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Optimum 22mm 2 Port Motorised Zone Valve


Quick Overview

2 port spring return zone valve with 22mm compression fittings and an auxiliary switch. This is for general purpose flow control applications for central heating systems.


When correctly wired with an appropriate room thermostat, cylinder thermostat and programmer the valve will control the water flow from the boiler to hot water and from boiler to central heating.


Barcode 5028415000946
Technical Details


  • Supply voltage 240V AC 50Hz 
  • Switch rating 3 Amp 
  • Power consumption: 6W 
  • Operating temperature range: +5 to +88°C 
  • Industry standard cable colours 
  • Cable length 1 metre 
  • Max. differential pressure for 22mm = 1Bar 
  • Max. static pressure 10.0Bar 
  • Max. fluid temperature 100°C 
  • Max. ambient temperature 52°C 


  • Brown - live 
  • Orange - end switch out 
  • Grey - end switch in 
  • Blue - neutral 
  • Green & Yellow - earth
Size 22mm
Fitting Type Compression Brass


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This product appears in the following categories:  Underfloor Heating Accessories Valves

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