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Pressure Sustaining Pilot Valve Model #3PB

This is a direct acting valve, actuated by a pressure responsive diaphragm, which tends to reach equilibrium with the set spring force. When used in a pressure relief/sustaining circuit, the pilot modulates open as upstream pressure rises above set point.

Features and Benefits

  •  Internal or external pressure sensing
  •  Differential pressure sensing
  •  Direct pressure gauge installation

Typical Applications

  •  Pressure relief/sustaining valve sizes 11/2-4” (Standard model #3PB).
  •  Differential Pressure sustaining valve sizes 11/2-4” (Modified to differential sensing #3PB-D)