SECTION 40 13 00

INDUSTRIAL DUCTWORK AND ACCESSORIES

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PART 1    GENERAL
1.1	SECTION INCLUDES
A.	Flanged industrial ductwork.
B.	Industrial ductwork, clamp together. (Quick-Fit).
C.	Sealed industrial ductwork, clamp together. (QFS).
1.2	RELATED SECTIONS
A.	Section 07 62 00 - Sheet Metal Flashing and Trim.
B.	Section 07 91 23 - Backer Rods.
C.	Section 22 05 00 - Common Work Results for Plumbing.
D.	Section 23 05 29 - Hangers and Supports for HVAC Piping and Equipment.
E.	Section 23 31 00 - HVAC Ducts and Casings.
F.	Division 16 - Electrical.
1.3	REFERENCES
A.	American Iron and Steel Institute (AISI).
B.	ASTM International (ASTM):
1.	ASTM A240 - Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications.
2.	ASTM A653 - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.
3.	ASTM C920 - Standard Specification for Elastomeric Joint Sealants.
4.	ASTM D1056 - Standard Specification for Flexible Cellular Materials - Sponge or Expanded Rubber.
5.	ASTM D2000 - Standard Classification System for Rubber Products in Automotive Applications.
C.	Canadian General Standards Board (CGSB):
D.	Code of Federal Regulations (CFR):
1.	CFR 117.2600 - Rubber articles intended for repeated use.
E.	Federal Specifications and Standards (FED):
1.	TT-S001543A - Interim Federal Specification - Sealing Compound: Silicone Rubber Base (For Calking, Sealing, And Glazing In Buildings And Other Structures).
2.	TT-S-00230C - Interim Federal Specification - Sealing Compound: Elastomeric Type, Single Component (For Calking, Sealing, And Glazing In Buildings And Other Structures).
F.	Fenestration and Glazing Industry Alliance (FGIA):
1.	AAMA 800 - Voluntary Specification and Test Methods For Sealants.
G.	Food and Drug Administration (FDA).
H.	German Institute for Standardization (DIN):
1.	DIN 18540 - Sealing Of Exterior Wall Joints In Building Construction Using Joint Sealants - Design Of Joints.
I.	National Fire Protection Association (NFPA):
1.	NFPA 77 - Recommended Practice on Static Electricity.
J.	SAE International (SAE).
K.	Sheet Metal and Air Conditioning Contractors' National Association (SMACNA):
1.	HVAC Air Duct Leakage Test Manual.
L.	United States Military Standard (MIL-STD):
1.	MIL-A-46106A - Military Specification: Adhesive-Sealants, Silicone, RTV, One-Component
1.4	SUBMITTALS
A.	Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.	Product Data:
1.	Manufacturer's data sheets on each product to be used.
2.	Preparation instructions and recommendations.
3.	Storage and handling requirements and recommendations.
4.	Typical installation methods.
C.	Shop Drawings: Include details of materials, construction and finish. Include relationship with adjacent construction. 
1.5	QUALITY ASSURANCE
A.	Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with a minimum five years documented experience.
B.	Installer Qualifications: Company specializing in performing Work of this section with minimum two years documented experience with projects of similar scope and complexity.
C.	Source Limitations: Provide each type of product from a single manufacturing source to ensure uniformity.
1.6	PRE-INSTALLATION CONFERENCE
A.	Convene a conference approximately two weeks before scheduled commencement of the Work. Attendees shall include Architect, Contractor and trades involved. Agenda shall include schedule, responsibilities, critical path items and approvals.
1.7	DELIVERY, STORAGE, AND HANDLING
A.	Store and handle in strict compliance with manufacturer's written instructions and recommendations.
B.	Protect from damage due to weather, excessive temperature, and construction operations.
1.8	PROJECT CONDITIONS
A.	Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
1.9	WARRANTY
A.	Manufacturer's Warranty: Provide manufacturer's standard limited warranty against defects in materials and workmanship which become apparent under normal use; applies to the original buyer only and is non-transferable.
1.	Warranty Period: Refer to Nordfab Ducting Terms and Conditions.
PART 2    PRODUCTS
2.1	MANUFACTURERS
A.	Acceptable Manufacturer: Nordfab Ducting, which is located at:<BR />150 Transit Ave.<BR />Thomasville, NC 27361-0190<BR />Toll Free Tel: 800-532-0830<BR />Fax: 336-889-7873<BR />Email: request info (info@nordfab.com );Web: http://www.nordfab.com/en-us 
B.	Substitutions: Not permitted.
C.	Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
2.2	INDUSTRIAL DUCTWORK - GENERAL
A.	System Requirements:
1.	Air Leakage Performance: Overall system.
a.	Rate: Determined in accordance with SMACNA Class 3.
b.	Test Results: Manufacturer published data obtained with standard components in accordance with SMACNA HVAC Air Duct Leakage Test Manual.
2.	Structural Integrity: Complying with SMACNA requirements, rolled and flanged ends can be interpreted as a stiffener, at minimum intervals of 60 inches (1524 mm).
3.	Welded Seams:
a.	Factory Testing: Light test for voids and imperfections. 
b.	Maximum Length: 60 inches (1524 mm) for laser welded seams.
4.	Conductivity:
a.	NFPA 77: Continuous metal systems resistance levels not to exceed 10 ohms.
b.	Joint Connections: Metal-to-metal contact.
c.	Clamps: Ears of clamps contact component edges.
5.	Labeling: Factory applied label indicating air flow direction sensitive components.
B.	Materials:
1.	Metals:
a.	Type: Galvanized steel.
1)	Compliance: Requirements of ASTM A653 with G90 rating.
2)	Operating Temperature: Minus 65 to 390 degrees F (minus 54 to 199 degrees C).
b.	Type: Stainless steel.
1)	Compliance: Requirements of ASTM A240.
2)	Operating Temperature: Minus 65 to 1100 degrees F (Minus 54 to 593 degrees C).
3)	Alloy: Type 304.
4)	Alloy: Type 316.
5)	Alloy: As scheduled and indicated on Drawings.
c.	Type: Manufacturer's Black Metal; operating temperature from minus 65 to 2600 degrees F (minus 54 to 1427 degrees C).
d.	Type: Manufacturer's Black Metal Painted; operating temperature from negative 82 to 2600 degrees F (negative 63 to 1427 degrees C).
e.	Type: AISI Grade 1018 carbon steel for handles on suction nozzle assemblies.
2.	Hoses:
a.	Type: Black thermoplastic flexible rubber reinforced with spring steel wire helix.
1)	Operating Temperature: Minus 65 to 275 degrees F (Minus 54 to 135 degrees C).
b.	Type: Clear polyurethane flexible rubber reinforced with bronze coated spring steel wire helix.
1)	Compliance: Conforms to FDA requirements for food safety.
2)	Operating Temperature: Minus 65 to 225 degrees F (Minus 54 to 107 degrees C).
c.	Type: Clear, static dissipative polyurethane, medium weight, reinforced with bronze coated spring steel wire helix.
1)	Compliance: Conforms to FDA requirements for food safety.
2)	Operating Temperature: Minus 65 to 225 degrees F (Minus 54 to 107 degrees C).
d.	Type: Galvanized steel.
1)	Operating Temperature: Maximum 390 degrees F (199 degrees C).
e.	Type: Stainless steel.
1)	Operating Temperature: Maximum 1100 degrees F (593 degrees C).
3.	Clamp Seals:
a.	Type: Nitrile rubber.
1)	Compliance: Meets or exceeds ASTM D1056.
2)	Temperature Rating: 158 degrees F (70 degrees C) maximum constant temperature, intermittent temperature of 194 degrees F (90 degrees C).
b.	Type: Silicone rubber.
1)	Compliance: Meets or exceeds ASTM D1056.
2)	Maximum Service Temperature: 400 degrees F (204 degrees C).
c.	Type: ePTFE, expanded polytetrafluoroethylene.
1)	Application: For industrial use only; not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations.
2)	Maximum Service Temperature: 600 degrees F (316 degrees C).
3)	Chemical Resistance: Not degraded by common chemicals, PH 0-14.
4.	Rubber O-Rings:
a.	Type: Buna-N, nitrile rubber, black.
1)	Shore Hardness: ASTM D2000, 60 durometer.
2)	Operating Temperature: Minus 40 to 250 degrees F (Minus 40 to 121 degrees C).
b.	Type: Silicone rubber, red.
1)	Compliance:
a)	Shore Hardness: ASTM D2000, 70 durometer.
b)	Food Safety: Conforms to FDA requirements.
2)	Operating Temperature: Minus 75 to 450 degrees F (Minus 59 to 232 degrees C).
5.	Flange Gaskets:
a.	Type: Nitrile rubber, black.
1)	Tensile Strength: 900 psi (6205 kPa).
2)	Elongation: 200 percent.
3)	Shore Hardness: 60 durometer.
4)	Operating Temperature: Minus 20 to 250 degrees F (Minus 34 to 77 degrees C).
b.	Type: Silicone rubber, red.
1)	Tensile Strength: 725 psi (4999 kPa).
2)	Elongation: 250 percent.
3)	Shore Hardness: 50 durometer.
4)	Operating Temperature: Minus 65 to 450 degrees F (Minus 54 to 232 degrees C).
6.	QFS Sealed ducting Systems Applications:
a.	Sponge O-Rings:
1)	Compliance: Meets material classification of ASTM D1056.
2)	Temperature Rating: 250 degrees F (121 degree C) maximum.
3)	Operating Temperature: Minus 30 to 225 degrees F (Minus 34 to 107 degrees C).
b.	Molded Gaskets: Conductive, general purpose oil resistant polymer, black.
1)	Compliance: Meets material classification of ASTM D2000.
2)	Operating Temperature: Minus 30 to 225 degrees F (Minus 34 to 107 degrees C).
c.	Joint Sealants: Leak free caulking.
7.	Non-QFS Applications
a.	Joint Sealants: Suitable temperature rating for required for intended application.
1)	Product: 3M Scotch Seal Metal Sealant 2084.
a)	Compliance: AAMA Specification 801.1.
b)	Maximum Service Temperature: 250 degrees F (121 degrees C).
2)	Product: 3M Polyurethane Adhesive Sealant 540.
a)	Maximum Service Temperature: 250 degrees F (121 degrees C).
3)	Product: Rock River Silicone Sealant.
a)	Compliance:
1)	ASTM C920: Class 25.
2)	TT-S-00230C, TT-S001543A, CFR 117.2600: Class A.
3)	FDA No 421: Conforms to FDA requirements.
b)	Maximum Service Temperature: 400 degrees F (204 degrees C).
4)	Product: Red Devil HVAC/R High Temperature Silicone Sealant, red color.
a)	Compliance:
1)	ASTM C920: Class 25.
2)	TT-S-00230C, TT-S001543A, CEBTP 432.6 140-2, Mil Spec 46106A, CGSB 19C9-9B, DIN 18540, OREX 150031-2: Class A.
b)	Maximum Service Temperature: 500 degrees F (260 degrees C).
5)	Product: As scheduled and indicated on Drawings.
2.3	COMPONENTS AND ACCESSORIES
A.	Industrial Ductwork: Bolt together.
1.	Basis of Design: Flanged Ducting Systems as manufactured by Nordfab Ducting.
2.	Airflow: Standard, non-directional, collars located on exterior side of each port.
3.	Airflow: Directional, factory labeled.
4.	Airflow: As scheduled and indicated on Drawings.
5.	Hardware for Connecting Flanges: Not supplied with flanges.
6.	Flanges: Rotational.
7.	Flanges: Welded, clocked hole pattern as indicated on Drawings.
8.	Flanges: As scheduled and indicated on Drawings.
9.	Ductwork Diameter: ____ inches (____ mm).
10.	Ductwork Diameter: As required for complete installation of ductwork.
11.	Ductwork Diameter: As scheduled and indicated on Drawings.
12.	Ductwork Materials: Galvanized steel.
13.	Ductwork Materials: Stainless steel.
14.	Ductwork Materials: As scheduled and indicated on Drawings.
15.	Ductwork Thickness: 22 gauge.
16.	Ductwork Thickness: 20 gauge.
17.	Ductwork Thickness: 18 gauge.
18.	Ductwork Thickness: 16 gauge.
19.	Ductwork Thickness: 14 gauge.
20.	Ductwork Thickness: 12 gauge.
21.	Ductwork Thickness: 10 gauge.
22.	Ductwork Thickness: As scheduled and indicated on Drawings.
23.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
24.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
25.	End Style: As scheduled and indicated on Drawings.
26.	Hole Patterns: Standard.
27.	Hole Patterns: None.
28.	Hole Patterns: Custom, as scheduled and indicated on Drawings.
29.	Flange Gaskets: As manufactured by Nordfab Ducting.
a.	Type: Standard, nitrile rubber, black.
b.	Type: Silicone rubber, red.
c.	Type: Custom.
d.	Type: None.
e.	Type: As scheduled and indicated on Drawings.
30.	End Plates: As manufactured by Nordfab Ducting.
B.	Industrial Ductwork: Clamp together.
1.	Basis of Design: QF Quick-Fit Ducting Systems as manufactured by Nordfab Ducting.
2.	Basis of Design: QFS Sealed Ducting Systems as manufactured by Nordfab Ducting.
a.	Sealed Ducting System Accessories: QFS gaskets, sponge O-rings and joint sealants as specified herein and as required for complete installation.
b.	Seams: Sealed with solid welds, gaskets, sponge O-rings or joint sealants.
3.	Airflow: Standard, non-directional, collars located on exterior side of each port.
4.	Airflow: Directional, factory labeled.
5.	Airflow: As scheduled and indicated on Drawings.
6.	Ductwork Diameter: ____ inches (____ mm).
7.	Ductwork Diameter: As required for complete installation of ductwork.
8.	Ductwork Diameter: As scheduled and indicated on Drawings.
9.	Ductwork Materials: Galvanized steel.
10.	Ductwork Materials: Stainless steel.
11.	Ductwork Materials: As scheduled and indicated on Drawings.
12.	Ductwork Thickness: 22 gauge.
13.	Ductwork Thickness: 20 gauge.
14.	Ductwork Thickness: 18 gauge.
15.	Ductwork Thickness: 16 gauge.
16.	Ductwork Thickness: 14 gauge.
17.	Ductwork Thickness: As scheduled and indicated on Drawings.
18.	Clamps: Quick-Fit Clamps with Locking Pin as manufactured by Nordfab Ducting.
a.	Design: Closing clamp with bridge pin; compresses internal 360 degree seal to cover rolled beads on adjacent components with QF end styles.
b.	Operation: Over center, spring-lever action; retaining pin for handle and clamp.
c.	Diameter and Pin Size: As required for complete installation of ductwork.
d.	Clamp and Pin Materials: Galvanized steel.
e.	Clamp and Pin Materials: Stainless steel.
f.	Clamp and Pin Materials: As scheduled and indicated on Drawings.
g.	Seal Width: Manufacturer's standard based on duct port diameter.
1)	Diameter 3 to 6 inches (76 to 152 mm): 3/8 inch (10 mm).
2)	Diameter 7 to 11 inches (178 to 279 mm): 1/2 inch (13 mm).
3)	Diameter 12 to 24 inches (305 to 610 mm): 5/8 inch (16 mm).
h.	Seal Type: Standard, nitrile rubber.
i.	Seal Type: Silicone rubber.
j.	Seal Type: ePTFE.
k.	Seal Type: None.
l.	Seal Type: As scheduled and indicated on Drawings.
19.	Sleeves: Quick-Fit Sleeves with O-Rings as manufactured by Nordfab Ducting.
a.	Longitudinal Seams: Laser welded, solid.
b.	End Style: QF End Type; die formed-rolled ends with uniform circumference.
c.	Sleeve Length: Nominal 11 inches (279 mm).
d.	Sleeve Length: Nominal 8-1/2 inches (216 mm).
e.	Sleeve Length: As scheduled and indicated on Drawings.
f.	O-Rings: Standard, nitrile rubber, black.
g.	O-Rings: Silicone rubber, red.
h.	O-Rings: As scheduled and indicated on Drawings.
C.	Duct Pipes: As manufactured by Nordfab Ducting.
1.	Longitudinal Seams: Laser welded; duct pipes 22 to 18 gauge.
2.	Longitudinal Seams: Plasma welded; duct pipes 16 to 10 gauge.
3.	Lengths: Standard, nominal 5 ft (1524 mm).
4.	Lengths: Custom, ____ inches (____ mm).
5.	Lengths: As scheduled and indicated on Drawings.
6.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
7.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
8.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
9.	End Style: Van Stone (VS).
10.	End Style: No Fitting (NF).
11.	End Style: Hose Adapter (RF).
12.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
13.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
14.	End Style: As scheduled and indicated on Drawings.
D.	Elbows: As manufactured by Nordfab Ducting.
1.	Interior Treatment: No Factory buffing.
2.	Interior Treatment: Factory buffing.
3.	Interior Treatment: As scheduled and indicated on Drawings.
4.	Construction: Press-formed halves stitch welded together with rolled ends.
5.	Construction: Segmented, spot welded and caulked gores with a lock form standing seam every 15 degrees.
6.	Construction: Segmented, butt welded gores with a lock form standing seam every 15 degrees.
7.	Construction: As scheduled and indicated on Drawings.
8.	Seams: Longitudinal Seams on Collars: Laser welded.
a.	Caulking: Required.
b.	Caulking: None.
c.	Caulking: As scheduled and indicated on Drawings.
9.	Angle: 30 degrees.
10.	Angle: 45 degrees.
11.	Angle: 60 degrees.
12.	Angle: 90 degrees.
13.	Angle: As scheduled and indicated on Drawings.
14.	End Style: Quick-Fit QF; die formed-rolled ends with uniform circumference.
15.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
16.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
17.	End Style: Van Stone (VS).
18.	End Style: No Fitting (NF).
19.	End Style: Hose Adapter (RF).
20.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
21.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
22.	End Style: As scheduled and indicated on Drawings.
23.	Center Line Radius (CLR): Standard.
a.	Galvanized Steel Elbow Diameter 3 to 7 inches (76 to 178 mm): 1.0.
b.	Galvanized Steel Elbow Diameter 8 to 24 inches (203 to 610 mm): 1.5.
c.	Stainless Steel Elbows: 1.5.
