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)