Discuss Please Identify Ancient Motorised Valve in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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More heating problems. We have a very old vented, fully pumped ch system and Thorne Olympic boiler. The heating is coming on with the hot water and I suspect the motorised valve. I think it's from the same era as the boiler, and I can't see any markings on it to identify it. From the picture can anyone tell me what make/model it is and if they are still available?

Many thanks.

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No there not still available looks like an old servowarm or sunvic
 
Thanks for your replies. Will a Honeywell fit in the pipework without any alterations? Will it have the same number of wires and same wire colours?
 
Probably not but it should with not much work eg a coupling and a short but of pipe
 
It's a Satchwell.
I would replace it with a Honeywell
You'll probably need to change the nuts and olives.
 
Thanks for your replies.

Yes, Satchwell/Sunvic by the looks of it. However, it looks like it may be a motor on, motor off valve. Will the wiring be a straight swap to the Honeywell, or do I need to make changes.

 
It does have 'Satchwell' printed on it, which is probably a clue! :)
Bloody amazing for their long lifespan!
I use Myson motorised valves now because the Honeywells were not lasting
 
Don't expect the modern Sunvic actuator to last long.
I would replace entire valve because of the wear that old valve will have.
 
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