Varioterm connector/adapter GW 3/4" x 15 x 1 black (cu) ZZM1514

Varioterm connector/adapter GW 3/4" x 15 x 1 in black (cu) ZZM1514 is a plumbing fitting designed to create a secure transition between a G 3/4" threaded connection and a 15 mm copper pipe with a 1 mm wall thickness. Intended for use with heating systems, water supply lines and radiator connections, the adapter enables a reliable mechanical joint between threaded fixtures and copper tubing. The black finish is applied to the copper body to provide surface protection and a consistent appearance in visible installations.

Advantages

The adapter provides a compact solution for converting from a standard G 3/4" threaded outlet to a 15×1 copper pipe, reducing the need for additional fittings. Its copper construction ensures good thermal conductivity and corrosion resistance appropriate for potable water and heating circuits. The black surface finish improves scratch resistance and offers a uniform look when installed on radiators or piping runs.

Suitable for

• Connecting radiators or valves with G 3/4" male/female threads to 15×1 copper tubing
• Heating system installations and repairs
• Domestic cold and hot water supply lines where a threaded-to-copper transition is needed
• Replacement of worn or damaged fittings in existing plumbing networks

Key specifications

• Connection types: G 3/4" threaded to 15 mm copper pipe
• Copper material with black surface finish
• Pipe wall compatibility: 1 mm
• Application: heating, water supply, radiator connections
• Mechanical adapter type for soldering or compression installation methods depending on system

How to use

Prepare the copper pipe end by cutting square and deburring to ensure a tight fit. Depending on the installation method, the adapter can be soldered or used with suitable compression fittings or sealants on the G 3/4" thread. Hand-tighten first, then secure to the manufacturer-recommended torque using appropriate tools to avoid damaging the threads or pipe. Verify sealing integrity by pressurising the system and checking for leaks at the joint.

Usage recommendations

Use appropriate thread sealant or PTFE tape on the G 3/4" connection where required by local plumbing codes. Ensure compatibility of soldering fluxes and sealants with copper and the black finish. Follow system pressure and temperature ratings for copper piping and components, and perform leak tests after installation.