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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Solder-Connect Fittings for Copper Tubing
- Temperature Range: 32° to 200° F
Solder these fittings to copper tubing or the tube end of another fitting for a permanent, leak-tight connection. They are also known as sweat fittings. Fittings have good corrosion resistance. To adhere to safety standards for drinking water systems, use fittings that meet NSF/ANSI 61 or EN 1057.
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.

- For Use With: Drinking Water
- Tubing: See table
- Specifications Met: See table
Fittings that meet ASTM B379 comply with international standards for tube fitting specifications.
Copper Tube Size | For Tube OD | Material | Max. Pressure | For Copper Tube Type | Specifications Met | Each | |
1/8 | 1/4" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 00000 |
1/4 | 3/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 000 |
3/8 | 1/2" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 0000 |
1/2 | 5/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 000 |
5/8 | 3/4" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 0000 |
3/4 | 7/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 000 |
1 | 1 1/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 0000 |
1 1/4 | 1 3/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 0000 |
1 1/2 | 1 5/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 0000 |
2 | 2 1/8" | Copper | 300 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 0000 |
2 1/2 | 2 5/8" | Copper | 300 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 00000 |
3 | 3 1/8" | Copper | 300 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 00000 |
3 1/2 | 3 5/8" | Copper | 300 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 00000 |
4 | 4 1/8" | Copper | 200 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 00000 |
5 | 5 1/8" | Copper | 200 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 000000 |
6 | 6 1/8" | Copper | 200 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 000000 |
__ | 10mm | Copper | 800 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 0000 |
__ | 12mm | Copper | 700 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 0000 |
__ | 14mm | Copper | 600 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 0000 |

- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61
Press-Connect Fittings for Copper Tubing

- For Use With: Drinking Water
- Maximum Pressure: Fittings compatible with Viega ProPress or Viega ProPress XL-C: 200 psi @ 72° F
Fittings compatible with Viega Pex or Viega PureFlow Press: 100 psi @ 72° F - Temperature Range: 0° to 250° F
- Tubing: Fittings compatible with Viega ProPress or Viega ProPress XL-C: Use with K, M, L copper
Fittings compatible with Viega Pex or Viega PureFlow Press: Use with hard polyethylene plastic - 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.
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 | Lg. | Material | Compatible With | Specifications Met | Each | |
1/2 | 5/8" | 59/64" | Copper | Viega ProPress | ASME B16.51, NSF/ANSI 61, UL 213 | 0000000 | 00000 |
3/4 | 7/8" | 1 1/16" | Copper | Viega ProPress | ASME B16.51, NSF/ANSI 61, UL 213 | 0000000 | 00000 |
1 | 1 1/8" | 1 7/64" | Copper | Viega ProPress | ASME B16.51, NSF/ANSI 61, UL 213 | 0000000 | 00000 |
1 1/4 | 1 3/8" | 1 5/16" | Copper | Viega ProPress | 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 5/8" | Copper | Viega ProPress | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
2 | 2 1/8" | 1 13/16" | Copper | Viega ProPress | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 00000 |
2 1/2 | 2 5/8" | 2 7/64" | Copper | Viega ProPress XL-C | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 000000 |
3 | 3 1/8" | 2 23/64" | Copper | Viega ProPress XL-C | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 000000 |
4 | 4 1/8" | 2 49/64" | Copper | Viega ProPress XL-C | ASME B16.51, ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, UL 213 | 00000000 | 000000 |

For Copper Tube Size | For Tube OD | O-Ring Material | Compatible With | Each | |
1/2 | 5/8" | EPDM Rubber | Viega ProPress | 0000000 | 00000 |
3/4 | 7/8" | EPDM Rubber | Viega ProPress | 0000000 | 0000 |
1 | 1 1/8" | EPDM Rubber | Viega ProPress | 0000000 | 0000 |
1 1/4 | 1 3/8" | EPDM Rubber | Viega ProPress | 00000000 | 0000 |
1 1/2 | 1 5/8" | EPDM Rubber | Viega ProPress | 00000000 | 0000 |
2 | 2 1/8" | EPDM Rubber | Viega ProPress | 00000000 | 0000 |

Jaws for copper tube sizes ½ to 2 fit directly into the included crimping tool.
Battery | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Copper Tube Size | For Tube OD | Voltage | No. Included | Cap., amp-hrs. | Battery Charger Included | Battery Charging Time, min. | Compatible With | Specifications Met | Each | |
1/2, 3/4, 1, 1 1/4, 1 1/2, 2 | 5/8", 7/8", 1 1/8", 1 3/8", 1 5/8", 2 1/8" | 18V DC | 2 | 3 | Yes | 39 | Viega ProPress | EMC 2011/65/EU, EMC 2014/30/EU, IEC 62841-1, UL 62841-1 | 00000000 | 000000000 |

Rings for copper tube sizes 2 ½ to 4 include a jaw actuator. Clip the rings around the fitting and use the jaw actuator and crimping tool (sold separately) to press the open ends together.
For Copper Tube Size | For Tube OD | Includes | Compatible With | Each | |
2 1/2, 3, 4 | 2 5/8", 3 1/8", 4 1/8" | Three Rings (2 1/2-4 Copper Tube Size) One Ring Actuator Jaw | Viega ProPress XL-C | 00000000 | 000000000 |
Wraparound Bench Vise Jaw Liners

Fold the pliable tabs over vise jaws to protect workpieces from marring.
Copper liners resist weld spatter.