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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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High-Pressure Steel Threaded Pipe Flanges
Front
Raised Surface on Back
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class: 1500
- Specifications Met:
1/2 to 2 Pipe Sizes: ASME B16.5, ASTM A105, MSS SP-25, MSS SP-6
All other sizes: ASTM A105 - Pipe Nipples and Pipe: Use Schedule 160 or XXH steel
- Fittings: Use Class 3000 or 6000 iron and steel
Also known as Pressure Class 1500 flanges, these have the strength to handle high pressures. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. Flanges are for use in noncorrosive environments.
For technical drawings and 3-D models, click on a part number.
Bolt Hole | |||||||||||
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| Pipe Size | Dash Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT | |||||||||||
| 1/2 | 08 | 4 3/4" | 3/4" | 7/8" | 4 | 3 1/4" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Black-Coated Steel | 0000000 | 0000000 |
| 3/4 | 12 | 5 1/8" | 3/4" | 7/8" | 4 | 3 1/2" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Black-Coated Steel | 0000000 | 000000 |
| 1 | 16 | 5 7/8" | 7/8" | 1" | 4 | 4" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Black-Coated Steel | 0000000 | 000000 |
| 1 1/4 | 20 | 6 1/4" | 7/8" | 1" | 4 | 4 3/8" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Black-Coated Steel | 0000000 | 000000 |
| 1 1/2 | 24 | 7" | 1" | 1 1/8" | 4 | 4 7/8" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Black-Coated Steel | 0000000 | 000000 |
| 2 | 32 | 8 1/2" | 7/8" | 1" | 8 | 6 1/2" | 3,700 psi @ 72° F | 3,200 psi @ 300° F | Black-Coated Steel | 0000000 | 000000 |
| 3 | 48 | 10 1/2" | 1 1/4" | 1 1/4" | 8 | 8" | Not Rated | Not Rated | Black-Coated Steel | 0000000 | 000000 |
| 4 | 64 | 12 1/4" | 1.38" | 1.38" | 8 | 9 1/2" | Not Rated | Not Rated | Black-Coated Steel | 0000000 | 000000 |