Our range of two and three port Honeywell zone valves is the premier valve used in the domestic central heating industry, as a flow control mechanism in domestic and light commercial heating systems. The V4043 series of 2 port Motorised Valves has a wide range of flow control applications in domestic and light commercial central heating systems. The V4043H normally closed models have end switches for electrical control of pump and/or boiler. The V4043B normally open model is particularly applicable to control of solid fuel systems, since it will always fail-safe in the event of a power failure. The V4043 series of two port Motorised Valves, as seen in this particular Honeywell zone valve, has a wide range of flow control applications in domestic and light commercial central heating systems. The V4043H normally closed models have end switches for electrical control of pump.

The V4043 series of 2 port Motorised Valves has a wide range of flow control applications in domestic and light commercial central heating systems. The V4043H normally closed models have end switches for electrical control of pump and/or boiler. The Honywell Motorised 2-way Zone Valve controls the flow of water in a wide range of central heating systems and is used in conjunction with a room thermostat and cylinder thermostat to give control of water and radiators.

The Honeywell 22mm Motorised Zone Valve is a normally closed two-port motorised zone valve, with end switch for electrical control of pump and/or boiler, Ø22mm compression connections. Honeywell 22mm Zone Valve V4043H1056. The V4043 series of two port Motorised Valves has a wide range of flow control applications in domestic and light commercial central heating systems. The V4043H normally closed models have end switches for electrical control of pump and/or boiler. The V4043B normally open model is particularly applicable to control of solid fuel systems, since it will always fail-safe in the event of a power failure. Honeywell 22mm 2 Port Zone Valve Features: All sizes of normally closed valve have a manual lever to facilitate filling and draining down and a 1 metre flying lead. The V4043B normally open model is particularly applicable to control of solid fuel systems, since it will always fail-safe in the event of a power failure)