Caleffi 519502A Differential Pressure By-Pass Valve, 3/4 in, MNPT, 150 psi, 9 gpm, Brass

CLF519502A MFG #: 519502A

Body Material: BRASS
End Style: MNPT
Flow Rate: 9 gpm
Nominal Size: 3/4 in
Pressure Rating: 150 psi
Dimensions: 5-11/16 in
Manufacturer: Caleffi
Manufacturer #: 519502A
Media: Water/Glycol Mixture
Series: 519
Softgoods Material: EPDM O-Ring
Temperature Rating: 32 to 230 deg F
Type: Differential Pressure

The differential pressure by-pass valve is used in systems with a fixed speed circulating pump supplying several zones controlled by two way zone valves. This valve ensures that the head pressure of the pump is proportional to the number of two way valves being closed. It will bypass the differential pressure created by the pump as the zone valves close, thus eliminating water hammer noise.

Caleffi By-Pass Valve, Differential Pressure, Series: 519, 3/4 in Nominal Size, MNPT, 150 psi, 32 to 230 deg F, 9 gpm, Media: Water/Glycol Solution, Brass Body, EPDM O-Ring, 5-11/16 in