24.	Center Line Radius (CLR): Long Radius (LR).
a.	Galvanized Steel Elbow Diameter 3 to 7 inches (76 to 178 mm): 1.5.
b.	Galvanized Steel Elbow Diameter 8 to 24 inches (203 to 610 mm): 2.5.
c.	Stainless Steel Elbows: 2.5.
25.	Center Line Radius (CLR): As scheduled and indicated on Drawings.
E.	Tubed Elbows: As manufactured by Nordfab Ducting.
1.	Construction: Tubed.
2.	Seams: Longitudinal Seams on Collars: Laser welded.
a.	Caulking: Required.
b.	Caulking: None.
c.	Caulking: As scheduled and indicated on Drawings.
3.	Angle: 30 degrees.
4.	Angle: 45 degrees.
5.	Angle: 60 degrees.
6.	Angle: 90 degrees.
7.	Angle: As scheduled and indicated on Drawings.
8.	End Style: Quick-Fit QF; die formed-rolled ends with uniform circumference.
9.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
10.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
11.	End Style: Van Stone (VS).
12.	End Style: No Fitting (NF).
13.	End Style: Hose Adapter (RF).
14.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
15.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
16.	End Style: As scheduled and indicated on Drawings.
17.	Center Line Radius (CLR): Standard, 1.5.
18.	Center Line Radius (CLR): Long Radius (LR), 2.5.
19.	Center Line Radius (CLR): As scheduled and indicated on Drawings.
F.	Branches: 
1.	Double Branches: As manufactured by Nordfab Ducting.
a.	Seams:
1)	Longitudinal Seams:
a)	Straight and Branch Legs: Lapped, spot welded, caulked.
b)	Straight and Branch Legs: Solid butt welded.
c)	Straight and Branch Legs: As scheduled and indicated on Drawings.
d)	Collars: Laser welded.
e)	Collars: Plasma welded.
f)	Collars: As scheduled and indicated on Drawings.
2)	Seams Between Collars and Legs: 
a)	Collars: Attached to legs with raised lap seam, spot welded.
b)	Collars: Attached to legs with solid weld.
c)	Collars: As scheduled and indicated on Drawings.
d)	Caulking: Required.
e)	Caulking: None.
f)	Caulking: As scheduled and indicated on Drawings.
b.	Length: ____ inches (___ mm).
c.	Length: As scheduled and indicated on Drawings.
d.	Port Diameter:
1)	Ports on Straight Leg, Single End (A): ____ inches (___ mm).
2)	Ports on Straight Leg, Triple End (B): ____ inches (___ mm).
3)	Branch Ports (C): ____ inches (___ mm).
4)	Branch Ports (D): ____ inches (___ mm).
e.	Port Diameter: As scheduled and indicated on Drawings.
f.	Angle: Standard, 30 degrees.
g.	Angle: 45 degrees.
h.	Angle: As scheduled and indicated on Drawings.
i.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
j.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
k.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
l.	End Style: Van Stone (VS).
m.	End Style: No Fitting (NF).
n.	End Style: Hose Adapter (RF).
o.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
p.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
q.	End Style: As scheduled and indicated on Drawings.
2.	Y Branches: As manufactured by Nordfab Ducting.
a.	Seams:
1)	Longitudinal Seams:
a)	Straight and Branch Legs: Lapped, spot welded, caulked.
b)	Straight and Branch Legs: Solid butt welded.
c)	Straight and Branch Legs: As scheduled and indicated on Drawings.
d)	Collars: Laser welded.
e)	Collars: Plasma welded.
f)	Collars: As scheduled and indicated on Drawings.
2)	Seams Between Collars and Legs: 
a)	Collars: Attached to legs with raised lap seam, spot welded.
b)	Collars: Attached to legs with solid weld.
c)	Collars: As scheduled and indicated on Drawings.
d)	Caulking: Required.
e)	Caulking: None.
f)	Caulking: As scheduled and indicated on Drawings.
b.	Length: ____ inches (___ mm).
c.	Length: As scheduled and indicated on Drawings.
d.	Port Diameter:
1)	Body Ports (A): ____ inches (___ mm).
2)	Branch Ports (B): ____ inches (___ mm).
3)	Branch Ports (C): ____ inches (___ mm).
e.	Port Diameter: As scheduled and indicated on Drawings.
f.	Angle: Standard, 60 degrees between branch ports.
g.	Angle: 90 degrees between branch ports.
h.	Angle: As scheduled and indicated on Drawings.
i.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
j.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
k.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
l.	End Style: Van Stone (VS).
m.	End Style: No Fitting (NF).
n.	End Style: Hose Adapter (RF).
o.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
p.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
q.	End Style: As scheduled and indicated on Drawings.
3.	Tee Branches: As manufactured by Nordfab Ducting.
a.	Seams:
1)	Longitudinal Seams:
a)	Straight and Branch Legs: Lapped, spot welded, caulked.
b)	Straight and Branch Legs: Solid butt welded.
c)	Straight and Branch Legs: As scheduled and indicated on Drawings.
d)	Collars: Laser welded.
e)	Collars: Plasma welded.
f)	Collars: As scheduled and indicated on Drawings.
2)	Seams Between Collars and Legs: 
a)	Collars: Attached to legs with raised lap seam, spot welded.
b)	Collars: Attached to legs with solid weld.
c)	Collars: As scheduled and indicated on Drawings.
d)	Caulking: Required.
e)	Caulking: None.
f)	Caulking: As scheduled and indicated on Drawings.
b.	Port Diameter:
1)	Straight Leg Ports (A): ____ inches (___ mm).
2)	Branch Ports (C): ____ inches (___ mm).
c.	Port Diameter: As scheduled and indicated on Drawings.
d.	Length: ____ inches (___ mm).
e.	Length: As scheduled and indicated on Drawings.
f.	Angle: Standard, 90 degrees.
g.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
h.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
i.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
j.	End Style: Van Stone (VS).
k.	End Style: No Fitting (NF).
l.	End Style: Hose Adapter (RF).
m.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
n.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
o.	End Style: As scheduled and indicated on Drawings.
