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 Iron and Steel Threaded Pipe Fittings
Use these fittings for low-pressure applications in noncorrosive environments.
For technical drawings and 3-D models, click on a part number.
Wye Connectors
- For Use With: Air, Steam, Oil, Water, Natural Gas
- Class: 150
- Specifications Met: ASME B16.3, UL Listed, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 40 steel
| Pipe Size  | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | |||||
|---|---|---|---|---|---|
| 3/8 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |
| 1/2 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
| 3/4 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
| 1 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
| 1 1/4 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
| 1 1/2 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
| 2 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated Iron | 000000000 | 00000 |
| 2 1/2 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |
| 3 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |
| 4 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated Iron | 000000000 | 000000 |