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Picture of Parker PRH081K50 - Pilot Operated Pressure Reducing Relieving Valves

*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

Parker PRH081K50 - 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. PRH081K50
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Products specifications
Attribute nameAttribute value
Body Materialn/aMaximum Operating Pressure5000 psi
DivisionHydraulic Cartridge Systems DivisionDivisionHydraulic Systems Division
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Minimum Operating Temperature-37 °C
Maximum Operating Temperature+200 °FFlow Rate30 L/min
Maximum Flow Rate8 Gal/minActuation TypePressure Sensing
Weight0.11 kgOperation TypeAutomatic
Adjustment MechanismKnobFunctionPilot Operated
Maximum Tank Pressure350 barPort Thread Sizen/a
Seal MaterialD-Ring (Standard)Cavity SizeC08-3
ConfigurationPressure Reducing/RelievingMaximum Inlet Pressure Rating380 bar
For Fluid TypeMineral-based or synthetic hydraulic fluidsValve MaterialAll parts steel. All operating parts hardened steel
Filter Efficiency RatingISO 4406 18/16/13, SAE Class 4Mounting TypeScrew in cartridge valve
Operating Temperature-35 to +200 °FInstallation Torque32-36 lb-ft
Leak RateN/A cc/minMaximum Pressure Setting350 bar
Pressure Control Sensitivity131.7 per turn barCracking PressureN/A psi
Pressure Control Range200-5000 psiMaximum Drain Flow Rate0.56 L/min
Standard Setting Pressure172 barAdjustment MechanismKnob
Flow Rate8 GAL/MIN, 30 L/MINMounting TypeScrew in cartridge valve
Cracking PressureN/ASeal MaterialD-Ring (Standard)
Pressure Control Range200-5000 PSI, 13.8-350 BAR
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