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Thrust Flow Control Valve

Dave_108 Member Posts: 1
A flow-control valve is a very simple device, you must be zoning with circulators right? There is no adjustment on these with the exception of gravity flow, or not gravity. It`s like a "weighted check-valve". Tell me this, are you pumping "towards" these valves, or away? And is the expansion tank tied-in to this "problem valve?


  • Lee Anderson
    Lee Anderson Member Posts: 1
    Thrust Flow Control Valve

    I have a 3-circuit steam system converted to hot water. Other than replacing what was necessary to install the hot water boiler, no other piping or radiator was changed. The system has been working quite well until the end of last year's heating season. There are three thrust flow control valves (one for each circuit). One of the valves is making a terrible rattling sound when the circulaor pump comes on. Is there a way to adjust the valve to eliminate the rattle?
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