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product detail
  • Product Name： Pressure Control Valves
  • Model No： Relief Valve
  • OR
Description:

Instruction of Relief valve:
The relief valve is a pressure control valve, which maintains constant pressure at inlet by discharging excess fluid in the system. As a combination of electromagnetic directional valve and pilot-operated pressure relief valve, solenoids relief valve is used to control or unload multi-stage pressure in 4-hydraulic system.

Model description

Explanation
1. Item 1),2),3),4),5)is used in YW solenoid relief valves
2. Item 2) damping is fixed at port B of solenoid directional valves
3. 6) Type U characteristic refer to the curve

Technical Specification of Y/YW Pilot-operated Relief Valve/ Solenoid Relief Valve

                       Parameters Specification           03 06 10
Maximum working pressure(MPa) 31.5
Maximum flow(L/min) 250 500 650
Working fluid Mineral oil, phosphate-ester
Fluid temp(℃) -20～70
Viscosity(mm²/s) 12～380
Working press(Mpa) 5  10  20  31.5 35
Weight(Kg) Y Type 2.6 3.5 4.4
YW Type 3.8 4.7 5.6

Code symbol

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