4.	Branches: As manufactured by Nordfab Ducting.
a.	Seams:
1)	Longitudinal Seams:
a)	Straight and Branch Legs: Lapped, spot welded, caulked.
b)	Straight and Branch Legs: Solid butt welded.
c)	Straight and Branch Legs: As scheduled and indicated on Drawings.
d)	Collars: Laser welded.
e)	Collars: Plasma welded.
f)	Collars: As scheduled and indicated on Drawings.
2)	Seams Between Collars and Legs: 
a)	Collars: Attached to legs with raised lap seam, spot welded.
b)	Collars: Attached to legs with solid weld.
c)	Collars: As scheduled and indicated on Drawings.
d)	Caulking: Required.
e)	Caulking: None.
f)	Caulking: As scheduled and indicated on Drawings.
b.	Straight Leg Length: ____ inches (___ mm).
c.	Straight Leg Length: As scheduled and indicated on Drawings.
d.	Port Diameter:
1)	Ports on Straight Leg, Obtuse End (A): ____ inches (___ mm).
2)	Ports on Straight Leg, Acute End (B): ____ inches (___ mm).
3)	Ports on Branch Leg (C): ____ inches (___ mm).
e.	Port Diameter: As scheduled and indicated on Drawings.
f.	Angle: Standard, 30 degrees.
g.	Angle: 45 degrees.
h.	Angle: As scheduled and indicated on Drawings.
i.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
j.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
k.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
l.	End Style: Van Stone (VS).
m.	End Style: No Fitting (NF).
n.	End Style: Hose Adapter (RF).
o.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
p.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
q.	End Style: As scheduled and indicated on Drawings.
G.	In-Cuts: As manufactured by Nordfab Ducting.
1.	Seams:
a.	Longitudinal Seams:
1)	Branch Legs: Lapped, spot welded, caulked.
2)	Branch Legs: Solid butt welded.
3)	Branch Legs: As scheduled and indicated on Drawings.
4)	Collars: Laser welded.
5)	Collars: Plasma welded.
6)	Collars: As scheduled and indicated on Drawings.
b.	Seams Between Collar and Legs: 
1)	Collars: Attached to legs with raised lap seam, spot welded.
2)	Collars: Attached to legs with solid butt weld.
3)	Collars: As scheduled and indicated on Drawings.
4)	Caulking: Required.
5)	Caulking: None.
6)	Caulking: As scheduled and indicated on Drawings.
2.	Saddle Length and Width: ____ inches (___ mm).
3.	Saddle Length and Width: As scheduled and indicated on Drawings.
4.	Branch Port Diameter (C): ____ inches (___ mm).
5.	Branch Port Diameter (C): As scheduled and indicated on Drawings.
6.	Main Pipe Diameter (A): ____ inches (___ mm).
7.	Main Pipe Diameter (A): As scheduled and indicated on Drawings.
8.	Angle: Standard, 30 degrees.
9.	Angle: 45 degrees.
10.	Angle: As scheduled and indicated on Drawings.
11.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
12.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
13.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
14.	End Style: Van Stone (VS).
15.	End Style: No Fitting (NF).
16.	End Style: Hose Adapter (RF).
17.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
18.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
19.	End Style: As scheduled and indicated on Drawings.
H.	Tap-Ins: As manufactured by Nordfab Ducting.
1.	Seams:
a.	Longitudinal Seams:
1)	Branch Legs: Lapped, spot welded, caulked.
2)	Branch Legs: Solid butt welded.
3)	Branch Legs: As scheduled and indicated on Drawings.
4)	Collars: Laser welded.
5)	Collars: Plasma welded.
6)	Collars: As scheduled and indicated on Drawings.
b.	Seams Between Collar and Legs: 
1)	Collars: Attached to legs with raised lap seam, spot welded.
2)	Collars: Attached to legs with solid butt weld.
3)	Collars: As scheduled and indicated on Drawings.
4)	Caulking: Required.
5)	Caulking: None.
6)	Caulking: As scheduled and indicated on Drawings.
2.	Saddle Length and Width: ____ inches (___ mm).
3.	Saddle Length and Width: As scheduled and indicated on Drawings.
4.	Branch Port Diameter (C): ____ inches (___ mm).
5.	Branch Port Diameter (C): As scheduled and indicated on Drawings.
6.	Main Pipe Diameter (A): ____ inches (___ mm) diameter.
7.	Main Pipe Diameter (A): As scheduled and indicated on Drawings.
8.	Angle: Standard, 90 degrees.
9.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
10.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
11.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
12.	End Style: Van Stone (VS).
13.	End Style: No Fitting (NF).
14.	End Style: Hose Adapter (RF).
15.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
16.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
17.	End Style: As scheduled and indicated on Drawings.
I.	Adapters:
1.	Flange Adapters: As manufactured by Nordfab Ducting.
a.	Longitudinal Seams: Laser welded.
b.	Longitudinal Seams: Plasma welded.
c.	Longitudinal Seams: As scheduled and indicated on Drawings.
d.	Length: Nominal 3-1/2 inches (89 mm).
e.	Length: Nominal 5 inches (127 mm).
f.	Length: As scheduled and indicated on Drawings.
g.	Flanged End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
h.	Flanged End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
i.	Flanged End Style: As scheduled and indicated on Drawings.
j.	Non-Flanged End Style: Standard. Quick-Fit (QF); die formed-rolled ends with uniform circumference.
k.	Non-Flanged End Style: Van Stone (VS).
l.	Non-Flanged End Style: No Fitting (NF).
m.	Non-Flanged End Style: Hose Adapter (RF).
n.	Non-Flanged End Style: Raw ID (RI) as scheduled and indicated on Drawings.
o.	Non-Flanged End Style: Raw OD (RO) as scheduled and indicated on Drawings.
p.	Non-Flanged End Style: As scheduled and indicated on Drawings.
