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 Brass and Bronze Threaded Pipe Fittings
Use these fittings in low-pressure flow applications. They have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.

- For Use With:
NPT: Air, Drinking Water, Natural Gas, Oil
BSPT: Air, Natural Gas, Oil, Steam, Water - Pressure Class: 125
- Specifications Met:
NPT: ASME B1.20.1, ASME B16.15, NSF/ANSI 61
BSPT: ASME B16.15, ASME BS21, ASTM B584 - Pipe Nipples and Pipe: Use Schedule 40 brass
- Flanges:
NPT: Use Class 150 brass
BSPT: Use Class 150 bronze
Pipe Size | Max. Pressure | Maximum Steam Pressure | Material | Each | |
BSPT Female | |||||
---|---|---|---|---|---|
1/8 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 000000 |
1/4 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
3/8 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
1/2 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
3/4 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
1 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
1 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
1 1/2 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
2 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 000000 |
Bronze Unthreaded Pipe Fittings

Snap a brazing ring (sold separately) into these fittings and braze them to unthreaded pipe for a strong, leak-resistant connection. Fittings are also known as Silbraze fittings. They are bronze, which is compatible with brass and has good corrosion resistance.
For technical drawings and 3-D models, click on a part number.

- For Use With: Air, Oil, Steam, Water, Natural Gas
- Specifications Met: MIL-F-1183
- Pipe Nipples and Pipe: Use Schedule 40 brass
Fittings | Brazing Rings | |||||
---|---|---|---|---|---|---|
Pipe Size | Max. Pressure | Max. Steam Pressure | Each | Each | ||
1/2 | 200 psi @ 72° F | 200 psi @ 425° F | 0000000 | 000000 | 0000000 | 00000 |
3/4 | 200 psi @ 72° F | 200 psi @ 425° F | 0000000 | 00000 | 0000000 | 0000 |
1 | 200 psi @ 72° F | 200 psi @ 425° F | 0000000 | 00000 | 0000000 | 0000 |
1 1/2 | 200 psi @ 72° F | 200 psi @ 425° F | 0000000 | 000000 | 0000000 | 0000 |
2 | 200 psi @ 72° F | 200 psi @ 425° F | 0000000 | 000000 | 0000000 | 0000 |
Press-Connect Fittings for Copper Tubing

- For Use With: Drinking Water
- Maximum Pressure: 200psi @ 72° F
- Temperature Range: 0° to 250° F
- Tubing: Use with K, M, L copper
- Specifications Met: See table
Crimp these fittings to copper tubing with a crimping tool (sold separately). An O-ring on the inside of the fitting creates a leak-tight connection that doesn’t require heat or soldering. They are comparable to Viega ProPress fittings. Fittings have good corrosion resistance. They meet NSF/ANSI safety standards for use with drinking water systems.
Inline tees are also known as branch tees. Right-angle tees are also known as run tees. Use inline and right-angle tee adapters to add lines or components, such as gauges, without additional fittings.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.
For technical drawings and 3-D models, click on a part number.

Copper Tube Size | For Tube OD | Pipe Size | Material | Specifications Met | Each | |
NPT Threads | ||||||
---|---|---|---|---|---|---|
1/2 | 5/8" | 1/2 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 000000 |
3/4 | 7/8" | 1/4 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
3/4 | 7/8" | 1/2 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
3/4 | 7/8" | 3/4 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
1 | 1 1/8" | 1/2 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
1 | 1 1/8" | 3/4 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
1 1/4 | 1 3/8" | 1/2 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
1 1/4 | 1 3/8" | 3/4 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
1 1/2 | 1 5/8" | 1/2 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
1 1/2 | 1 5/8" | 3/4 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
2 | 2 1/8" | 1/2 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
2 | 2 1/8" | 3/4 | Bronze | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |