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Picture of Parker RDH103S50V - Direct Acting Differential Area Relief 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 RDH103S50V - Direct Acting Differential Area Relief Valves

Parker’s direct acting differential area relief valves are for fast response intermittent applications and work up to 380 bar (5500 psi) and 151 lpm (40 gpm). These valves have lower leakage rates and pressure rise than standard direct acting reliefs.
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Brand Parker
Part No. RDH103S50V
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Products specifications
Attribute nameAttribute value
Seal MaterialFluorocarbonBody Materialn/a
Maximum Operating Pressure5500 psiDivisionHydraulic Systems Division
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Minimum Operating Temperature-26 °C
Weight0.5 lbFunctionDirect Acting
Actuation TypePressure SensingOperation TypeAutomatic
Adjustment MechanismScrewCavity SizeC10-2
Maximum Tank Pressure350 barPort Thread Sizen/a
Maximum Inlet Pressure Rating380 barMaximum Flow Rate75 L/min
Maximum Operating Temperature+400 °FFor Fluid TypeMineral-based or synthetic hydraulic fluids
Valve MaterialAll parts steel. All operating parts hardened steelOperating Temperature-26 to +204 °C
Filter Efficiency RatingISO 4406 18/16/13, SAE Class 4Mounting TypeScrew in cartridge valve
Flow Rate75 L/minInstallation Torque51-55 lb-ft
Maximum Pressure Setting350 barCracking PressureN/A psi
Standard Setting Pressure172 barLeak Rate5 @ 75% Crack Pressure drops/min
Reseat Pressure85% of pressure settingConfigurationDifferential Area Relief, Differential Relief w/Reverse Flow Check
Pressure Control Range2000-5000 psiMinimum Operating Pressure380 bar
Pressure Control Sensitivity589 per turn psiSeal MaterialFluorocarbon
Adjustment MechanismScrewMounting TypeScrew in cartridge valve
Cracking PressureN/AFlow Rate20 GAL/MIN, 75 L/MIN
Maximum Inlet Pressure Rating5500 PSI, 380 BARPressure Control Range500-5000 PSI, 34.5-350 BAR
Standard Setting Pressure2500 PSI, 172 BAR
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