Quick Pressure Relief Pilot Valve Model PC-3Q

This pilot valve integrates all the principal functions of a two-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 as upstream pressure rises above the set point. An integral restriction acts as an upstream flow restrictor enabling smooth valve closing and simplifying the control circuit.

Product Features & Benefits


  •  Internal restriction


  •  Pressure relief valve sizes 11/2-4”

Technical Data
Pressure Rating: 16 bar (230 psi)
Working Temperature: Water up to 80°C (180°F)
Flow Factor: Kv 0.75 (Cv 0.88)
Standard Materials:
Body & cover:
Elastomers: NBR (Buna N)
Internals: Stainless Steel & Brass
Spring: Galvanized Steel.
Optional Materials:
Metal Parts:
Stainless Steel