2.	Hose Adapters: For rubber or urethane hoses as manufactured by Nordfab Ducting.
a.	Longitudinal Seams: Solid laser welded.
b.	Length: Nominal 4 inches (102 mm).
c.	Length: Nominal 5-1/2 inches (140 mm).
d.	Length: As scheduled and indicated on Drawings.
e.	Hose Connector End Style: Hose Adapter (RF) for rubber or urethane hoses.
f.	Non-Hose End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
g.	Non-Hose End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
h.	Non-Hose End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
i.	Non-Hose End Style: Van Stone (VS).
j.	Non-Hose End Style: No Fitting (NF).
k.	Non-Hose End Style: Hose Adapter (RF).
l.	Non-Hose End Style: Raw ID (RI) as scheduled and indicated on Drawings.
m.	Non-Hose End Style: Raw OD (RO) as scheduled and indicated on Drawings.
n.	Non-Hose End Style: As scheduled and indicated on Drawings.
3.	Machine Adapters: As manufactured by Nordfab Ducting.
a.	Length: Nominal 4 inches (102 mm).
b.	Length: Nominal 5-1/2 inches (127 mm).
c.	Length: As scheduled and indicated on Drawings.
d.	Machine Connector End Style: No Fitting (NF).
e.	Machine Connector End Style: Raw ID (RI) as scheduled and indicated on Drawings.
f.	Machine Connector End Style: Raw OD (RO) as scheduled and indicated on Drawings.
g.	Machine Connector End Style: As scheduled and indicated on Drawings.
h.	Non-Machine End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
i.	Non-Machine End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
j.	Non-Machine End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
k.	Non-Machine End Style: Van Stone (VS).
l.	Non-Machine End Style: No Fitting (NF).
m.	Non-Machine End Style: Hose Adapter (RF).
n.	Non-Machine End Style: Raw ID (RI) as scheduled and indicated on Drawings.
o.	Non-Machine End Style: Raw OD (RO) as scheduled and indicated on Drawings.
p.	Non-Machine End Style: As scheduled and indicated on Drawings.
J.	Reducers: As manufactured by Nordfab Ducting.
1.	Seams:
a.	Longitudinal Seams:
1)	Body: Lapped, spot welded, caulked.
2)	Body: solid butt welded.
3)	Body: As scheduled and indicated on Drawings.
4)	Collars: Laser welded.
5)	Collars: Plasma welded.
6)	Collars: As scheduled and indicated on Drawings.
b.	Seams Between Collars and Body: 
1)	Collars: Attached to body with raised lap seam, spot welded.
2)	Collars: Attached to body with solid butt weld.
3)	Collars: As scheduled and indicated on Drawings.
4)	Caulking: Required.
5)	Caulking: None.
6)	Caulking: As scheduled and indicated on Drawings.
c.	Lengths: Standard.
d.	Lengths: Custom, ____ inches (____ mm).
e.	Lengths: As scheduled and indicated on Drawings.
f.	Larger End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
g.	Larger End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
h.	Larger End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
i.	Larger End Style: Van Stone (VS).
j.	Larger End Style: No Fitting (NF).
k.	Larger End Style: Hose Adapter (RF).
l.	Larger End Style: Raw ID (RI) as scheduled and indicated on Drawings.
m.	Larger End Style: Raw OD (RO) as scheduled and indicated on Drawings.
n.	Larger End Style: As scheduled and indicated on Drawings.
o.	Smaller End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
p.	Smaller End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
q.	Smaller End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
r.	Smaller End Style: Van Stone (VS).
s.	Smaller End Style: No Fitting (NF).
t.	Smaller End Style: Hose Adapter (RF).
u.	Smaller End Style: Raw ID (RI) as scheduled and indicated on Drawings.
v.	Smaller End Style: Raw OD (RO) as scheduled and indicated on Drawings.
w.	Smaller End Style: As scheduled and indicated on Drawings.
K.	Transitions: As manufactured by Nordfab Ducting.
1.	Style: Rectangular to round.
2.	Style: Square to square.
3.	Style: As scheduled and indicated on Drawings.
4.	Lengths: Standard.
5.	Lengths: Custom, ____ inches (____ mm).
6.	Lengths: As scheduled and indicated on Drawings.
7.	Round End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
8.	Round End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
9.	Round End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
10.	Round End Style: Van Stone (VS).
11.	Round End Style: No Fitting (NF).
12.	Round End Style: Hose Adapter (RF).
13.	Round End Style: Raw ID (RI) as scheduled and indicated on Drawings.
14.	Round End Style: Raw OD (RO) as scheduled and indicated on Drawings.
15.	Round End Style: As scheduled and indicated on Drawings.
16.	Four-Sided End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
17.	Four-Sided End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
18.	Four-Sided End Style: Sheet Metal Flange (SFL).
19.	Four-Sided End Style: Raw ID (RI) as scheduled and indicated on Drawings.
20.	Four-Sided End Style: Raw OD (RO) as scheduled and indicated on Drawings.
21.	Four-Sided End Style: As scheduled and indicated on Drawings.
L.	End Caps: As manufactured by Nordfab Ducting.
1.	Longitudinal Seams: Solid laser welded.
2.	Longitudinal Seams: Plasma weld.
3.	Lengths: 2 inches (51 mm).
4.	End Cap Style: Standard, solid flat plate, crimped in place.
5.	End Cap Style: Bird screen, 1/2 inch (13 mm) square wire mesh screen.
6.	End Cap Style: Expanded, perforated metal.
7.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
8.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
9.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
10.	End Style: Van Stone (VS).
11.	End Style: No Fitting (NF).
12.	End Style: Hose Adapter (RF).
13.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
14.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
15.	End Style: As scheduled and indicated on Drawings.
M.	Blast Gates:
1.	Type: Manual Blast Gates as manufactured by Nordfab Ducting.
a.	Materials:
1)	Body: Standard, cast aluminum.
2)	Collars and Blades: Galvanized steel.
b.	Materials: Body, collars and blades in stainless steel.
c.	Materials: As scheduled and indicated on Drawings.
