Parker PRH081S10V - 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. PRH081S10V
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Products specifications
Attribute nameAttribute value
Seal MaterialFluorocarbonBody Materialn/a
Maximum Operating Pressure5000 psiDivisionHydraulic Cartridge Systems Division
DivisionHydraulic Systems DivisionMaximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)
Minimum Operating Temperature-15 °FMaximum Flow Rate30 L/min
Actuation TypePressure SensingOperation TypeAutomatic
Adjustment MechanismScrewFunctionPilot Operated
Flow Rate8 Gal/minMaximum Tank Pressure350 bar
Port Thread Sizen/aWeight0.25 lb
Cavity SizeC08-3ConfigurationPressure Reducing/Relieving
Maximum Inlet Pressure Rating5500 psiInstallation Torque43-49 Nm
Maximum Operating Temperature+204 °CFor Fluid TypeMineral-based or synthetic hydraulic fluids
Valve MaterialAll parts steel. All operating parts hardened steelOperating Temperature-15 to +400 °F
Filter Efficiency RatingISO 4406 18/16/13, SAE Class 4Mounting TypeScrew in cartridge valve
Leak RateN/A cc/minMaximum Pressure Setting1000 psi
Standard Setting Pressure34.5 barCracking PressureN/A psi
Pressure Control Range100-1000 psiMaximum Drain Flow Rate0.56 L/min
Pressure Control Sensitivity285 per turn psiSeal MaterialFluorocarbon
Adjustment MechanismScrewFlow Rate8 GAL/MIN, 30 L/MIN
Mounting TypeScrew in cartridge valveCracking PressureN/A
Pressure Control Range100-1000 PSI, 6.9-69 BAR
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