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Author Topic: Boiler feed valve on old Bing  (Read 623 times)

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Re: Boiler feed valve on old Bing
« on: July 29, 2019, 10:25:44 am »
Well in theory the valve should have a ball type pressure check built into it so that water under pressure from the pump can flow into the boiler by lifting the ball off its seat seal, but boiler pressure cannot escape back to the pump because it forces the ball hard against its seat seal.

Hope that makes any sense!?!?
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