John Guest - Female Thread Adaptor - 20mm X 1/2"

This adaptor is designed to connect with 20mm MDPE (Medium-Density Polyethylene) pipe.

The adaptor features a 1/2 inch female thread, compatible with standard 1/2 inch BSP male threaded fittings.

No, this adaptor is specifically designed and certified for use in potable water systems only. It is not suitable for gas lines.

No special tools are required for the push-fit connection. A pipe cutter (for a clean end) and potentially a wrench for the threaded connection are usually sufficient.

Ensure the 20mm MDPE pipe is cut squarely and inserted fully into the push-fit end. For the threaded connection, use appropriate PTFE tape or sealant on the male thread and tighten securely.

The adaptor is constructed from corrosion-resistant materials suitable for potable water systems.

This particular product is supplied in a pack of 25 units.

Ensure the pipe is fully inserted into the push-fit connector. Check the pipe end for damage or a non-square cut. Remove the pipe, re-cut if necessary, and re-insert firmly.

Verify that PTFE tape or pipe sealant was used on the male thread. Ensure the male thread is clean and undamaged. Tighten the connection slightly more, ensuring not to overtighten.

Ensure the pipe is the correct diameter (20mm MDPE) and that the end is clean, square, and free from burrs. A slight twisting motion may help during insertion.

While designed for corrosion resistance, prolonged exposure to aggressive water conditions can cause surface changes. Inspect for any signs of material degradation. If performance is affected, replace the unit.