves, Caulked
And Riveted.

Roof Skirt

DESCRIPTION:

O.D.

AVAILABILITY:

Provides weather protection for roof
penetration.

Material:
Sizes in inch:

GALVANIZED or STAINLESS STEEL
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40

NOTE: Please specify Wall or Roof Flashing
Quantity

Dia. Of Pipe

ZZZGXFWLQJV\VWHPVFRP

# of Sets

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ADJUSTABLE NIPPLE ASSEMBLy
FOR DRY APPLICATION

THE WORLD’S FASTEST DUCTING

INSTRUCTIONS FOR USING THE “QF” ADJUSTABLE NIPPLE
WITH RUBBER O-RING FOR DRY SYSTEM
Each QF pipe section is 5 ft. in length. To accommodate an existing span, an adjustable nipple is used to shorten.

STEP 1

Measure distance to be spanned.

STEP 3

Use O-ring provided and mark for cut.

STEP 5

Cut piece of pipe put O-ring on
cut pipe, slide nipple over

STEP 2

Mark distance to be spanned less 4”.

STEP 4

Drill access hole then cut with saw

STEP 6

Snap clamp over O-ring and one
end of nipple.

FINISHED CONNECTION
USING THE ADJUSTABLE
NIPPLE ASSEMBLY.

NOTE: KEEP CUT PIPE IN THE DIRECTION AS THE AIR FLOW.

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WET APPLICATION MATERIALS

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Ducting

Quick-Fit

THE WORLD’S FASTEST DUCTING

NORDFAB’S LEAK-FREE GASKET AND O-RING
LEAK-FREE GASKET

LEAK-FREE O-RING

• General purpose oil resistant polymer

• Resists corrosion from weather

• Preforms well with many oil, water and
hydraulic ﬂuid

• Preforms well with many oils and chemicals

• Good tear resistance
• Should not be used with solvents such as
acetone, and MEK, ozone, chlorinated
hydrocarbons and nitro hydrocarbons
• Fabricated with conductive material
Classiﬁcation:
1. ASTM D-2000 M2BG510 A24 B34 EO14
EO34 EF11 EF21
Temperature Range:
Low Temperature Range: -30° F to +225° F
Intermittent: +280° F

• Resistant to wide temperature range
• Tough
• Can’t damage by ﬂexing and twisting
• Grey or black with grey mark
Classiﬁcation:
1. ASTM D-1056-68.......................SBE43
2. ASTM D-1056-85, 91, 98................2B3
Temperature Range:
Low Temperature Range: -30° F to 225° F
Intermittent +280° F

NOTE: These materials work in conjunction with Nordfab’s standard O-Ring. It does not replace it.
See Installation Guidelines enclosed.
NORDFAB can’t guarantee that these materials will work on every application. Please see above
for manufacturer’s classiﬁcations on these materials. When ordering for mist application specify
epoxy caulk.

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INSTALLATION OF LEAK-FREE gasket

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Ducting

Quick-Fit

THE WORLD’S FASTEST DUCTING

LEAK-FREE GASKET INSTALLATION
The molded Nitrile gaskets slip easily onto one end of the duct and are connected with a standard Q-F clamp to form
a tight and re-useable seal. Note the direction of the airﬂow when installing the duct.

1) Wipe rolled edge with clean cloth. Then apply a
high tack gasket adhesive per the manufacturer’s
instructions. High tack gasket adhesives can be
purchased locally at industrial or automotive
suppliers in either aerosol spray or brushable
formulations.

Airﬂow

2) Carefully place the gasket along the rolled edge
of the part, being careful to avoid kinks or voids.
Only one gasket is needed per joint.

3) Join the gasketed end of the pipe to a
non-gasketed end of the next part in the ducting
run using a standard Q-F clamp. The oil-mist
gasket, in addition to the gasket inside the Q-F
clamp, provides dual protection against leakage.

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INSTALLATION OF
LEAK-FREE O-RING

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Ducting

Quick-Fit

THE WORLD’S FASTEST DUCTING

INSTALLATION OF ADJUSTABLE NIPPLE
FOR OIL MIST OR WET APPLICATIONS

The patented Nordfab “adjustable nipple” provides
unlimited ﬂexibility in the length of a duct run.
1. Cut a standard piece of pipe to length and insert
it into the short adjustable nipple section. This
assembly will telescope to any length. Place the
soft grey (or black with grey mark) o-ring seal
onto the cut (inside) piece of pipe and seat it
evenly against the rolled metal edge of the
adjustable nipple.

2. Place the harder black o-ring seal against the
outside of the inner grey seal.
The order should be as follows:
a) rolled edge or nipple; against
b) soft, small-diameter o-ring; against
c) standard Nordfab o-ring

Airﬂow

3. Finally clamp the standard Q-F clamp over the
rolled metal edge of the adjustable nipple and
the hard rolled black o-ring for a leak-free connection. [Make sure both seals ﬁt completely
under the clamp and that the air-ﬂows from the
cut pipe towards the adjustable nipple].

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SIZING A SYSTEM &
USING THE CHART

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Ducting

Quick-Fit

THE WORLD’S FASTEST DUCTING

SIZING A “Q-F” SYSTEM
NORDFAB offers assistance to those sales people and customers who have never designed a ducting system
before. We can assist you in determining the correct duct size and conﬁguration that will supply you with the
correct ﬂow.
We have the ability to assist customers in designing a blast-gated system; taking into account ﬂow dynamics
that will be affected by blast gates. While blast gates can be used to effectively utilize an undersized ﬁltering
system, they can also destroy the ﬂow if not properly placed.

