Caleffi 519566A By-Pass Differential Pressure Valve, 3/4 in Nominal, Press End Style, 150 psi Pressure, 9 gpm Flow Rate, Brass Body
CALEFFI 519566A DIFFERENTIAL BYPASS ADJ FROM 2-10PSI TEMP 32-230F 3/4 PRESS CONNECTIONS
Hydronic Bypass Valves
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Caleffi 519566A By-Pass Differential Pressure Valve, 3/4 in Nominal, Press End Style, 150 psi Pressure, 9 gpm Flow Rate, Brass Body
3394366
Product ID:3394366
Famous Supply
- Actuator Type: Control Knob
- Dimensions: 5-3/16 in H
- Media: Water/Glycol
- Series: 519
- Softgoods Material: EPDM O-Ring Seal
- Temperature Rating: 32 to 230 deg f
- Trim Material: Stainless Steel
- Type: By-Pass
- Nominal Size: 3/4 in
- End Style: Press
- Pressure Rating: 150 psi
- Flow Rate: 9 gpm
- Body Material: Brass
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.