The Honeywell V4043 motorised two-port zone valve with a 22 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
• Potential free end switch for electrical control of pump and/or boiler
• Powerhead replaceable without draining down
• Quiet operation, minimal power consumption
• 22 mm compression connection
• Ambient temperature range from 5C to 50C
• 1 meter flying lead, head resistant cable
• Off in 6 seconds under spring return