Compression straight coupling Comap 20 mm x 1/2" external thread (9460514-02)

Compression straight coupling Comap 20 mm x 1/2" external thread is a compact connector for joining a 20 mm plastic or metal pipe to a fitting with a 1/2" male thread. Manufactured by Comap, this coupling provides a mechanical compression seal that is suitable for potable water and heating circuits where a secure threaded transition and minimal footprint are required.

Advantages

The coupling offers a straightforward installation method without the need for soldering or adhesives, relying on a compression ring to form a tight seal. Its compact straight profile reduces space requirements and simplifies connections between pipework and threaded valves or fixtures. Designed for systems carrying potable water and heating media, the component delivers reliable mechanical performance and repeatable connections when installed according to guidelines.

Suitable for

• Connecting 20 mm supply or return pipes to 1/2" threaded valves or fixtures
• Potable water distribution in residential and commercial buildings
• Heating circuits where a compact threaded transition is required
• Repair or retrofit work replacing unions or adapting existing threaded fittings

Key specifications

• Pipe connection: 20 mm compression for plastic or metal tubing
• Thread type: external 1/2" (male) thread compatible with standard 1/2" fittings
• Function: straight coupling providing a mechanical compression seal
• Application: potable water and heating systems
• Design: compact straight profile for limited-space installations

How to use

Prepare the 20 mm pipe by cutting squarely and removing burrs. Slide the nut and compression ring onto the pipe, insert the pipe end fully into the coupling body, then tighten the nut by hand and finish with an appropriate wrench until the compression ring is compressed to create a leak-free joint. Thread the external 1/2" end into the corresponding female fitting and tighten to the recommended torque for the system. Follow standard plumbing practice to verify alignment and to avoid over-tightening, which can damage threads or deform the pipe.

Usage recommendations

Use with compatible tubing materials and ensure pipe ends are clean and deburred before assembly. For potable water applications, use only with materials approved for drinking water. Check for leaks after initial filling and pressurization, and re-check connections after the system reaches operating temperature.