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Pressure Sustaining Pilot Valve Model #3

This pilot integrates all principal functions of a 2-Way control circuit in a single assembly. It is a direct acting pilot 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. An integral needle valve acts as an upstream flow restrictor as well as a closing speed control.

Product Features & Benefits
  •  Integral needle valve
  •  Internal or external pressure sensing
  •  Differential pressure sensing
  •  Direct pressure gauge installation

Typical Applications

  •  Pressure Relief/Sustaining Valve sizes 6-14” (Standard Model #3)
  •  Differential Pressure Sustaining Valve sizes 6-14” (Modified to differential sensing #3D)
  •  Surge Anticipating Valve sizes 11/2-4” as high pressure pilot (Standard Model #3)
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