Connection Style Connection Style |
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| Butt Weld |
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| Threaded |
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| Socket Connect |
For Use With For Use With |
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Maximum Pressure Maximum Pressure |
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Specifications Met Specifications Met |
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Finish Finish |
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Wall Thickness Wall Thickness |
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Length Length |
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Maximum Steam Pressure Maximum Steam Pressure |
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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 Iron and Steel Threaded Pipe Fittings
These fittings can stand up to high-pressure applications. Use them in noncorrosive environments.
Threaded female x butt weld straight adapters are also known as half couplings.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Class: 3000
- Specifications Met: ANSI/ASME B16.11, ASTM A105, ANSI/ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 160 steel
- Flanges: Use Class 1500 steel
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female × Butt Weld | ||||||
|---|---|---|---|---|---|---|
| 1/8 | 02 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
| 1/4 | 04 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
| 3/8 | 06 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
| 1/2 | 08 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
| 3/4 | 12 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
| 1 | 16 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
| 1 1/4 | 20 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
| 1 1/2 | 24 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
| 2 | 32 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 0000000 | 0000 |
| 2 1/2 | 40 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
| 3 | 48 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
| 4 | 64 | 3,000 psi @ 72° F | 300 psi @ 360° F | Black-Coated Steel | 00000000 | 00000 |
High-Pressure Galvanized Steel Threaded Pipe Fittings
A galvanized finish gives these fittings better corrosion resistance than our plain steel high-pressure fittings. Also known as Class 3000 fittings, they have excellent strength to handle high-pressure applications.
Threaded female x butt weld straight adapters are also known as half couplings.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Class: 3000
- Specifications Met: ANSI/ASME B16.11, ASTM A105, ANSI/ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 160 steel
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female × Butt Weld | |||||
|---|---|---|---|---|---|
| 1/8 | 02 | 3,000 psi @ 72° F | 300 psi @ 360° F | 00000000 | 00000 |
| 1/4 | 04 | 3,000 psi @ 72° F | 300 psi @ 360° F | 00000000 | 0000 |
| 3/8 | 06 | 3,000 psi @ 72° F | 300 psi @ 360° F | 00000000 | 0000 |
| 1/2 | 08 | 3,000 psi @ 72° F | 300 psi @ 360° F | 00000000 | 0000 |
| 3/4 | 12 | 3,000 psi @ 72° F | 300 psi @ 360° F | 00000000 | 0000 |
| 1 | 16 | 3,000 psi @ 72° F | 300 psi @ 360° F | 00000000 | 0000 |
| 1 1/4 | 20 | 3,000 psi @ 72° F | 300 psi @ 360° F | 00000000 | 0000 |
| 1 1/2 | 24 | 3,000 psi @ 72° F | 300 psi @ 360° F | 00000000 | 0000 |
| 2 | 32 | 3,000 psi @ 72° F | 300 psi @ 360° F | 00000000 | 00000 |
Extreme-Pressure Steel Threaded Pipe Fittings
The strongest steel fittings we offer, these can withstand extreme-pressure applications.
Threaded female x butt weld straight adapters are also known as half couplings.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Class: 6000
- Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B16.11, ASTM A105
- Pipe Nipples and Pipe: Use Schedule XXH steel
- Flanges: Use Class 1500 steel
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female × Butt Weld | ||||||
|---|---|---|---|---|---|---|
| 1/4 | 04 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 00000 |
| 3/8 | 06 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 0000 |
| 1/2 | 08 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 0000 |
| 3/4 | 12 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 0000 |
| 1 | 16 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 0000 |
| 1 1/4 | 20 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 000000000 | 00000 |
| 1 1/2 | 24 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 00000 |
| 2 | 32 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 00000 |
High-Pressure Socket-Connect
Steel Unthreaded Pipe Fittings
Socket-connect fittings are easier to weld than butt-weld fittings because the fitting doesn’t need to align perfectly to the pipe. Slide pipe into the socket and weld for a strong, permanent connection. Fittings have heavy duty construction that stands up to high-pressure applications. They are for use in noncorrosive environments.
Socket connect x butt weld straight adapters are also known as half couplings.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Steam, Oil, Water, Natural Gas
- Class: 3000
- Specifications Met: ASTM A105, ANSI/ASME B16.11
- Pipe Nipples and Pipe: Use Schedule 80 steel
- Flanges: Use Class 300 and 600 steel
| Pipe Size | Wall Thick. | Construction | Max. Pressure | Max. Steam Pressure | Material | Each | |
Socket Connect Female × Butt Weld | |||||||
|---|---|---|---|---|---|---|---|
| 1/8 | 0.255" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 00000 |
| 1/4 | 0.335" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 0000 |
| 3/8 | 0.301" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 0000 |
| 1/2 | 0.33" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 0000 |
| 3/4 | 0.355" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 0000 |
| 1 | 0.396" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 0000 |
| 1 1/4 | 0.45" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 0000 |
| 1 1/2 | 0.46" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 0000 |
| 2 | 0.48" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 00000 |
| 2 1/2 | 0.608" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 000000 |
| 3 | 0.651" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 000000 |
| 4 | 0.765" | Seamless | 3,000 psi @ 72° F | Not Rated | Steel | 000000000 | 000000 |