The Honeywell Home 2 Port Zone Valve 28 mm V4043H1106/U is a precision‑engineered motorised valve designed for domestic and light commercial heating systems. With a 28 mm compression connection, spring‑return action, auxiliary end switch to control boiler or pump circuits, and minimal power consumption for quieter operation, it’s the ideal upgrade to enhance system efficiency.
The Honeywell Home V4073A1088/U 28 mm Mid‑Position Mid‑Position Valve is a robust 28 mm motorised 3‑port valve built to manage flow in domestic central heating systems where both the radiator and hot‑water cylinder circuits are pumped. With compression connections, spring‑return action, manual lever for filling/draining and removable power‑head without system drain‑down, it’s designed to simplify installation and improve system performance.
The Honeywell V4073A1039 Mid‑Position Valve is a 22 mm compression three‑port motorised valve designed for conventional pumped central‑heating systems. It features a manual lever for filling/down‑filling, spring‑return operation, and a replaceable powerhead without system drainage, making it a reliable choice for installers seeking efficient flow‑diversion in Y‑Plan or S‑Plan configurations.