Auer Steel | Caleffi | Diff Bypass Vlv1-1/4 Swt

Auer Steel

Part #519709A

Diff Bypass Vlv1-1/4 Swt

: Brand: Caleffi
Nominal Size: 1-1/4 in
Series: 519
Flow Rate: 45 gpm
Dimensions: 7-3/8 in H
Body Material: Brass
Softgoods Material: EPDM O-Ring Seal
Actuator Type: Control Knob
Media: Water/Glycol
Pressure Rating: 150 psi
Type: By-Pass
Temperature Rating: 32 to 230 deg F
End Style: FNPT x C
Trim Material: Stainless Steel
: 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 Differential Pressure Valve, Bypass, Series: 519, 1-1/4 in Nominal, FNPT x C, 150 psi, 32 to 230 deg F, 45 gpm, Media: Water/Glycol, Control Knob Actuator, Brass Body, Stainless Steel Trim, EPDM O-Ring Seal, 7-3/8 in H