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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Extreme-Pressure Steel Threaded Pipe Fittings
The strongest steel fittings we offer, these can withstand extreme-pressure applications.
Union connectors separate into three pieces so you can access your line without unthreading pipe connections.
Note: The maximum pressure listed for Class 6000 fittings is for conditions where there are no sudden changes in pressure or velocity. Please refer to ASME B16.11 to determine the specific maximum operating pressure for your application.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Pressure Class: 6000
- Specifications Met: ASME B1.20.1, 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 | ||||||
|---|---|---|---|---|---|---|
| 1/4 | 04 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 000000 |
| 3/8 | 06 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 00000 |
| 1/2 | 08 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 00000 |
| 3/4 | 12 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 00000 |
| 1 | 16 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 00000 |
| 1 1/4 | 20 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 000000000 | 000000 |
| 1 1/2 | 24 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 000000 |
| 2 | 32 | 6,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 000000 |
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.
Union straight connectors separate into three pieces for access to your line. Union straight connectors with gasket provide extra leak protection.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water, Oil, Natural Gas, Steam, Hydraulic Fluid
- Temperature Range: -20° to 700° F
- Specifications Met: MSS SP-83, ASTM A105
- Pipe Nipples and Pipe: Use Schedule XXH steel
- Flanges: Use Class 300 and 600 steel
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Material | Gasket Material | Each | |
| 1/2 | 08 | 3,000 psi @ 100° F | 1,500 psi @ 700° F | Steel | Graphite-Filled 304 Stainless Steel | 0000000 | 0000000 |
| 3/4 | 12 | 3,000 psi @ 100° F | 1,500 psi @ 700° F | Steel | Graphite-Filled 304 Stainless Steel | 0000000 | 000000 |
| 1 | 16 | 3,000 psi @ 100° F | 1,500 psi @ 700° F | Steel | Graphite-Filled 304 Stainless Steel | 0000000 | 00000 |
| 1 1/4 | 20 | 3,000 psi @ 100° F | 1,500 psi @ 700° F | Steel | Graphite-Filled 304 Stainless Steel | 0000000 | 000000 |
| 1 1/2 | 24 | 3,000 psi @ 100° F | 1,500 psi @ 700° F | Steel | Graphite-Filled 304 Stainless Steel | 0000000 | 000000 |
| 2 | 32 | 3,000 psi @ 100° F | 1,500 psi @ 700° F | Steel | Graphite-Filled 304 Stainless Steel | 0000000 | 000000 |
Extreme-Pressure Socket-Connect Steel Unthreaded Pipe Fittings
Also known as Pressure Class 6000 fittings, these heavy duty forged fittings are the strongest steel fittings we offer. They 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 are for use in noncorrosive environments.
Union straight connectors separate into three pieces for access to your line.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water, Oil, Natural Gas, Steam, Hydraulic Fluid
- Pressure Class : 6000
- Specifications Met: ASTM A105
- Pipe Nipples and Pipe: Use Schedule XXH steel
- Flanges: Use Class 1500 steel
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Each | |
| 1/2 | 08 | 6,000 psi @ 72° F | 300 psi @ 360° F | 000000000 | 000000 |
| 3/4 | 12 | 6,000 psi @ 72° F | 300 psi @ 360° F | 000000000 | 00000 |
| 1 | 16 | 6,000 psi @ 72° F | 300 psi @ 360° F | 000000000 | 00000 |
| 1 1/4 | 20 | 6,000 psi @ 72° F | 300 psi @ 360° F | 000000000 | 00000 |
| 1 1/2 | 24 | 6,000 psi @ 72° F | 300 psi @ 360° F | 000000000 | 000000 |
| 2 | 32 | 6,000 psi @ 72° F | 300 psi @ 360° F | 000000000 | 000000 |