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Relief Valves

The Pressure Relief Valve is designed to ensure the system does not exceed set pressure. When installing a relief valve, consideration must be given to the downstream venting arrangements.

Spring loaded

For general duties and orifice sizes up to 11.1mm (0.437″) a simple spring loaded seat design is used covering pressure up to 450 bar (6500 psi). For more accurate control, a combination of balance piston and cone seat is used, the pressure acting on the differential area between the piston and the seat.