Relief Valve

The relief valve is a pressure control valve. It maintains constant pressure at inlet by discharging excess fluid in the system. Solenoids relief valve is a combination of electromagnetic directional valve and pilot-operated pressure relief valve, it is used to control or unload multi-stage pressure in hydraulic system.

Product Introduction of Relief valve


Technical specification

Specification 03 06 10
10 15 20 25 30
Max. Flow (L/min) 250 500 500 500 650
Max. Working pressure (MPa) 35
Working fluid Mineral oil; phosphate-ester
Fluid temp. (°C) -20~70
Viscosity (mm2/s) 12~380
Working press (MPa) 5 10 20 31.5 35
Cleanliness The maximum allowable cleanliness of the oil should be according to 9th degree of Standard NAS 1638. It is suggested that the minimum filter rating should be β10≥75.


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