Pilot Operated Relief Valves - RAH121K20V

Parker’s pilot operated relief valves are designed for continuous duty applications featuring great stability with low pressure drop; working with pressures up to 420 bar (6000 psi) and flows up to 400 lpm (106 gpm).
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SKU RAH121K20V
POR
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Products specifications
Attribute nameAttribute value
Seal MaterialFluorocarbonAdjustment MechanismKnob
Maximum Inlet Pressure Rating5500 PSI, 380 BARPressure Control Range200-2000 PSI, 13.8-138 BAR
Flow Rate50 GAL/MIN, 189.5 L/MINSeal MaterialFluorocarbon
Body Materialn/aMaximum Operating Pressure5000
DivisionHydraulic Valve Systems DivisionDivisionHydraulic Systems Division
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Minimum Operating Temperature-15
Flow Rate50Maximum Flow Rate50
Weight0.48ConfigurationPressure Relief
Actuation TypePressure SensingOperation TypeAutomatic
Adjustment MechanismKnobFunctionPilot Operated
Maximum Tank Pressure5000Cavity SizeC12-2
Maximum Inlet Pressure Rating5500Filter Efficiency RatingISO 4406 18/16/13, SAE Class 4
For Fluid TypeMineral-based or synthetic hydraulic fluidsValve MaterialAll parts steel. All operating parts hardened steel
Operating Temperature-15 to +400Maximum Operating Temperature+400
Mounting TypeScrew in cartridge valveInstallation Torque92-96
Standard Setting Pressure1000Maximum Pressure Setting2000
Pressure Control Range200-2000Pressure Control Sensitivity539 per turn
Reseat Pressure80% of pressure settingLeak Rate82 @ 75% Crack Pressure
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