Parker PRH121S30 - 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).
AFP Availability:
1 Limited Stock
Greensboro, NC1
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Brand Parker
Part No. PRH121S30
$196.00/each
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Products specifications
Attribute nameAttribute value
UOMEAActuation TypePressure Sensing
Port Thread SizeN/ASeal MaterialNitrile
Valve MaterialAll parts steel. All operating parts hardened steelWeight0.6 lb
Maximum Operating Pressure5000 psiFilter Efficiency RatingISO 4406 18/16/13, SAE Class 4
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Adjustment MechanismScrew
Maximum Tank Pressure5000 psiMaximum Pressure Setting3000 psi
Cracking PressureN/A psiMaximum Inlet Pressure Rating5500 psi
FunctionPilot OperatedDivisionHydraulic Cartridge Systems Division
ConfigurationPressure Reducing/RelievingFor Fluid TypeMineral-based or synthetic hydraulic fluids
Pressure Control Sensitivity60 per turn barPressure Control Range20.7-210 bar
Cavity SizeC12-3Maximum Operating Temperature+250 °F
Leak RateN/A cc/minStandard Setting Pressure103.5 bar
Mounting TypeScrew in cartridge valveOperation TypeAutomatic
Maximum Flow Rate30 Gal/minDivisionHydraulic Systems Division
Maximum Drain Flow Rate0.94 L/minMinimum Operating Temperature-34 °C
Body MaterialN/AOperating Temperature-30 to +250 °F
Installation Torque75 NmFlow Rate30 Gal/min
Seal MaterialNitrileAdjustment MechanismScrew
Mounting TypeScrew in cartridge valveCracking PressureN/A
Flow Rate30 GAL/MIN, 113.7 L/MINPressure Control Range300-3000 PSI, 20.7-210 BAR
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