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Honeywell V4073a 1088 28mm Mid Position Valve

Honeywell V4073a 1088 28mm Mid Position Valve

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Item Code: 310828
Expected Delivery:  1 - 2 working days
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Need Help?  0800 181 4488
Ex. VAT £141.60 Inc VAT

Additional Information

Brand Honeywell
KW Output No
Lead Time 1 - 2 working days
Valve Type 3 Port Valve
Connection Size 28mm
Unit Type Valve & Actuator
Manufacturer Part No: V4073A1088


Honeywell 3 Port Valve - 28mm V4073A1088

Motorised Diverter Valve

 The V4073A 3 Port Valve has been designed to control the flow of water in domestic central heating systems, where both radiator and hot water cylinder circuits are pumped. It is typically suited for small to medium sized installations.

The V4073A features a manual lever, which should normally be in the 'AUTO' position. This can, however, be changed to 'MAN OPEN' position for system draining and filling purposes.

The V4073A 3 Port Diverter Valve from Direct Heating Supplies should be used in conjunction with a room thermostat and cylinder thermostat to provide full temperature control of a conventional, fully pumped central heating installation. When used in this way, the control system is known as Sundial Y Plan and the components can be connected together using the Honeywell Sundial Plan Wiring Centre which has dedicated terminations and there is no need for a wiring diagram. 


  • Spring return action
  • Three position operation
  • Powerhead replaceable without draining down
  • Manual lever for filling/draining down
  • Quiet operation, minimal power consumption
  • Provides electrical output to boiler and/or pump
  • 28mm Compression Fittings