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Honeywell Home V4043B1265/U 28mm Normally Open 2-Port Motorised Zone Valve


3 in stock

Honeywell Home V4043B1265/U 28mm 2-Port Normally Open Motorised Zone Valve box contents:

  • 1x V4043B1265/U 28mm 2-Port Motorised Zone Valve (Normally Open)
  • 1x V4043B Series Installation Guide

The Honeywell Home V4043 series of two port motorised zone valves 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 (open) in the event of a power failure.


  • Motor powered closed
  • Spring action open
  • Powerhead replaceable without draining down
  • Quiet operation, minimal power consumption


  • Normally open & normally closed versions available
  • 22mm/28mm or 1/2″, 3/4″, 1″ BSP connections
  • Replacement motor
  • Replacement powerhead
  • Replacement ball and O ring kit


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