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.
More
High-Pressure Stainless Steel Threaded Pipe Fittings
Use these heavy duty fittings in high-pressure flow applications.
304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance. Tee outlets allow you to create a threaded outlet anywhere along a pipe. They are also known as branch connectors and are comparable to Thredolet. To install, drill a hole in your pipe to match the fitting’s pipe size and weld in place.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: MSS SP-97, ASME B31.1
Pipe Size | For Pipe Size | Ht. | Max. Pressure | Max. Steam Pressure | Each | |
304/304L Stainless Steel | ||||||
|---|---|---|---|---|---|---|
NPT Female × Butt Weld | ||||||
| 1/4 | 1/4 to 3/8 | 3/4" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1/4 | 1/2 to 36 | 3/4" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/8 | 3/8 to 1/2 | 13/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/8 | 3/4 to 36 | 13/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1/2 | 1/2 | 1" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1/2 | 3/4 to 36 | 1" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/4 | 1 1/2 to 36 | 1 1/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/4 | 3/4 to 1 1/4 | 1 1/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 | 1 1/4 to 2 1/2 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 | 1 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 | 3 to 36 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 1/4 | 1 1/4 to 1 1/2 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/4 | 2 to 3 1/2 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/4 | 4 to 36 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 | 6 to 36 | 1 3/8" | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 | 1 1/2 | 1 3/8" | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 | 2 to 2 1/2 | 1 3/8" | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 | 3 to 5 | 1 3/8" | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 | 4 to 6 | 1 1/2" | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 | 8 to 36 | 1 1/2" | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 | 2 | 1 1/2" | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 | 2 1/2 to 3 1/2 | 1 1/2" | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
316/316L Stainless Steel | ||||||
NPT Female × Butt Weld | ||||||
| 1/4 | 1/4 to 3/8 | 3/4" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1/4 | 1/2 to 36 | 3/4" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/8 | 3/8 to 1/2 | 13/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/8 | 3/4 to 36 | 13/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1/2 | 1/2 | 1" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1/2 | 3/4 to 36 | 1" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/4 | 1 1/2 to 36 | 1 1/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/4 | 3/4 to 1 1/4 | 1 1/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 | 1 1/4 to 2 1/2 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 | 1 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 | 3 to 36 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 1/4 | 1 1/4 to 1 1/2 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/4 | 2 to 3 1/2 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/4 | 4 to 36 | 1 5/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 | 6 to 36 | 1 3/8" | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 | 1 1/2 | 1 3/8" | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 | 2 to 2 1/2 | 1 3/8" | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 | 3 to 5 | 1 3/8" | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 | 4 to 6 | 1 1/2" | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 | 8 to 36 | 1 1/2" | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 | 2 | 1 1/2" | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 | 2 1/2 to 3 1/2 | 1 1/2" | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
High-Pressure Socket-Connect Stainless Steel Unthreaded Pipe Fittings
Forged for excellent strength, these heavy duty socket-connect fittings stand up to high-pressure applications. 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.
304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.
Tee outlets allow you to create a tap anywhere along a pipe. They are also known as branch connectors and are comparable to Weldolet. To install, drill a hole in your pipe to match the fitting’s pipe size and weld in place.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: ASTM A182
- Pipe Nipples and Pipe: Use Schedule 80 stainless steel
| Pipe Size | For Pipe Size | Height | Max. Pressure | Max. Steam Pressure | Each | |
304/304L Stainless Steel | ||||||
|---|---|---|---|---|---|---|
Socket Connect × Butt Weld | ||||||
| 1/4 | 1/4 to 3/8 | 3/4" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 000000 |
| 1/4 | 1/2 to 36 | 3/4" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 00000 |
| 3/8 | 3/4 to 36 | 13/16" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 00000 |
| 1/2 | 1/2 | 1" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 00000 |
| 1/2 | 3/4 to 36 | 1" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 00000 |
| 3/4 | 1 1/2 to 36 | 1 1/16" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 00000 |
| 3/4 | 3/4 to 1 1/4 | 1 1/16" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 00000 |
| 1 | 1 1/4 to 2 1/2 | 1 5/16" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 00000 |
| 1 | 1 | 1 5/16" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 00000 |
| 1 | 3 to 36 | 1 5/16" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 00000 |
| 1 1/4 | 2 to 3 1/2 | 1 5/16" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 000000 |
| 1 1/2 | 6 to 36 | 1 3/8" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 000000 |
| 1 1/2 | 1 1/2 | 1 3/8" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 000000 |
| 1 1/2 | 2 to 2 1/2 | 1 3/8" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 000000 |
| 1 1/2 | 3 to 5 | 1 3/8" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 000000 |
| 2 | 4 to 6 | 1 1/2" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 000000 |
| 2 | 8 to 36 | 1 1/2" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 000000 |
| 2 | 2 | 1 1/2" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 000000 |
| 2 | 2 1/2 to 3 1/2 | 1 1/2" | 2,900 psi @ 72° F | 2,400 psi @ 212° F | 0000000 | 000000 |
316/316L Stainless Steel | ||||||
Socket Connect × Butt Weld | ||||||
| 1/4 | 1/4 to 3/8 | 3/4" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 00000 |
| 1/4 | 1/2 to 36 | 3/4" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 00000 |
| 3/8 | 3/4 to 36 | 13/16" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 00000 |
| 1/2 | 1/2 | 1" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 00000 |
| 1/2 | 3/4 to 36 | 1" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 00000 |
| 3/4 | 1 1/2 to 36 | 1 1/16" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 00000 |
| 3/4 | 3/4 to 1 1/4 | 1 1/16" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 00000 |
| 1 | 1 1/4 to 2 1/2 | 1 5/16" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 00000 |
| 1 | 1 | 1 5/16" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 00000 |
| 1 | 3 to 36 | 1 5/16" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 00000 |
| 1 1/2 | 6 to 36 | 1 3/8" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 000000 |
| 1 1/2 | 3 to 5 | 1 3/8" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 000000 |
| 2 | 4 to 6 | 1 1/2" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 000000 |
| 2 | 2 | 1 1/2" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 000000 |
| 2 | 2 1/2 to 3 1/2 | 1 1/2" | 2,900 psi @ 72° F | 2,480 psi @ 212° F | 0000000 | 000000 |
Thick-Wall Butt-Weld Stainless Steel Unthreaded Pipe Fittings
With a thicker wall than our standard-wall butt-weld pipe fittings, these offer high strength while providing a smooth connection for maximum flow. They have beveled ends that, when flush to pipe, create a trough for a leak-resistant, permanent weld.
304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.
Tee outlets allow you to create a tap anywhere along a pipe. They are also known as branch connectors and are comparable to Weldolet. To install, drill a hole in your pipe to match the fitting’s pipe size and weld in place.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: ASME B31.1, MSS SP-97
- Pipe Nipples and Pipe: Use Schedule 80 stainless steel
| Pipe Size (Wall Thick.) | For Pipe Size (Wall Thick.) | Ht. | Construction | Max. Pressure | Max. Steam Pressure | Each | |
304/304L Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|
| 1/4 (0.119") | 1/4 to 3/8 (0.238") | 5/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1/4 (0.119") | 1/4 to 36 (0.238") | 5/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 1/4 (0.119") | 1/2 to 36 (0.238") | 5/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/8 (0.126") | 3/8 to 1/2 (0.252") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/8 (0.126") | 3/8 to 36 (0.252") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 3/8 (0.126") | 3/4 to 36 (0.252") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1/2 (0.147") | 1/2 (0.294") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1/2 (0.147") | 1/2 to 36 (0.294") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 1/2 (0.147") | 3/4 to 36 (0.294") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/4 (0.154") | 3/4 to 1 1/4 (0.308") | 7/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/4 (0.154") | 3/4 to 36 (0.308") | 7/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 3/4 (0.154") | 1 1/2 to 36 (0.308") | 7/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 (0.179") | 1 (0.358") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 (0.179") | 1 to 36 (0.358") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 1 (0.179") | 1 1/4 to 2 1/2 (0.358") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 (0.179") | 3 to 36 (0.358") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 1/4 (0.191") | 1 1/4 to 1 1/2 (0.382") | 1 1/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 1/4 (0.191") | 1 1/4 to 36 (0.382") | 1 1/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 1 1/4 (0.191") | 2 to 3 1/2 (0.382") | 1 1/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 1/2 (0.2") | 1 1/2 (0.4") | 1 5/16" | Seamless | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 (0.2") | 1 1/2 to 36 (0.4") | 1 5/16" | Seamless | 2,800 psi @ 72° F | 600 psi @ 220° F | 0000000 | 000000 |
| 1 1/2 (0.2") | 3 to 5 (0.4") | 1 5/16" | Seamless | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 (0.2") | 6 to 36 (0.4") | 1 5/16" | Seamless | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 (0.218") | 2 (0.436") | 1 1/2" | Seamless | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 (0.218") | 2 to 36 (0.436") | 1 1/2" | Seamless | 2,500 psi @ 72° F | 600 psi @ 220° F | 0000000 | 000000 |
| 2 (0.218") | 2 1/2 to 3 1/2 (0.436") | 1 1/2" | Seamless | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 (0.218") | 4 to 6 (0.436") | 1 1/2" | Seamless | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 (0.218") | 8 to 36 (0.436") | 1 1/2" | Seamless | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
316/316L Stainless Steel | |||||||
| 1/4 (0.119") | 1/4 to 3/8 (0.238") | 5/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1/4 (0.119") | 1/4 to 36 (0.238") | 5/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 1/4 (0.119") | 1/2 to 36 (0.238") | 5/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/8 (0.126") | 3/8 to 1/2 (0.252") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/8 (0.126") | 3/4 to 36 (0.252") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1/2 (0.147") | 1/2 (0.294") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1/2 (0.147") | 1/2 to 36 (0.294") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 1/2 (0.147") | 3/4 to 36 (0.294") | 3/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/4 (0.154") | 3/4 to 1 1/4 (0.308") | 7/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/4 (0.154") | 3/4 to 36 (0.308") | 7/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 3/4 (0.154") | 1 1/2 to 36 (0.308") | 7/8" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 (0.179") | 1 (0.358") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 (0.179") | 1 to 36 (0.358") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 1 (0.179") | 1 1/4 to 2 1/2 (0.358") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 (0.179") | 3 to 36 (0.358") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 1/4 (0.191") | 1 1/4 to 36 (0.382") | 1 1/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 0000000 | 00000 |
| 1 1/4 (0.191") | 4 to 36 (0.382") | 1 1/4" | Seamless | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 1 1/2 (0.2") | 1 1/2 to 36 (0.4") | 1 5/16" | Seamless | 2,800 psi @ 72° F | 600 psi @ 220° F | 0000000 | 000000 |
| 1 1/2 (0.2") | 3 to 5 (0.4") | 1 5/16" | Seamless | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 1 1/2 (0.2") | 6 to 36 (0.4") | 1 5/16" | Seamless | 2,800 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 (0.218") | 2 to 36 (0.436") | 1 1/2" | Seamless | 2,500 psi @ 72° F | 600 psi @ 220° F | 0000000 | 000000 |
| 2 (0.218") | 2 1/2 to 3 1/2 (0.436") | 1 1/2" | Seamless | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 (0.218") | 4 to 6 (0.436") | 1 1/2" | Seamless | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 2 (0.218") | 8 to 36 (0.436") | 1 1/2" | Seamless | 2,500 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
High-Pressure Iron and Steel Threaded Pipe Fittings
These fittings can stand up to high-pressure applications. Use them in noncorrosive environments.
Tee outlets allow you to create a threaded outlet anywhere along a pipe. They are also known as branch connectors and are comparable to Thredolet. To install, drill a hole in your pipe to match the fitting’s pipe size and weld in place.
Phosphate-coated and zinc-phosphate-coated fittings offer some corrosion resistance, but aren't intended for corrosive environments.
Note: The maximum pressure listed for Class 3000 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
- Specifications Met : ASME B31.1, ASTM A105, ASME B31.3, MSS SP-97, ASME B16.9, ASME B16.11
- Pipe Nipples and Pipe: Use Schedule 160 steel
- Flanges: Use Class 1500 steel
| Pipe Size | Dash Size | For Pipe Size | Construction | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female × Butt Weld | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4 | 04 | 1/4 to 3/8 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 000000 |
| 1/4 | 04 | 1/2 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 0000000 | 00000 |
| 3/8 | 06 | 3/8 to 1 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 3/8 | 06 | 1 1/4 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 0000000 | 00000 |
| 1/2 | 08 | 1/2 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 1/2 | 08 | 3/4 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 0000000 | 00000 |
| 3/4 | 12 | 3/4 to 1 1/4 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 3/4 | 12 | 1 1/2 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 0000000 | 00000 |
| 1 | 16 | 1 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 1 | 16 | 1 1/4 to 2 1/2 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 1 | 16 | 3 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 0000000 | 00000 |
| 1 1/4 | 20 | 1 1/4 to 1 1/2 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 1 1/4 | 20 | 2 to 3 1/2 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 1 1/4 | 20 | 4 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 0000000 | 00000 |
| 1 1/2 | 24 | 1 1/2 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 1 1/2 | 24 | 2 to 2 1/2 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 1 1/2 | 24 | 3 to 5 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 1 1/2 | 24 | 6 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 0000000 | 00000 |
| 2 | 32 | 2 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 2 | 32 | 2 1/2 to 3 1/2 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 2 | 32 | 4 to 6 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 00000000 | 00000 |
| 2 | 32 | 8 to 36 | Seamless | 3,000 psi @ 72° F | 300 psi @ 360° F | Zinc-Phosphate-Coated Steel | 0000000 | 00000 |
Standard-Wall Butt-Weld Steel Unthreaded Pipe Fittings
Butt-weld fittings allow for a smooth connection that provides maximum flow. They have beveled ends that, when flush to pipe, create a trough for a strong, permanent weld. Fittings are also known as Schedule 40. They are for use in noncorrosive environments.
Tee outlets allow you to create a tap anywhere along a pipe. They are known as branch connectors and are comparable to Weldolet. To install, drill a hole in your pipe to match the fitting's pipe size and weld in place.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: ASTM A105, MSS SP-97
- Pipe Nipples and Pipe: Use Schedle 80 steel
| Pipe Size (Wall Thick.) | For Pipe Size (Wall Thick.) | Height | Construction | Maximum Pressure | Maximum Steam Pressure | Each | |
| 1/4 (0.088") | 1/2 to 36 (0.256") | 5/8" | Seamless | 3,000 psi @ 72° F | 3,000 psi @ 210° F | 0000000 | 000000 |
| 1/2 (0.109") | 3/4 to 36 (0.314") | 3/4" | Seamless | 3,000 psi @ 72° F | 3,000 psi @ 210° F | 0000000 | 00000 |
| 1/2 (0.109") | 1/2 (0.314") | 3/4" | Seamless | 3,000 psi @ 72° F | 3,000 psi @ 210° F | 0000000 | 00000 |
| 3/4 (0.113") | 1 1/2 to 36 (0.338") | 7/8" | Seamless | 3,000 psi @ 72° F | 3,000 psi @ 210° F | 0000000 | 00000 |
| 3/4 (0.113") | 3/4 to 1 1/4 (0.338") | 7/8" | Seamless | 3,000 psi @ 72° F | 3,000 psi @ 210° F | 0000000 | 00000 |
| 1 (0.133") | 1 1/4 to 2 1/2 (0.382") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 3,000 psi @ 210° F | 0000000 | 00000 |
| 1 (0.133") | 3 to 36 (0.382") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 3,000 psi @ 210° F | 0000000 | 00000 |
| 1 (0.133") | 1 (0.382") | 1 1/16" | Seamless | 3,000 psi @ 72° F | 3,000 psi @ 210° F | 0000000 | 00000 |
| 1 1/4 (0.14") | 2 to 3 1/2 (0.435") | 1 1/4" | Seamless | 3,000 psi @ 72° F | 3,000 psi @ 210° F | 0000000 | 00000 |
| 1 1/4 (0.14") | 4 to 36 (0.435") | 1 1/4" | Seamless | 3,000 psi @ 72° F | 3,000 psi @ 210° F | 0000000 | 00000 |
| 1 1/2 (0.145") | 1 1/2 (0.445") | 1 5/16" | Seamless | 2,800 psi @ 72° F | 2,800 psi @ 210° F | 0000000 | 00000 |
| 1 1/2 (0.145") | 2 to 2 1/2 (0.445") | 1 5/16" | Seamless | 2,800 psi @ 72° F | 2,800 psi @ 210° F | 0000000 | 00000 |
| 1 1/2 (0.145") | 3 to 5 (0.445") | 1 5/16" | Seamless | 2,800 psi @ 72° F | 2,800 psi @ 210° F | 0000000 | 00000 |
| 2 (0.154") | 2 1/2 to 3 1/2 (0.467") | 1 1/2" | Seamless | 2,300 psi @ 72° F | 2,300 psi @ 210° F | 0000000 | 00000 |
| 2 (0.154") | 4 to 6 (0.467") | 1 1/2" | Seamless | 2,300 psi @ 72° F | 2,300 psi @ 210° F | 0000000 | 00000 |
| 2 (0.154") | 8 to 36 (0.467") | 1 1/2" | Seamless | 2,300 psi @ 72° F | 2,300 psi @ 210° F | 0000000 | 00000 |
| 2 (0.154") | 2 (0.467") | 1 1/2" | Seamless | 2,300 psi @ 72° F | 2,300 psi @ 210° F | 0000000 | 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.
Tee outlets allow you to create a tap anywhere along a pipe. They are also known as branch connectors and are comparable to Sockolet. To install, drill a hole in your pipe to match the fitting’s pipe size and weld in place.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Specifications Met: ASME B31.1, ASME B31.3, ASTM A105, MSS SP-97, ASME B16.9, ASME B16.11
- Pipe Nipples and Pipe: Use Schedule 80 steel
- Flanges: Use Class 300 and 600 steel
| Pipe Size | Dash Size | For Pipe Size | Ht. | Max. Pressure | Max. Steam Pressure | Material | Each | |
| 1/4 | 04 | 3/8 to 36 | 3/4" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 000000 |
| 3/8 | 06 | 3/8 to 1/2 | 7/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 3/8 | 06 | 3/4 to 36 | 7/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1/2 | 08 | 3/4 to 36 | 1" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 3/4 | 12 | 1 1/2 to 36 | 1 1/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 3/4 | 12 | 3/4 to 1 1/4 | 1 1/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1 | 16 | 1 1/4 to 2 1/2 | 1 3/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1 | 16 | 1 | 1 3/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1 | 16 | 3 to 36 | 1 3/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1 1/4 | 20 | 1 1/4 to 1 1/2 | 1 3/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1 1/4 | 20 | 2 to 3 1/2 | 1 3/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1 1/4 | 20 | 4 to 36 | 1 3/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1 1/2 | 24 | 6 to 36 | 1 3/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1 1/2 | 24 | 1 1/2 | 1 3/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1 1/2 | 24 | 2 to 2 1/2 | 1 3/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 1 1/2 | 24 | 3 to 5 | 1 3/8" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 2 | 32 | 4 to 6 | 1 1/2" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 00000000 | 00000 |
| 2 | 32 | 8 to 36 | 1 1/2" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 2 | 32 | 2 | 1 1/2" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
| 2 | 32 | 2 1/2 to 3 1/2 | 1 1/2" | 3,000 psi @ 72° F | 300 psi @ 360° F | Steel | 0000000 | 00000 |
Standard-Wall Plastic Pipe Fittings for Water
Connect these fittings to Schedule 40 plastic pipe–they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.
Fittings for drinking water meet NSF/ANSI Standard 61.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
To prevent leaks in threaded connections, apply a sealant to the male threads. For plastic threads, apply a non-hardening, plastic-compatible sealant. Tape or sealants with PTFE are not recommended for plastic-to-plastic connections. Fittings that meet ASTM D1784, ASTM D1785, and ASTM D4066 adhere to specifications and testing requirements for material quality.
Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
- Flanges: Use Schedule 40 PVC Plastic
Tee outlet adapters allow you to create additional outlets and connections in plastic pipe. Use a PVC primer and cement to secure the tee outlet into position, then drill a hole through the fitting and pipe. They are also known as branch connectors.
| Pipe Size | For Pipe Size | Material | Color | Each | |
NPT Threads | |||||
|---|---|---|---|---|---|
| 1/8 | 1/2 | PVC Plastic | White | 00000000 | 00000 |
| 1/8 | 3/4 | PVC Plastic | White | 00000000 | 0000 |
| 1/2 | 1/2 | PVC Plastic | White | 00000000 | 0000 |
| 1/2 | 1 | PVC Plastic | White | 00000000 | 0000 |
| 1/2 | 3/4 | PVC Plastic | White | 00000000 | 0000 |
| 3/4 | 1 | PVC Plastic | White | 00000000 | 0000 |
| 3/4 | 3/4 | PVC Plastic | White | 00000000 | 0000 |
| 1 | 1 | PVC Plastic | White | 00000000 | 0000 |