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Picture of Parker PRH161K30 - Pilot Operated Pressure Reducing Relieving Valves

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Parker PRH161K30 - Pilot Operated Pressure Reducing Relieving Valves

Parker’s pilot operated acting reducing & relieving valves are used in applications where specific functions require reduced and regulated pressure. Capable of flows up to 150 lpm (40 gpm) and pressures up to 380 bar (5500 psi).
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Brand Parker
Part No. PRH161K30
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Products specifications
Attribute nameAttribute value
Seal MaterialNitrileBody Materialn/a
DivisionHydraulic Cartridge Systems DivisionDivisionHydraulic Systems Division
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Minimum Operating Temperature-30 °F
Maximum Operating Pressure350 barMaximum Flow Rate40 Gal/min
Actuation TypePressure SensingMaximum Pressure Setting210 bar
Operation TypeAutomaticAdjustment MechanismKnob
FunctionPilot OperatedMaximum Tank Pressure350 bar
Port Thread Sizen/aCavity SizeC16-3
Weight0.75 lbConfigurationPressure Reducing/Relieving
Maximum Inlet Pressure Rating5500 psiFor Fluid TypeMineral-based or synthetic hydraulic fluids
Valve MaterialAll parts steel. All operating parts hardened steelOperating Temperature-34 to +121 °C
Filter Efficiency RatingISO 4406 18/16/13, SAE Class 4Mounting TypeScrew in cartridge valve
Maximum Operating Temperature+93 °CStandard Setting Pressure1500 psi
Pressure Control Sensitivity58.9 per turn barCracking PressureN/A psi
Flow Rate151.4 L/minInstallation Torque164-170 Nm
Pressure Control Range20.7-210 barMaximum Drain Flow Rate0.5 Gal/min
Leak Rate5 per 100 PSI (6.9 BAR) setting cc/minSeal MaterialNitrile
Adjustment MechanismKnobMounting TypeScrew in cartridge valve
Cracking PressureN/AFlow Rate40 GAL/MIN, 151.4 L/MIN
Pressure Control Range300-3000 PSI, 20.7-210 BAR
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