Application The V4043 series of two port motorised valves has a wide range of flow control applications in domestic central heating systems. The V4043H normally closed models have end switches for electrical control of boiler and pump. The normally open model is particularly applicable to the control of solid fuel systems, since it will always fail-safe in the event of a power failure. V4043 valves are also suitable for light commercial applications.
Installation A zone valve must be positioned where it cannot block any vent or cold feed when closed. It may be plumbed in at any angle but must not be mounted so that the powerhead is below the horizontal level of the pipework. If fitted in a confined space, sufficient ventilation must be available to keep the valve within its ambient temperature range and access must be provided to remove the powerhead if necessary.
Normally same day dispatch
Hello - Have you got 2 no. Honeywell motorised valves their order reference V4043H1106 28mm fitting with normally closed valve. I have tried to order them on line but the only option is V4043H
Thank you for your enquiry - Please find product page link for the Honeywell 2 port valve V4043H1106 28mm which are a stock item, these valves are closed in their de-energised state.