Compression fitting PEX to M22 1.5, Varioterm model VRM766B002006, 16/2 mm, white

Varioterm compression fitting VRM766B002006 is a white PEX-to-thread adapter designed to connect 16/2 mm cross-linked polyethylene (PEX) tubing to M22×1.5 threaded valves. The fitting provides a sealed mechanical joint suitable for heating and plumbing systems and is intended for use with common radiator valve types such as INTEGRA and VISION. It is appropriate for both retrofit work and new installations where PEX piping must interface with M22 valve fittings.

Advantages

The compression design ensures a secure, leak-resistant connection without the need for soldering or specialized tools beyond standard compression installation equipment. Its white finish provides a neutral appearance that integrates with most valve bodies and radiator installations. The fitting is made to match the dimensions of 16/2 mm PEX tubing and M22×1.5 threaded valves, offering straightforward assembly and consistent mechanical performance in typical domestic and commercial heating applications.

Suitable for

• Connecting 16/2 mm PEX tubing to M22×1.5 radiator valves
• Retrofitting existing radiator valves to PEX piping
• New heating or plumbing installations using PEX distribution
• Domestic and light commercial central heating systems

Key specifications

• Pipe compatibility: PEX, 16/2 mm nominal size
• Thread type: M22×1.5 male/female interface for radiator valves
• Connection type: compression fitting for mechanical sealing
• Finish/color: white
• Intended application: heating and plumbing radiator valve connections

How to use

Ensure the PEX tubing is cut square and free of debris. Slide the compression nut and olive (if supplied) onto the pipe, insert the pipe fully into the fitting until it seats against the stop, then hand-tighten the compression nut onto the valve thread. Final tightening should be performed with appropriate wrenches to the manufacturer's recommended torque or until a secure, leak-free joint is achieved. After installation, pressurize and inspect the system for leaks following standard commissioning procedures.

Usage recommendations

Use compatible INTEGRA or VISION-type radiator valves and follow PEX manufacturer's installation guidelines. Do not overtighten threads to avoid damaging the compression components; verify compatibility with the specific PEX wall thickness and local plumbing codes before installation.