Brass transition coupling TECE 20 mm x 1/2" for plumbing connections

TECE brass transition coupling 20 mm x 1/2" provides a compact, reliable solution for connecting 20 mm pipework to standard 1/2" threaded fittings. Manufactured from solid brass, the coupling is designed for plumbing applications where a secure pipe-to-thread transition is required. It is suitable for potable water installations and general plumbing systems, and is commonly used in repairs, replacements and new-build projects where compatibility between metric pipe sizes and imperial threaded components is needed.

Advantages

The solid brass construction offers corrosion resistance and mechanical durability for long service life in typical plumbing environments. Its precise threading and dimensional accuracy ensure a tight, leak-resistant connection when installed following standard plumbing practices. The coupling’s compact form factor allows installation in confined spaces and simplifies transitions between 20 mm piping and 1/2" threaded fixtures without additional adapters.

Suitable for

• Connecting 20 mm plastic or metal pipes to 1/2" threaded fittings
• Potable water supply lines in residential and commercial buildings
• Repair or replacement of existing pipe-to-thread joints
• New plumbing installations requiring metric-to-imperial transitions

Key specifications

• Material: solid brass for corrosion resistance
• Pipe side connection: 20 mm outer diameter
• Threaded side: 1/2" standard male/female threaded fitting (imperial)
• Application: potable water and general plumbing use
• Design: compact transition coupling for pipe-to-thread connections

How to use

Prepare the 20 mm pipe by cutting squarely and deburring the end to ensure a smooth fit. Threaded fittings should be clean and free of old sealant or debris. Install the coupling by engaging the 1/2" thread to the mating component and tightening to the recommended torque for the fitting material; use appropriate sealing method (PTFE tape or approved pipe sealant) on the threaded side if required by local plumbing practice. Verify alignment and then test the joint under working pressure to confirm leak-tightness.

Usage recommendations

Use certified sealing materials and follow local plumbing codes. For installations exposed to aggressive environments or dissimilar metal contacts, consider appropriate measures such as dielectric fittings or additional corrosion protection. Periodically inspect connections during routine maintenance to ensure ongoing integrity.