1. 

   Peter Webb New Member

   I need to replace a 2 port valve currently on a HW system, the current valve is a 28mm Sunvic SM4203, this is a motor on/motor off valve, I need a replacement motor on/motor off valve with a 22mm base, can anyone suggest a replacement that meets my requirement.
   
   Thank you.

    

   Peter Webb, May 2, 2016

   #1
2. 

   kiaora Guest

   hi
   any 2 port 5 wire valve will work.
   
   just alter the wiring, not difficult to do.
   
   question of using the power on to the open valve, power off not required, spring return
   
   
   regards
   peter

    

   kiaora, May 3, 2016

   #2

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