The John Guest push-fit acetal service valve (metric) is designed to temporarily isolate the hot or cold water supply to a drinks dispense fixture or fitting. The integrated ball valve is operated with a simple ¼-turn screwdriver slot and is suitable for both hot and cold water applications.

Quick and easy to install, John Guest valves provide an instant push-fit connection and a leak-tight seal—without the need for tools, heat, or sealing compounds. The unique collet locking mechanism ensures the pipe is held securely in place without deformation or flow restriction.

Corrosion resistant and fully demountable, these valves enhance system performance and help reduce downtime during maintenance. All John Guest fittings are proudly manufactured and assembled in the UK.