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Pilot Operated Pressure Reducing Relieving Valves

Picture for category 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's family of pilot operated acting reducing & relieving valves provide superior pressure control in applications where specific regulated and relief pressures are needed for precise operation on functions that require regulated pressures up to 380 bar (5500 psi) and flows up to 150 lpm (40 gpm). Parker's pilot operated acting reducing & relieving valves are designed with several pressure ranges in order to give a higher degree of control with a variety of adjustment style options available. The additional valve stability due to the pilot operation make these valves ideal for sensitive functions such as up or downforce, clamping, or braking applications on various types of machinery within the mobile and industrial markets.

Markets:
• Agriculture
• Construction Equipment
• Industrial
• Miscellaneous Manufacturing
• Miscellaneous Mobile

Features/Benefits:
• Multiple pressure ranges available for more accurate pressure control
• Compact size for reduced space requirements
• Adjustable and tamperproof versions available
• High pressure capacity
• All external parts zinc plated

Applications:
• Brakes
• Clamps
• Suspension systems
• Up/down-force systems

Additional Technical Insight:
Typical applications are in mobile & industrial equipment, where a branch of the system is intended to operate at a lower setting than high system pressure.  Hydraulic functions such as brake circuits, clamping or clutch circuits, suspension systems, street sweepers, or seeding and planting rows in agricultural equipment are common applications for these products.
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ActionPart No.AvailabilityPartner AvailablePriceUOMSeal MaterialBody MaterialMaximum Operating PressureDivisionDivisionMaximum Kinematic ViscosityMinimum Operating TemperatureFlow RateMaximum Flow RateActuation TypeOperation TypeAdjustment MechanismFunctionLeak RateMaximum Tank PressurePort Thread SizeCracking PressureWeightCavity SizeConfigurationMaximum Inlet Pressure RatingInstallation TorqueFor Fluid TypeValve MaterialFilter Efficiency RatingOperating TemperatureMaximum Operating TemperatureMounting TypeStandard Setting PressureMaximum Drain Flow RateMaximum Pressure SettingPressure Control RangePressure Control SensitivitySeal MaterialAdjustment MechanismMounting TypeCracking PressureFlow RatePressure Control Range
PRH121T20V
Quote Required
TBD
Fluorocarbonn/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-153030Pressure SensingAutomaticTamper ResistantPilot Operatedn/a5000n/an/a0.6C12-3Pressure Reducing/Relieving550056Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-15 to +400+400Screw in cartridge valve10000.252000200-2000539 per turnFluorocarbonTamper ResistantScrew in cartridge valveN/A30 GAL/MIN, 113.7 L/MIN200-2000 PSI, 13.8-138 BAR
PRH121T30
Quote Required
TBD
Nitrilen/a350 barHydraulic Cartridge Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-34 °C30 Gal/min30 Gal/minPressure SensingAutomaticTamper ResistantPilot OperatedN/A cc/min5000 psin/aN/A psi0.27 kgC12-3Pressure Reducing/Relieving5500 psi75 NmMineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-30 to +250 °F+250 °FScrew in cartridge valve1500 psi0.25 Gal/min210 bar20.7-210 bar60 per turn barNitrileTamper ResistantScrew in cartridge valveN/A30 GAL/MIN, 113.7 L/MIN300-3000 PSI, 20.7-210 BAR
PRH121T30V
Quote Required
TBD
Fluorocarbonn/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-153030Pressure SensingAutomaticTamper ResistantPilot Operated5000n/an/a0.6C12-3Pressure Reducing/Relieving550056Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-15 to +400+400Screw in cartridge valve15000.253000300-3000870 per turnFluorocarbonTamper ResistantScrew in cartridge valveN/A30 GAL/MIN, 113.7 L/MIN300-3000 PSI, 20.7-210 BAR
PRH121T50
Quote Required
TBD
