3PB – Bronze or St/Steel 2 way Pressure Sustaining Pilot


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


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.

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