Interesting Balancing Valve

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Weekend Handyman

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I came across this guy in my travels today. My inner plumbing geek is curious about what it is called and does. It is on the supply for a hot water air handler.

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Reach4

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Speculation: pressure measuring points before and after the valve?
 

John Gayewski

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It's a balancing valve and It's for reading the temp. You stick a temp probe into those two ports and you get supply and or return temp.

One reads on one side of the valve and the other on the other.
 

Weekend Handyman

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Fitter30

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Circuit setter. Need their chart measures pressure drop tells gpm. Used mostly on commercial systems. Probably a $35 valve pre pandemic has a set screw for locking in the setting if used for shut off also. Have multiple devices chilled or hot water its the only way to balance a larger system. Don't want 5 gpm thru a 1 gpm coil you would run out of pump.
 
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