Pilot Operated Pressure Reducing Relieving Valves - PRH121S50

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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SKU PRH121S50
$170.52
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Products specifications
Attribute nameAttribute value
UOMEASeal MaterialNitrile
Adjustment MechanismScrewMounting TypeScrew in cartridge valve
Cracking PressureN/AFlow Rate30 GAL/MIN, 113.7 L/MIN
Pressure Control Range500-5000 PSI, 34.5-350 BARSeal MaterialNitrile
Body Materialn/aMaximum Operating Pressure5000 psi
DivisionHydraulic Cartridge Systems DivisionDivisionHydraulic Systems Division
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Minimum Operating Temperature-30 °F
Actuation TypePressure SensingOperation TypeAutomatic
Adjustment MechanismScrewFunctionPilot Operated
Maximum Tank Pressure5000 psiPort Thread Sizen/a
Weight0.6 lbCavity SizeC12-3
ConfigurationPressure Reducing/RelievingMaximum Inlet Pressure Rating5500 psi
Maximum Operating Temperature+250 °FFilter 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-30 to +250 °FMounting TypeScrew in cartridge valve
Flow Rate30 Gal/minInstallation Torque75 Nm
Leak RateN/A cc/minMaximum Drain Flow Rate0.25 Gal/min
Maximum Pressure Setting350 barStandard Setting Pressure2500 psi
Cracking PressureN/A psiMaximum Flow Rate113.7 L/min
Pressure Control Range34.5-350 barPressure Control Sensitivity1711 per turn psi
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