The Honeywell V4043 motorised two-port zone valve with a 28 mm compression connection is designed for a variety of flow control applications in domestic and light commercial central heating systems. This valve can be plumbed at any angle, but the powerhead should not be below the horizontal level of the pipework. It is also positioned where it cannot block any vent or cold feed when closed.

• Motor open with spring return action
• Manual lever for filling and draining the system
• Powerhead replaceable without draining down
• Potential free end switch for electrical control of pump or boiler
• Quiet operation, minimal power consumption
• 1 meter flying lead, head resistant cable requiring a 230 V AC power supply
• Ambient temperature range from 5C to 50C