Measure the threaded ends of your fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
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 Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: See table
Fittings with flange end bolt to equipment or another same-size flange to create an access point within a line.
| Copper Tube Size | For Tube OD | Flange OD | Bolt Circle Dia. | Number of Bolt Holes | Bolt Hole Diameter | For Bolt Diameter | Bolts Included | Material | Max. Pressure | Specifications Met | Each | |
| 1 | 1 1/8" | 4 1/4" | 3 1/8" | 4 | 5/8" | 1/2" | No | Brass | 400 psi @ 72° F | ASME B16.18, NSF/ANSI 61 | 5520K123 | 000000 |
| 1 1/4 | 1 3/8" | 4 5/8" | 3 1/2" | 4 | 5/8" | 1/2" | No | Brass | 400 psi @ 72° F | ASME B16.18, NSF/ANSI 61 | 5520K124 | 000000 |
| 1 1/2 | 1 5/8" | 5" | 3 7/8" | 4 | 5/8" | 1/2" | No | Brass | 400 psi @ 72° F | ASME B16.18, NSF/ANSI 61 | 5520K125 | 000000 |
| 2 | 2 1/8" | 6" | 4 3/4" | 4 | 3/4" | 5/8" | No | Brass | 300 psi @ 72° F | ASME B16.18, NSF/ANSI 61 | 5520K126 | 000000 |

- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: See table
Union connectors separate into three pieces for easy access to your line.

- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.18, NSF/ANSI 61

- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.18, NSF/ANSI 61

























