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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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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 | Max. Steam Pressure | Material | Each | |
BSPT Female | |||||
|---|---|---|---|---|---|
| 1/8 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
| 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 0000 |
| 3/8 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 0000 |
| 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 | 00000 |
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
Vibration-Resistant Water Hose with Solder-Connect Tube Fittings
- Temperature Range: -420° to 450° F
- Maximum Vacuum: 29" of Hg @ 72° F
- Material: Bronze
Flexible braided construction allows this hose to absorb vibration to reduce wear on equipment. To make a connection, insert the end of a tube fitting into the copper tube on the ends of this hose and solder together for a permanent connection. Hose is bronze, which is compatible with copper and offers good corrosion resistance. Copper tube size is the accepted designation of the copper tube industry, not the actual tube OD.
For technical drawings and 3-D models, click on a part number.
| Copper Tube Size | Tube OD | ID | OD | Bend Radius | Max. Pressure | Lg. | Specifications Met | Each | |
Copper Solder-Connect Female Tube | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| __ | 1/4" × 1/4" | 1/4" | 1/2" | 5 1/2" | 450 psi @ 72° F | 7 1/2" | UL Recognized Component, C-UL Recognized Component | 0000000 | 000000 |
| 1/4 × 1/4 | 3/8" × 3/8" | 3/8" | 3/4" | 6" | 450 psi @ 72° F | 8 1/4" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
| 3/8 × 3/8 | 1/2" × 1/2" | 3/8" | 3/4" | 6" | 450 psi @ 72° F | 9" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
| 1/2 × 1/2 | 5/8" × 5/8" | 1/2" | 7/8" | 7" | 450 psi @ 72° F | 9 3/4" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
| 5/8 × 5/8 | 3/4" × 3/4" | 1/2" | 7/8" | 7" | 450 psi @ 72° F | 10" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
| 5/8 × 5/8 | 3/4" × 3/4" | 3/4" | 1 1/8" | 8" | 440 psi @ 72° F | 11 1/4" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
| 3/4 × 3/4 | 7/8" × 7/8" | 3/4" | 1 1/8" | 8" | 440 psi @ 72° F | 11 1/2" | UL Recognized Component, C-UL Recognized Component | 0000000 | 00000 |
| 1 × 1 | 1 1/8" × 1 1/8" | 1" | 1 3/8" | 10" | 400 psi @ 72° F | 13" | UL Recognized Component, C-UL Recognized Component | 0000000 | 000000 |
| 1 1/4 × 1 1/4 | 1 3/8" × 1 3/8" | 1 1/4" | 1 7/8" | 12" | 480 psi @ 72° F | 14 3/4" | UL Recognized Component, C-UL Recognized Component | 0000000 | 000000 |
| 1 1/2 × 1 1/2 | 1 5/8" × 1 5/8" | 1 1/2" | 2 1/4" | 13 1/2" | 420 psi @ 72° F | 17" | UL Recognized Component, C-UL Recognized Component | 0000000 | 000000 |
| 2 × 2 | 2 1/8" × 2 1/8" | 2" | 2 1/2" | 17" | 190 psi @ 72° F | 20" | __ | 0000000 | 000000 |