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Connection Style Connection Style |
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| Socket Connect |
For Use With For Use With |
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For Pipe Material For Pipe Material | Show |
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Socket Connect Type Socket Connect Type |
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Shape Shape |
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 | Straight |
System of Measurement System of Measurement |
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Gender Gender |
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For Tube Material For Tube Material |
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Body Shape Body Shape |
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Maximum Temperature Maximum Temperature |
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Maximum Pressure Maximum Pressure |
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Gasket Material Gasket Material |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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 Pipe Fittings for Joining Dissimilar Metals
Use these unions to connect different metals in a piping or plumbing system. They have a plastic sleeve that inhibits destructive corrosion. Use them for connections that must be electrically insulated. Unions separate into three pieces for access to your line.
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.
Union Straight Connectors
Exploded View
- For Use With: Air, Water, Oil, Natural Gas
- Max.Temperature: 180° F
Iron × Galvanized Iron | Iron × Brass | ||||
|---|---|---|---|---|---|
| Pipe Size  | Max. Pressure | Each | Each | ||
NPT Female | |||||
| 1/2 | 250 psi @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
| 3/4 | 250 psi @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 1 | 250 psi @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 1 1/4 | 250 psi @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 1 1/2 | 250 psi @ 72° F | 0000000 | 00000 | 0000000 | 000000 |
| 2 | 250 psi @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
Union Straight Socket-Connect Adapters
Exploded View
- For Use With: Air, Water, Oil, Natural Gas
- Max.Temperature: 180° F
Iron × Copper | |||||
|---|---|---|---|---|---|
| Pipe Size | Copper Tube Size | For Tube OD | Max. Pressure | Each | |
NPT Female × Socket Connect Female | |||||
| 1/2 | 1/2 | 5/8" | 250 psi @ 72° F | 000000 | 000000 |
| 3/4 | 1/2 | 5/8" | 250 psi @ 72° F | 000000 | 00000 |
| 3/4 | 3/4 | 7/8" | 250 psi @ 72° F | 000000 | 00000 |
| 1 | 1 | 1 1/8" | 250 psi @ 72° F | 000000 | 00000 |
| 1 | 3/4 | 7/8" | 250 psi @ 72° F | 000000 | 00000 |
| 1 1/4 | 1 1/4 | 1 3/8" | 250 psi @ 72° F | 000000 | 00000 |
| 1 1/2 | 1 1/2 | 1 5/8" | 250 psi @ 72° F | 000000 | 00000 |
| 2 | 2 | 2 1/8" | 250 psi @ 72° F | 000000 | 000000 |