PC-3Q – Quick Pressure Relief Pilot


  • Internal restriction
  • Direct pressure gauge installation


This pilot integrates all principal functions of a 2-way control circuit in a single assembly. It is a direct acting valve, actuated by a pressure responsive diaphragm, which tends to reach equilibrium with the set spring force.

The pilot opens at upstream pressure rise above set point. An integral restriction acts as an upstream flow restrictor, smoothing valve closing and simplifying the control circuit.

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