Optimum 22 mm Motorised 2‑Port Zone Valve – 5‑Wire Control for Boilers
Designed for residential and light‑commercial heating systems, this genuine Optimum zone valve delivers reliable flow control between your boiler, hot‑water cylinder and central‑heating circuit. The 22 mm compression fittings make pipework connections quick and leak‑free, while the built‑in auxiliary switch and 5‑wire wiring (Live, Neutral, Earth + two end‑switch leads) let you integrate a room thermostat, cylinder thermostat and programmer with ease.
Key features
– 2‑port spring‑return design – the valve automatically returns to the closed position when power is removed.
– Synchronous motor drive – smooth operation with a low 6 W power draw (220‑240 V AC, 50 Hz).
– Integrated manual lever – perfect for commissioning, filling or draining the system.
– Robust construction – rated for up to 1 Bar differential pressure, 10 Bar static pressure and fluid temperatures up to 100 °C.
– Included accessories – 1 m control cable, compression fittings and full installation instructions.
Technical snapshot
| Specification | Value |
|---|---|
| Supply voltage | 220‑240 V AC |
| Power consumption | 6 W |
| Operating temperature | +5 °C to +88 °C |
| Max. differential pressure | ≤ 1 Bar |
| Max. static pressure | 10 Bar |
| Max. fluid temperature | 100 °C |
| Cable length | 1 m |
| Switch rating | 3 A resistive |
All wiring must follow IEE regulations and be performed by a qualified electrician. The valve arrives boxed and ready for installation, offering a dependable solution for precise boiler water flow management in modern heating setups.





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