USING THE CFM / FPM CHART
Different materials need to be moved at different velocities to prevent the material from falling out of the air
stream. For example: wood chips and saw dust ﬂow well at 4500 feet per minute. Referring to the chart on the
next page, you will see that a 4” duct will convey 395 CFM at 4500 FPM. This will mean that a 4” pick-up on a
machine will take 395 CFM from your ﬁltering system; or working in reverse, if you know that a machine will
require approximately 400 CFM to remove the waste, then you should design a 4” duct for the purpose.

Description of Conveyed Material

Velocity FPM

Example

Gases

1,000 - 2,000

All Vapors, Gases and Smoke

Fumes

2,000 - 2,500

Welding

Oil Mist

2,000 - 2,500

Oily Vapor or Oily Smoke

Very Fine Light Dust

2,500 - 3,000

Cotton Lint, Litho Powder, Wood Flour

Dry Dusts and Powders

3,500 - 4,000

Light Shavings, Rubber Dust, Soap Dust

Typical Industrial Dust

3,000 - 4,000

Grinding or Bufﬁng Dust, Granite/Brick/Clay Dust

Heavy Dusts

4,000 - 4,500

Heavy or Wet Sawdust, Metal Turnings, Sand Blast Dust,
Wood Blocks

4,500 +

Moist Cement Dust, Quick-Lime Dust, Sticky Bufﬁng Lint

Heavy or Moist

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2000

100
175
275
395
535
700
885
1090
1320
1570
1850
2140
2450
2790
3150
3535
4365
5280
6285
7370
8550
9800
11160
12600
14130
15745
17445

DUCT Ø

3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
20
22
24
26
28
30
32
34
36
38
40

125
220
340
490
670
875
1105
1365
1650
1965
2300
2675
3070
3490
3940
4420
5455
6600
7855
9210
10685
12260
13950
15755
17665
19680
21800

2500
150
260
410
590
800
1050
1325
1635
1980
2355
2770
3205
3680
4190
4730
5300
6545
7920
9425
11055
12820
14700
16750
18905
21195
23615
26170

3000
170
305
475
685
935
1220
1545
1910
2310
2750
3225
3740
4300
4885
5515
6185
7635
9240
10995
12900
14960
17170
19541
22055
24730
27550
30530

3500
195
350
545
785
1070
1395
1765
2180
2640
3140
3685
4275
4900
5585
6300
7070
8725
10560
12656
14740
17100
19625
22330
25210
28260
31490
34890

4000
220
395
615
885
1205
1570
1990
2455
2970
3535
4150
4810
5520
6285
7090
7950
9815
11880
14135
16580
19230
22080
25120
28360
31800
35425
39250

4500
245
440
680
980
1335
1745
2210
2725
3300
3925
4610
5345
6130
6980
7880
8835
10910
13200
15710
18420
21310
24530
27910
31510
35325
39360
43610

5000

VELOCITY IN FEET PER MINUTE (FPM)

270
485
750
1080
1470
1920
2430
3000
3630
4320
5070
5880
6750
7680
8670
9720
12000
14520
17280
20270
23500
26990
30700
34660
38860
43295
47975

5500

AIR VOLUME IN DUCTS IN CUBIC FEET PER MINUTE (CFM)

295
525
820
1180
1605
2095
2650
3270
3960
4710
5530
6415
7360
8380
9450
10600
13090
15840
18850
22110
25650
29440
33490
37810
42390
47230
52330

6000
320
570
885
1275
1735
2270
2870
3545
4290
5105
5990
6950
7970
9075
10240
11485
14180
17160
20420
23950
27780
31890
26280
40965
45925
51170
56700

6500

345
615
955
1375
1870
2445
3090
3820
4620
5500
6450
7485
8590
9775
11030
12370
15270
18480
21995
25800
29920
34350
39070
44115
49455
55100
61055

7000

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AIR VOLUME CHART (CFM)

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Fax:

________________

ZZZGXFWLQJV\VWHPVFRP

24"

22"

20"

18"

17"

16"

15"

14"

13"

12"

11"

10"

QF
DIA.

(3"Ø 39")

PIPE 5'0"
LONG

ADJ.
NIPPLE
INCL
O-RING
90
o

60
o

45o

ELBOWS
30o

FLOOR
SWEEP

FLEX
HOSE
ADAPT.
QF
CLAMP
PIPE
HANGER

FLEX
HOSE
RUBBER
OR STEEL
FLEX
HOSE
CLAMP

MISC. FITTINGS (REDUCERS,
ADAPTORS, TRANSITIONS, ANY
FITTINGS THAT CAN NOT BE
SPECIFIED ELSEWHERE)

Project: __________________________

QUICK-FIT FAST FAX: 888-922-5040

BLAST
GATES

MACHINE
ADAPTOR
STAND. IS
QF TO ID

Company Name: ___________________________ Phone: ________________

Your Name: ___________________________

"QF" PARTS LIST TAKE-OFF WORKSHEET

QTY

__________

Date:
BRANCH, DOUBLE
BRANCH &
Y BRANCH

___ of ___

Page

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TAKE OFF SHEET

The world’s [ FA S T E S T ] ducting

Ducting

QUICK-FIT FAST FAX TO: 888-922-5040
HAVE $ DUCTING EXPERT CONTACT ME
NAME:

COMPANY:

ADDRESS:

CITY:

ST:

DATE NEEDED:
PHONE:

FAX:

EMAIL:

CURRENT NEED:

Ducting
AIR CLEANING SPECIALISTS, INC.
26 Horan Drive • Fenton, MO 63026
Toll Free 866-455-2130
Fax: 888-922-5040
www.ductingsystems.com

ZIP:

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