Used for pressure limiting in hydraulic systems or lubrication circuits to prevent overload;
Not a safety valve (compliant with DIN 3320 standard), requires use in conjunction with a safety valve;
Pilot-controlled structure: The main valve piston closes via hydraulic differential principles, with a response speed of ≤20 ms.
Application Areas and Typical Scenarios
Industrial Equipment:
Construction machinery (hydraulic systems of excavators), mining equipment (lubrication circuits of crushers);
Generator sets (turbine oil circuits), paper-making machinery (roller press hydraulic units).
Specialized Fields:
Marine propulsion (crankcase oil pressure control), wind turbine units (gearbox lubrication systems);
Compressor manufacturing (stabilization of refrigerant circulation pressure).