Nitrilen/a5000 psiHydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-30 °F30 Gal/min30 Gal/minPressure SensingAutomaticTamper ResistantPilot OperatedN/A cc/min5000 psin/aN/A psi0.6 lbC12-3Pressure Reducing/Relieving380 bar56 lb-ftMineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-30 to +250 °F+250 °FScrew in cartridge valve2500 psi0.94 L/min5000 psi500-5000 psi1711 per turn psiNitrileTamper ResistantScrew in cartridge valveN/A30 GAL/MIN, 113.7 L/MIN500-5000 PSI, 34.5-350 BAR
PRH121T50V
Quote Required
TBD
Fluorocarbonn/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-153030Pressure SensingAutomaticTamper ResistantPilot Operatedn/a5000n/an/a0.6C12-3Pressure Reducing/Relieving550056Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-15 to +400+400Screw in cartridge valve25000.255000500-50001711 per turnFluorocarbonTamper ResistantScrew in cartridge valveN/A30 GAL/MIN, 113.7 L/MIN500-5000 PSI, 34.5-350 BAR
PRH161F10
Quote Required
TBD
Nitrilen/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-304040Pressure SensingAutomaticFixedPilot Operated5 per 100 PSI (6.9 BAR) setting5000n/an/a0.75C16-3Pressure Reducing/Relieving5500121-125Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-30 to +250+250Screw in cartridge valve5000.51000100-1000n/aNitrileFixedScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN100-1000 PSI, 6.9-69 BAR
PRH161F10V
Quote Required
TBD
Fluorocarbonn/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-154040Pressure SensingAutomaticFixedPilot Operated5 per 100 PSI (6.9 BAR) setting5000n/an/a0.75C16-3Pressure Reducing/Relieving5500121-125Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-15 to +400+400Screw in cartridge valve5000.51000100-1000n/aFluorocarbonFixedScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN100-1000 PSI, 6.9-69 BAR
PRH161F20
Quote Required
TBD
Nitrilen/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-304040Pressure SensingAutomaticFixedPilot Operated5 per 100 PSI (6.9 BAR) setting5000n/an/a0.75C16-3Pressure Reducing/Relieving5500121-125Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-30 to +250+250Screw in cartridge valve10000.52000200-2000n/aNitrileFixedScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN200-2000 PSI, 13.8-138 BAR
PRH161F20V
Quote Required
TBD
Fluorocarbonn/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-154040Pressure SensingAutomaticFixedPilot Operated5 per 100 PSI (6.9 BAR) setting5000n/an/a0.75C16-3Pressure Reducing/Relieving5500121-125Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-15 to +400+400Screw in cartridge valve10000.52000200-2000n/aFluorocarbonFixedScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN200-2000 PSI, 13.8-138 BAR
PRH161F30
Quote Required
TBD
Nitrilen/a350 barHydraulic Cartridge Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-30 °F151.4 L/min40 Gal/minPressure SensingAutomaticFixedPilot Operated5 per 100 PSI (6.9 BAR) setting cc/min350 barn/aN/A psi0.34 kgC16-3Pressure Reducing/Relieving5500 psi164-170 NmMineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-34 to +121 °C+250 °FScrew in cartridge valve1500 psi1.9 L/min210 bar20.7-210 barN/A psiNitrileFixedScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN300-3000 PSI, 20.7-210 BAR
PRH161F30V
Quote Required
TBD
Fluorocarbonn/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-154040Pressure SensingAutomaticFixedPilot Operated5 per 100 PSI (6.9 BAR) setting5000n/an/a0.75C16-3Pressure Reducing/Relieving5500121-125Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-15 to +400+400Screw in cartridge valve15000.53000300-3000n/aFluorocarbonFixedScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN300-3000 PSI, 20.7-210 BAR
PRH161F50
Quote Required
TBD
Nitrilen/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-304040Pressure SensingAutomaticFixedPilot Operated5 per 100 PSI (6.9 BAR) setting5000n/an/a0.75C16-3Pressure Reducing/Relieving5500121-125Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-30 to +250+250Screw in cartridge valve25000.55000500-5000n/aNitrileFixedScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN500-5000 PSI, 34.5-350 BAR
PRH161F50V
Quote Required
TBD
