Reducer coupling Conex series 5000 28 x 22 mm

Conex reducer coupling series 5000 28 x 22 mm is a plumbing fitting designed to join pipes with different diameters, providing a reliable mechanical and fluid-tight connection. Intended for use where a 28 mm line must be stepped down to 22 mm, this coupling is suitable for potable water and heating system installations. The fitting supports standard soldered or press-fit installation methods depending on the specific system and material compatibility.

Advantages

The reducer coupling delivers a compact transition between 28 mm and 22 mm pipes while maintaining flow integrity and minimizing turbulence. Manufactured to Conex series 5000 standards, it offers consistent dimensional accuracy for predictable assembly and leak-resistant joints when installed correctly. Its design enables straightforward integration into existing plumbing runs and supports common joining techniques used in residential and commercial systems.

Suitable for (tasks / use cases)

• Reducing a 28 mm water supply pipe to 22 mm in potable water systems
• Connecting supply lines in central heating and radiator circuits
• Adapting pipework where space constraints require a smaller downstream diameter
• Retrofit and repair work where a direct diameter transition is needed

Key specifications

• Type: reducer coupling for pipe diameter transition
• Material: conforms to Conex series 5000 material and manufacturing standards
• Inlet diameter: 28 mm
• Outlet diameter: 22 mm
• Application: potable water and heating systems
• Joining methods: suitable for soldered or press-fit installation depending on system

How to use

Prepare the pipes by cutting square and removing burrs, then clean and flux the surfaces if soldering. Position the reducer coupling onto the 28 mm and 22 mm pipe ends, ensuring full insertion to the marked stop or shoulder. For soldered joints, heat uniformly until solder flows and creates a continuous fillet. For press-fit systems, follow the press-fit tool manufacturer’s instructions to achieve a secure mechanical seal. After joining, visually inspect the joint and conduct a pressure or leak test in accordance with local plumbing codes.

Usage recommendations

Use the reducer coupling only with compatible pipe materials and approved joining methods. Follow local regulations and manufacturer guidelines for potable water and heating installations. Perform pressure testing after installation and avoid exposing the fitting to chemicals or conditions outside the specified service limits.