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Mend Ravenheat RFS 820/20 Boiler Procedure Valve

How do I fit a new diaphragm to RFS 820/20 boiler?

What is the procedure for fitting a new Diaphragm (part no. 5012051) for a 3 way valve on a RFS 820/20 Ravenheat boiler ?

David Frost
April 2010
RavenheatRavenheat RFS 820/20Heating, Home Heating SystemsBoiler Procedure Valve

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