Pressure control valves influence the system pressure in a specific, pre-determined manner. This is achieved by altering the throttling cross-sections with the aid of mechanical, electrical or hydraulic movements. The range includes pressure-limiting valves, pressure-reducing valves, switching valves and load-holding valves.
Pressure-limiting valves are a type of pressure control valve. They safeguard the system against excessive system pressure or limit the operation pressure. Pre-load valves, also called sequence valves are a type of pressure control valve. They generate a largely constant pressure drop between the inlet and outlet on the valve. In the opposite direction the flow can pass freely. In the normal position the valve has minor leakage.
Pressure-limiting valve type MV, SV, DMVPressure control valve type CMV, CMVZ, CSV, CSVZ Pressure-limiting valve type DV, DVE, DFPressure valve with check valve type AL, AE, ASPre-load check valve type VRProportional pressure-limiting valve type PMV, PMVPPressure-limiting valve type SVP, SVPRProportional pressure-limiting valve type PMV, PDV
Pressure reducing valves are a type of pressure control valve. They maintain a largely constant outlet pressure even at a variable (higher) inlet pressure.Pressure reducing valve type ADC, AMPressure reducing valve type ADM, ADMEPressure regulating valves type VDMPressure reducing valve type CDKPressure reducing valve type CLKPressure reducing valve type DK, DZ, DLZProportional pressure-reducing valve type PM, PMZProportional pressure-reducing valve type PDV, PDMProportional pressure-reducing valve type KFB 01
Shut-off valves are a type of pressure control valve. They receive the control oil from a high-pressure circuit and switch the delivery flow of a low-pressure pump to unpressurised circulation if the pressure value set has been reached. During this process, the consumer side is separated from the idle circulation by a zero-leakage check valve. If the pressure on the consumer side drops below the pressure setting, the idle circulation is interrupted and the oil fed to the consumer again.Directional valves type CNE Shut-off valves or accumulator charging valves are a type of pressure control valve. They switch the delivery flow of a pump to unpressurised circulation if the pressure value set is reached. During this process, the consumer side is separated from the idle circulation by a zero-leakage check valve. If the pressure drops in the consumer side, the idle circulation is interrupted and the oil fed to the consumer again.Directional valves type LV
Load-holding valves are a type of pressure control valve. They prevent loads on cylinders or motors dropping in an uncontrolled manner. For this purpose they are pre-loaded with a pressure setting that is higher than the largest possible load. A hydraulic piston controls the opening of the valve to achieve the required lowering velocity.Load-holding valves type CLHV-CLoad-holding valves type LHDVLoad-holding valves type LHКLoad-holding valves type LHT, LHTE
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