The Honeywell V4043B 28mm 2 Port Valve has a wide range of flow control applications in domestic and light commercial central heating systems. 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.
- Motor open
- Spring return action
- Manual lever for filling & draining the system
- Powerhead replaceable without draining down
- Potential free end switch for electrical control of pump and/or boiler
- Quiet operation, minimal power consumption
