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Pressure Sustaining Pilot Valve Model #3HC

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 Valves sizes 16-32” (Standard Model #3HC)
  •  Differential Pressure Sustaining 16-32” (Modified to differential sensing #3HC-DR)
  •  Surge Anticipating Valve sizes 6-14” as high pressure pilot (Modified to external pressure sensing #3HC-R)