2.	Type: Manual NFMES Blast Gate as manufactured by Nordfab Ducting.
3.	Type Automatic NFES Blast Gates as manufactured by Nordfab Ducting.
a.	Polyurethane Tube: 0.25 inch (6 mm) OD x 0.04 inch (1 mm) wall, 120 psi (827 kPa), Grade E5.
b.	Solenoid: Single solenoid, 2 position, 110 VAC, 2.5 watts, 1/8 inch (3 mm) NPT; IP65 Rated, RoHS, CE.
c.	Solenoid: Single solenoid, 2 position, 24 VDC, 2.5 watts, 1/8 inch (3 mm) NPT; IP65 Rated, RoHS, CE.
d.	Solenoid: Single solenoid, 2 position, 24 VAC, 2.5 watts, 1/8 inch (3 mm) NPT; IP65 Rated, RoHS, CE.
e.	Solenoid: As scheduled and indicated on Drawings.
f.	Sensing Reed Switch Assemblies for Automatic Blast Gates, 1.06 inches (27 mm): As manufactured by Nordfab Ducting.
1)	Switches: 2 D-B54 position sensing switches with indicator light per unit.
4.	Type: Automatic SD Blast Gates as manufactured by Nordfab Ducting.
a.	Polyurethane Tube: 0.25 inch (6 mm) OD x 0.04 inch (1 mm) wall, 120 psi (827 kPa), Grade E5.
b.	Solenoid: Single solenoid, 2 position, 110 VAC, 2.5 watts, 1/8 inch (3 mm) NPT; IP65 Rated, RoHS, CE.
c.	Solenoid: Single solenoid, 2 position, 24 VDC, 2.5 watts, 1/8 inch (3 mm) NPT; IP65 Rated, RoHS, CE.
d.	Solenoid: Single solenoid, 2 position, 24 VAC, 2.5 watts, 1/8 inch (3 mm) NPT; IP65 Rated, RoHS, CE.
e.	Solenoid: As scheduled and indicated on Drawings.
f.	Sensing Reed Switch Assemblies for Automatic Blast Gates, 1.06 inches (27 mm): As manufactured by Nordfab Ducting.
1)	Switches: 2 D-B54 position sensing switches with indicator light per unit.
5.	Type: As scheduled and indicated on Drawings.
6.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
7.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
8.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
9.	End Style: Van Stone (VS).
10.	End Style: No Fitting (NF).
11.	End Style: Hose Adapter (RF).
12.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
13.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
14.	End Style: As scheduled and indicated on Drawings.
N.	Hoses:
1.	Rubber Hoses:
a.	Type: Black thermoplastic flexible rubber reinforced with spring steel wire helix.
1)	Wall Thickness: 0.025 inch (0.6 mm).
b.	Type: Clear polyurethane flexible rubber reinforced with bronze coated spring steel wire helix.
1)	Wall Thickness: 0.015 inch (0.4 mm).
c.	Type: As scheduled and indicated on Drawings.
2.	Static Dissipative Hoses: Clear. Wall Thickness: 0.030 inch (0.8 mm).
3.	Steel Hoses: 
a.	Type: Rigid Flex Steel Hoses.
b.	Type: Ultra Flex Steel Hoses.
c.	Type: As scheduled and indicated on Drawings.
d.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
e.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
f.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
g.	End Style: Van Stone (VS).
h.	End Style: No Fitting (NF).
i.	End Style: Hose Adapter (RF).
j.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
k.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
l.	End Style: As scheduled and indicated on Drawings.
O.	Hose Clamps:
1.	Bridge Clamps for Hoses: As manufactured by Nordfab Ducting.
a.	Application: Designed for use with clockwise wire helix hose.
b.	Materials: Stainless steel.
2.	Hose Clamps: As manufactured by Nordfab Ducting.
a.	Compliance: Meets or exceeds SAE torque specifications.
b.	Materials: Stainless steel.
P.	Hoods:
1.	Type: Barrel Hoods as manufactured by Nordfab Ducting.
2.	Type: Bell Mouth hoods as manufactured by Nordfab Ducting.
3.	Type: Canopy Hoods as manufactured by Nordfab Ducting.
4.	Type: Radial Arm Saw Hoods as manufactured by Nordfab Ducting.
5.	Type: Router Hoods as manufactured by Nordfab Ducting.
6.	Type: Router Hoods with Magnets as manufactured by Nordfab Ducting.
7.	Type: Suction Hoods as manufactured by Nordfab Ducting.
8.	Type: As scheduled and indicated on Drawings.
9.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
10.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
11.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
12.	End Style: Van Stone (VS).
13.	End Style: No Fitting (NF).
14.	End Style: Hose Adapter (RF).
15.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
16.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
17.	End Style: As scheduled and indicated on Drawings.
Q.	Diverter Valves:
1.	Type: Automatic Diverter Valves as manufactured by Nordfab Ducting.
a.	Materials: Manufacturer's standard Black Metal Painted.
b.	Materials: Stainless steel.
c.	Materials: As scheduled and indicated on Drawings.
d.	Polyurethane Tube: 0.25 inch (6 mm) OD x 0.04 inch (1 mm) wall, 120 psi (827 kPa), Grade E5.
e.	Sensing Reed Switch Assemblies for Automatic Blast Gates, 2.50 inches (39 mm): As manufactured by Nordfab Ducting.
1)	Switches: 2 D-B54 position sensing switches with indicator light per unit.
f.	Solenoid: Single solenoid, 2 position, 110 VAC, 0.35 watts, 1/8 inch (3 mm) NPT; IP65 Rated, RoHS, CE.
g.	Solenoid: Single solenoid, 2 position, 24 VDC, 0.86 watts, 1/8 inch (3 mm) NPT; IP65 Rated, RoHS, CE.
h.	Solenoid: As scheduled and indicated on Drawings.
2.	Type: Manual Diverter Valves as manufactured by Nordfab Ducting.
a.	Materials: Manufacturer's standard Black Metal Painted.
b.	Materials: Stainless steel.
c.	Materials: As scheduled and indicated on Drawings.
3.	Type: SD Automatic Diverter Valves as manufactured by Nordfab Ducting.
a.	Materials: Galvanized steel.
b.	Materials: Stainless steel.
c.	Materials: As scheduled and indicated on Drawings.
d.	Polyurethane Tube: 0.25 inch (6 mm) OD x 0.04 inch (1 mm) wall, 120 psi (827 kPa), Grade E5.
e.	Sensing Reed Switch Assemblies for Automatic Blast Gates, 2.50 inches (39 mm): As manufactured by Nordfab Ducting.
1)	Switches: 2 D-B54 position sensing switches with indicator light per unit.
f.	Solenoid: Single solenoid, 2 position, 110 VAC, 0.35 watts, 1/8 inch (3 mm) NPT; IP65 Rated, RoHS, CE.
g.	Solenoid: Single solenoid, 2 position, 24 VDC, 0.86 watts, 1/8 inch (3 mm) NPT; IP65 Rated, RoHS, CE.
h.	Solenoid: As scheduled and indicated on Drawings.
4.	Type: SD Manual Diverter Valves as manufactured by Nordfab Ducting.
a.	Materials: Galvanized steel.
b.	Materials: Stainless steel.
c.	Materials: As scheduled and indicated on Drawings.
5.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
6.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
7.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
8.	End Style: Van Stone (VS).
9.	End Style: No Fitting (NF).
10.	End Style: Hose Adapter (RF).
11.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
12.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
13.	End Style: As scheduled and indicated on Drawings.
14.	Angle: 45 degrees.
R.	Hangers:
1.	Type: Clamp Hangers as manufactured by Nordfab Ducting.
2.	Type: Gripple Hangers.
3.	Type: Pipe Hangers HJ as manufactured by Nordfab Ducting.
4.	Type: Pipe Hangers as manufactured by Nordfab Ducting.
5.	Type: Strut Hangers as manufactured by Nordfab Ducting.
6.	Type: As scheduled and indicated on Drawings.
S.	Roof Skirts: As manufactured by Nordfab Ducting.
1.	Slope: Maximum 23 degrees.
2.	Seams: Bolted.
T.	Flashing:
U.	Wall Flashing: See https://www.nordfab.com/en-us/products/qf-ducting/hangers-and-installation/us-wall-flashing.
1.	Type: Roof Flashing as manufactured by Nordfab Ducting.
a.	Slope: Maximum 23 degrees.
b.	Description: Each unit provided with 1 outside flashing, 2 halves.
c.	Construction: Two halves, spot welded caulked.
2.	Type: Wall Flashing as manufactured by Nordfab Ducting.
a.	Description: Each unit provided with 1 inside and 1 outside flashing, 4 halves.
b.	Construction: Spot welded and caulked.
3.	Type: As scheduled and indicated on Drawings.
V.	Accessories:
1.	Type: Drop Out Boxes as manufactured by Nordfab Ducting.
2.	Type: Ball Joints as manufactured by Nordfab Ducting.
3.	Type: Bleed In Valves as manufactured by Nordfab Ducting.
4.	Type: Butterfly Valves as manufactured by Nordfab Ducting.
5.	Type: Floor Sweeps as manufactured by Nordfab Ducting.
6.	Type: In Line Back Draft Dampers as manufactured by Nordfab Ducting.
7.	Type: Jet Caps as manufactured by Nordfab Ducting.
8.	Type: No-Loss Stackheads as manufactured by Nordfab Ducting.
9.	Type: Silencers as manufactured by Nordfab Ducting.
10.	Type: Sliding Access Panels as manufactured by Nordfab Ducting.
11.	Type: Suction Nozzle Assemblies as manufactured by Nordfab Ducting.
12.	Type: Vibration Isolators as manufactured by Nordfab Ducting.
13.	Type: Viewing Spools as manufactured by Nordfab Ducting.
14.	Type: As scheduled and indicated on Drawings.
15.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
16.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
17.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
18.	End Style: Van Stone (VS).
19.	End Style: No Fitting (NF).
20.	End Style: Hose Adapter (RF).
21.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
22.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
23.	End Style: As scheduled and indicated on Drawings.
W.	Oil Mist Recyclers: As manufactured by Nordfab Ducting.
1.	Description: Each unit consists of recycler unit, molded gasket, clamp, end cap, 5 ft (1524 mm) of clear PVC tubing and hose clamp for drain fitting.
2.	Application: Extracts oil to minimize amount of oil flowing through entire system; installs in vertical or horizontal applications.
3.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
4.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
5.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
6.	End Style: Van Stone (VS).
7.	End Style: No Fitting (NF).
8.	End Style: Hose Adapter (RF).
9.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
10.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
11.	End Style: As scheduled and indicated on Drawings.
X.	In Line Spark Traps: As manufactured by Nordfab Ducting.
1.	Operation: No moving parts, no power required.
2.	Application: Horizontal mounting only; not an explosion isolation device.
3.	End Style: Quick-Fit (QF); die formed-rolled ends with uniform circumference.
4.	End Style: Flat Flange (FFL) retained by 3/8 inch (10 mm) Van Stone lip.
5.	End Style: Angle Flange (AFL) retained by 3/8 inch (10 mm) Van Stone lip.
6.	End Style: Van Stone (VS).
7.	End Style: No Fitting (NF).
8.	End Style: Hose Adapter (RF).
9.	End Style: Raw ID (RI) as scheduled and indicated on Drawings.
10.	End Style: Raw OD (RO) as scheduled and indicated on Drawings.
11.	End Style: As scheduled and indicated on Drawings.
PART 3    EXECUTION
3.1	EXAMINATION AND PREPARATION
A.	Prepare substrates using the methods recommended by the manufacturer for achieving best result for the substrates under project conditions.
B.	Do not proceed with installation until substrates have been prepared using the methods recommended by the manufacturer and deviations from manufacturer's recommended tolerances are corrected. Commencement of installation constitutes acceptance of conditions.
C.	If preparation is the responsibility of another installer, notify Architect in writing of deviations from manufacturer's recommended installation tolerances and conditions.
3.2	INSTALLATION
A.	Install in accordance with manufacturer's instructions approved submittals and in proper relationship with adjacent construction.
3.3	FIELD QUALITY CONTROL
A.	Field Inspection: Coordinate field inspection in accordance with appropriate sections in Division 01.
1.	Testing for Conductivity: Responsibility of the Owner.
3.4	CLEANING AND PROTECTION
A.	Clean products in accordance with the manufacturer's recommendations. 
B.	Touch-up, repair or replace damaged products before Substantial Completion.

END OF SECTION