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DFARS Specialty Metals
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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Low-Pressure Stainless Steel Threaded Pipe Fittings
Use these fittings in a low-pressure pipe line.
Fittings that meet ANSI/MSS SP-114 adhere to high-quality standards for heat treating, material thickness, and marking. 304 stainless steel fittings have very good corrosion resistance.
Threaded female x butt weld straight adapters are also known as half couplings. Adapters with weld end allow for a permanent connection.
For technical drawings and 3-D models, click on a part number.
Straight Adapters, Threaded Female × Butt Weld
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 150
- Fabrication: Heat Treated
- Specifications Met:
NPT × Butt Weld: ANSI/MSS SP-114, ASTM A351
BSPT × Butt Weld: ANSI/MSS SP-114 - Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
304 Stainless Steel | ||||
|---|---|---|---|---|
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
BSPT Female × Butt Weld | ||||
| 1/8 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1/4 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 0000 |
| 3/8 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 0000 |
| 1/2 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 0000 |
| 3/4 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 0000 |
| 1 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 0000 |
| 1 1/2 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 2 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |