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Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
Low-Pressure Iron and Steel Threaded Pipe Fittings
Use these fittings for low-pressure applications in noncorrosive environments.
Plugs with External Square Drive
- For Use With:
NPT and BSPT: Air, Natural Gas, Oil, Steam, Water
NPTF: Air, Natural Gas, Steam, Water - Pressure Class:
NPT Iron: 125
BSPT Iron: 150 - Specifications Met:
See table - Pipe Nipples and Pipe:
NPT and BPST: Use Schedule 40 steel
Pipe Size | Plug Construction | Max. Pressure | Max. Steam Pressure | Material | Specifications Met | Each | |
NPT Male | |||||||
|---|---|---|---|---|---|---|---|
| 1/8 | Solid | Not Rated | Not Rated | Steel | ASME B1.20.1, SAE J531 | 44605K921 | 00000 |
| 1/4 | Solid | Not Rated | Not Rated | Steel | __ | 44605K222 | 000 |
| 3/8 | Solid | Not Rated | Not Rated | Steel | __ | 44605K223 | 000 |
| 1/2 | Solid | Not Rated | Not Rated | Steel | __ | 44605K224 | 000 |
| 3/4 | Solid | Not Rated | Not Rated | Steel | __ | 44605K225 | 0000 |
| 1 | Solid | Not Rated | Not Rated | Steel | __ | 44605K663 | 0000 |
| 1 1/4 | Solid | Not Rated | Not Rated | Steel | __ | 44605K664 | 0000 |
| 1 1/2 | Solid | Not Rated | Not Rated | Steel | __ | 44605K665 | 00000 |
| 2 | Solid | Not Rated | Not Rated | Steel | __ | 44605K666 | 00000 |
Medium-Pressure Stainless Steel Threaded Pipe Fittings
Choose these fittings when you want the same high-quality found in our low-pressure pipe fittings, but need more strength to handle higher pressures.
316 stainless steel fittings have excellent corrosion resistance.
Alloy 20 stainless steel fittings have the best corrosion resistance of all the stainless steel fittings we offer. Alloy 20 stainless steel is also known as Carpenter 20 and resists cracking from stress and corrosion.
Plugs with External Hex Drive
- For Use With: Air, Water, Steam
- Pressure Class: Not Rated
- Specifications Met: ASTM B366, ASME B16.9
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel