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Picture of Parker PRH121S10 - 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 PRH121S10 - 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. PRH121S10
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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 barActuation TypePressure Sensing
Operation TypeAutomaticAdjustment MechanismScrew
FunctionPilot OperatedMaximum Tank Pressure5000 psi
Port Thread Sizen/aWeight0.27 kg
Cavity SizeC12-3ConfigurationPressure 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 °CFlow Rate30 Gal/min
Installation Torque75 NmLeak RateN/A cc/min
Maximum Drain Flow Rate0.25 Gal/minMaximum Pressure Setting1000 psi
Standard Setting Pressure34.5 barCracking PressureN/A psi
Pressure Control Range100-1000 psiMaximum Flow Rate113.7 L/min
Pressure Control Sensitivity334 per turn psiSeal MaterialNitrile
Adjustment MechanismScrewMounting TypeScrew in cartridge valve
Cracking PressureN/APressure Control Range100-1000 PSI, 6.9-69 BAR
Flow Rate30 GAL/MIN, 113.7 L/MIN
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