Caleffi

Caleffi 519609A By-Pass Differential Pressure Valve, 1 in Nominal, FNPT x C End Style, 150 psi Pressure, 40 gpm Flow Rate, Brass Body

1418868 MFG #: 519609A
$194.00 / ea
Caleffi 519609A By-Pass Differential Pressure Valve, 1 in Nominal, FNPT x C End Style, 150 psi Pressure, 40 gpm Flow Rate, Brass Body
  • Actuator Type: Control Knob
  • Body Material: Brass
  • Dimensions: 6-5/8 in H
  • End Style: FNPT x C
  • Flow Rate: 40
  • Media: Water/Glycol
  • Nominal Size: 1
  • Pressure Rating: 150
  • Series: 519
  • Softgoods Material: EPDM O-Ring Seal
  • Temperature Rating: 32 to 230
  • Trim Material: Stainless Steel
  • Type: Bypass

Caleffi Differential Pressure Valve, By-Pass, Series: 519, 1 in Nominal, FNPT x C, 150 psi, 32 to 230 deg F, 40 gpm, Media: Water/Glycol, Control Knob Actuator, Brass Body, Stainless Steel Trim, EPDM O-Ring Seal, 6-5/8 in H

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.

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