Tag: 22mm

A compact 22mm two‑port motorised valve with a low‑power synchronous actuator, spring‑return fail‑safe and an auxiliary end‑switch. Suitable for most fully‑pumped domestic heating zones where simple on/off control and boiler interlock are needed — but not the right fit for systems demanding modulating control, high flow differentials or heavy electrical switching.

A compact, passive air separator intended for 22mm copper open‑vented central‑heating systems. This review explains where it fits, who will benefit, installation and compatibility realities, and the practical trade‑offs to consider before buying.