Fluorocarbonn/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-154040Pressure SensingAutomaticFixedPilot Operated5000n/an/a0.75C16-3Pressure Reducing/Relieving5500121-125Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-15 to +400+400Screw in cartridge valve25000.55000500-5000n/aFluorocarbonFixedScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN500-5000 PSI, 34.5-350 BAR
PRH161K10
Quote Required
TBD
Nitrilen/a5000 psiHydraulic Cartridge Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-30 °F151.4 L/min40 Gal/minPressure SensingAutomaticKnobPilot Operated5 per 100 PSI (6.9 BAR) setting cc/min5000 psin/aN/A psi0.34 kgC16-3Pressure Reducing/Relieving5500 psi121-125 lb-ftMineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-30 to +250 °F+93 °CScrew in cartridge valve34.5 bar1.9 L/min1000 psi100-1000 psi285 per turn psiNitrileKnobScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN100-1000 PSI, 6.9-69 BAR
PRH161K10V
Quote Required
TBD
Fluorocarbonn/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-154040Pressure SensingAutomaticKnobPilot Operated5 per 100 PSI (6.9 BAR) setting5000n/an/a0.75C16-3Pressure Reducing/Relieving5500121-125Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-15 to +400+400Screw in cartridge valve5000.51000100-1000285 per turnFluorocarbonKnobScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN100-1000 PSI, 6.9-69 BAR
PRH161K20
Quote Required
TBD
Nitrilen/a5000 psiHydraulic Cartridge Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-34 °C151.4 L/min40 Gal/minPressure SensingAutomaticKnobPilot Operated5 per 100 PSI (6.9 BAR) setting cc/min5000 psin/aN/A psi0.34 kgC16-3Pressure Reducing/Relieving5500 psi121-125 lb-ftMineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-34 to +121 °C+93 °CScrew in cartridge valve1000 psi0.5 Gal/min138 bar13.8-138 bar37 per turn barNitrileKnobScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN200-2000 PSI, 13.8-138 BAR
PRH161K20V
Quote Required
TBD
Fluorocarbonn/a5000Hydraulic Valve Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-154040Pressure SensingAutomaticKnobPilot Operated5 per 100 PSI (6.9 BAR) setting5000n/an/a0.75C16-3Pressure Reducing/Relieving5500121-125Mineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-15 to +400+400Screw in cartridge valve10000.52000200-2000539 per turnFluorocarbonKnobScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN200-2000 PSI, 13.8-138 BAR
PRH161K30
Quote Required
TBD
Nitrilen/a350 barHydraulic Cartridge Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-30 °F151.4 L/min40 Gal/minPressure SensingAutomaticKnobPilot Operated5 per 100 PSI (6.9 BAR) setting cc/min350 barn/aN/A psi0.75 lbC16-3Pressure Reducing/Relieving5500 psi164-170 NmMineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-34 to +121 °C+93 °CScrew in cartridge valve1500 psi0.5 Gal/min210 bar20.7-210 bar58.9 per turn barNitrileKnobScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN300-3000 PSI, 20.7-210 BAR
PRH161K30V
Quote Required
TBD
Fluorocarbonn/a5000 psiHydraulic Cartridge Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-15 °F40 Gal/min40 Gal/minPressure SensingAutomaticKnobPilot Operated350 barn/aN/A psi0.34 kgC16-3Pressure Reducing/Relieving5500 psi164-170 NmMineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-26 to +204 °C+204 °CScrew in cartridge valve1500 psi0.5 Gal/min210 bar20.7-210 bar58.9 per turn barFluorocarbonKnobScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN300-3000 PSI, 20.7-210 BAR
PRH161K50
Quote Required
$142.88
EANitrilen/a350 barHydraulic Cartridge Systems DivisionHydraulic Systems Division45-2000 SSU (6 to 420 cSt)-30 °F40 Gal/min151.4 L/minPressure SensingAutomaticKnobPilot Operated5 per 100 PSI (6.9 BAR) setting cc/min350 barn/aN/A psi0.34 kgC16-3Pressure Reducing/Relieving5500 psi164-170 NmMineral-based or synthetic hydraulic fluidsAll parts steel. All operating parts hardened steelISO 4406 18/16/13, SAE Class 4-34 to +121 °C+93 °CScrew in cartridge valve172 bar0.5 Gal/min5000 psi500-5000 psi1910 per turn psiNitrileKnobScrew in cartridge valveN/A40 GAL/MIN, 151.4 L/MIN500-5000 PSI, 34.5-350 BAR