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.
A balancing valve. If you Google balancing valve you'll see there are all types. The model number would be the distinction between the different types and what features they have.
A balancing valve. If you Google balancing valve you'll see there are all types. The model number would be the distinction between the different types and what features they have.
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.