Conex coupling 22 x 1" bronze for soldered and threaded connections (MPN 4270G022008000)

Conex coupling 22 x 1" bronze for soldered and threaded connections is a metal plumbing fitting engineered to join a 22 mm soldered copper line to a 1" threaded pipe or fitting. The coupling is manufactured from bronze to provide corrosion resistance and mechanical strength in water distribution and heating systems. It is intended for use where a transition between soldered and threaded connections is required, offering a compact solution that maintains flow integrity and mechanical stability in both domestic and commercial installations.

Advantages

The bronze construction offers improved resistance to corrosion compared with some other non-ferrous alloys, supporting long service life in potable water and heating applications. The coupling is designed to accommodate both soldered joints and a standard threaded connection, simplifying repairs and modifications where mixed connection types are present. Its compact form factor saves space and allows straightforward installation in confined plumbing layouts while maintaining a reliable seal when installed correctly.

Suitable for

• Joining 22 mm soldered copper pipe to a 1" threaded fitting or pipe
• Domestic and commercial water supply systems
• Repair work and retrofitting of mixed pipe networks
• Heating circuits and radiator connections requiring a transition between soldered and threaded elements

Key specifications

• Material: bronze
• Connection 1: 22 mm soldered (cup/insert for soldering)
• Connection 2: 1" threaded female/male as specified for compatibility with standard pipe threads
• Application: water distribution and heating systems
• Operating environment: potable water, central heating

How to use

Prepare the 22 mm copper pipe by cutting square, deburring, and cleaning the joint area before soldering. Fit the pipe into the solder cup of the coupling, apply appropriate flux, and carry out a qualified soldering (brazing or soft soldering) procedure following local codes and safety practices. For the threaded end, ensure proper thread sealant or tape is applied to the male thread before tightening to achieve a leak-free connection. Verify compatibility between thread types and tighten to recommended torque values to avoid damage to threads or deformation of the coupling.

Usage recommendations

Use approved soldering techniques and suitable flux for copper-to-bronze joints; ensure the threaded connection is sealed with appropriate thread sealant for potable water if required by local regulations. Inspect joints after installation and pressure-test the system according to applicable standards.