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Thread Type Thread Type | Show |
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For Pipe Material For Pipe Material |
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For Use With For Use With |
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System of Measurement System of Measurement |
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Maximum Pressure Maximum Pressure |
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For Pipe Schedule For Pipe Schedule |
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 | 40 |
Connection Type Connection Type |
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 | Pipe |
Maximum Steam Pressure Maximum Steam Pressure |
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Construction Construction |
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Fabrication Fabrication |
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Specifications Met Specifications Met |
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Connects To Connects To |
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Maximum Temperature Maximum Temperature |
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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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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.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- 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 | 150 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 1/4 | 150 psi @ 72° F | 150 psi @ 360° F | 00000000 | 0000 |
| 3/8 | 150 psi @ 72° F | 150 psi @ 360° F | 00000000 | 0000 |
| 1/2 | 150 psi @ 72° F | 150 psi @ 360° F | 00000000 | 0000 |
| 3/4 | 150 psi @ 72° F | 150 psi @ 360° F | 00000000 | 0000 |
| 1 | 150 psi @ 72° F | 150 psi @ 360° F | 00000000 | 0000 |
| 1 1/2 | 150 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
| 2 | 150 psi @ 72° F | 150 psi @ 360° F | 00000000 | 00000 |
Nuts for High-Pressure Nipples for Compressed Gas
Slide a high-pressure hose nipple for compressed gas into one of these nuts to connect a pipe to the inlet of a pressure regulator. They are also known as CGA (Compressed Gas Association) nuts and inlet nuts.
Brass nuts have good corrosion resistance and are softer than 316 stainless steel nuts, so they're easier to thread together. Aluminum-plated brass nuts have better corrosion and wear resistance than unplated brass.
Note: Nuts have a CGA, BS, or DIN number that corresponds to a specific type of gas. Choose a nut with the same number as your tank and other system components.
- Maximum Pressure: See table
- Maximum Temperature: 120° F, except DIN 477 No. 9: 250° F
| Number | Pipe Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | |||||||
|---|---|---|---|---|---|---|---|
| DIN 477 No. 9 | 3/4 | BSPT | Right Hand | 4,300 psi @ 72° F | Oxygen | 000000000 | 000000 |
- Maximum Pressure: See table
- Maximum Temperature: 120° F, except DIN 477 No. 12: 250° F