Flanges
DNOW has a large stock inventory of flanges that allow two segments of pipe to be joined together or for valves to be connected to piping systems. Our flanges are from manufacturers that are approved through our ISO 9001 certified quality program and may be cast, forged or cut from carbon steel, stainless steel, specialty alloy and fiberglass to cover almost any requirement.
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Carbon Steel Flanges
We offer a full line of CS flanges from some of the best global manufacturers.
- Standard Flanges
- High Yield Flanges
- API Flanges
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Specifications
| Standards / Material Grades | ASTM A/SA-106, A/SA-105 |
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| Sizes | ¼ in. NPS – 24 in. NPS (larger sizes by request) |
| Types | Slip On, Blind, Threaded, Weld Neck, Socket Weld, Lap Joint |
A Selection of Supplier and Manufacturer Partnerships
AFGlobal
Bebitz India
Boltex
Coffer Flange
Flanges, Inc.
Flanschenwerk Bebitz GmbH
Forged Vessel Connections
Friedrich Geldbach
Galperti Group
Gulf Manufacturing
ULMA Forja
Weldbend
Stainless & Alloy Steel Flanges
Our forged austenitic stainless steel flanges are intended for low- or high-temperature general corrosive service.
- Raised face and ring joint connections
- Approved manufacturers
- Extensive inventory
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Specifications
| Standards / Material Grades | ASTM A182/SA182, ASME B16.5, B16.47 Series A & B, B16.48, F304/L, F316/L, F51/60 Duplex |
|---|---|
| Sizes | ½ in. NPS – 12 in. NPS |
| Pressure Ratings | ANSI Class 150, 300, 600, 900, 1500 |
| Types | Slip On, Blind, Threaded, Weld Neck, Socket Weld, Lap Joint |
A Selection of Supplier and Manufacturer Partnerships
Chandan Steel
Felix Technology
Flanschenwerk Bebitz GmbH
Maass Flange
Metalfar
ULMA Forja
Fiberglass & Composite Flanges
Our fiberglass flanges are ideal for highly corrosive gas and water applications:
- Flow/Emulsion lines
- Injection/Disposal lines
- Group lines
- Gas gathering & transport lines
- De-watering lines
- Water & frac water transfer lines
- Tank battery & facility piping
- Chemical process piping
- CO₂ & H₂S service
- Industrial wastewater
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Specifications
| Standards / Material Grades | ANSI B16.5, aromatic amine cured epoxy resin, cycloalphatic cured epoxy resin Compression molded, contact molded, centrifugal cast, fabricated or filament wound |
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| Sizes | Bonded: 2 in. – 42 in. (50 mm – 1066 mm) Threaded: 2 in. – 14 in. (50 mm – 355 mm) |
| Pressure Rating | ANSI Class 150, 300, 600, 900, 1500, depending on product |
| Temperature Rating | Up to 225° F (106° C), depending on product |
| Types | Stub flanges, blind flanges, orifice flanges, flange rings, depending on product |
Downloads
| TS&M Fiberglass Piping Systems Flyer - Canada |  |
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| TS&M Fiberglass Piping Systems Flyer - U.S. | |
A Selection of Supplier and Manufacturer Partnerships
NOV Fiber Glass Systems (Bondstrand™)
NOV Fiber Glass Systems (Centron®)
NOV Fiber Glass Systems (Red Thread™ HP)
NOV Fiber Glass Systems (STAR™)
