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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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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.
Fittings that meet ANSI/MSS SP-114 adhere to high-quality standards for heat treating, material thickness, and marking. 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.
For technical drawings and 3-D models, click on a part number.
Plugs with External Hex Drive
- For Use With: Air, Water, Steam
- Class: 150
- Specifications Met: ASTM B473, ANSI/ASME B1.20.1, ANSI/MSS SP-114, ASTM B351
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
Alloy 20 Stainless Steel | ||||
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| Pipe Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male | ||||
| 1/8 | Not Rated | Not Rated | 0000000 | 000000 |
| 1/4 | Not Rated | Not Rated | 0000000 | 00000 |
| 3/8 | Not Rated | Not Rated | 0000000 | 00000 |
| 1/2 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 00000 |
| 3/4 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 00000 |
| 1 | 300 psi @ 72° F | 150 psi @ 360° F | 0000000 | 00000 |
| 1 1/2 | Not Rated | Not Rated | 0000000 | 000000 |
| 2 | Not Rated | Not Rated | 0000000 | 000000 |