• Manual lever for filling/draining system.
  
• End switch for electrical control of pump and boiler.
  
• Powerhead replaceable without draining down.
  
• Motor changeable without replacing whole powerhead.
  
• Quiet operation, minimal power consumption.
  
• High close off rating.
• V4043H Product Brochure

Application

The V4043 series of two port motorised valves has a wide range
of flow control applications in domestic central heating systems.
The V4043H normally closed models have end switches for
electrical control of boiler and pump. The normally open model is
particularly applicable to the control of solid fuel systems, since it
will always fail-safe in the event of a power failure.
V4043 valves are also suitable for light commercial applications.

Installation

A zone valve must be positioned
where it cannot block any vent or cold
feed when closed. It may be plumbed
in at any angle but must not be
mounted so that the powerhead is
below the horizontal level of the
pipework.
If fitted in a confined space, sufficient
ventilation must be available to keep
the valve within its ambient
temperature range and access must
be provided to remove the powerhead
if necessary.