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Picture of Parker RDH103T30 - 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 RDH103T30 - 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. RDH103T30
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Products specifications
Attribute nameAttribute value
Body Materialn/aMaximum Operating Pressure5500 psi
DivisionHydraulic Systems DivisionMaximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)
Minimum Operating Temperature-35 °FMaximum Operating Temperature+200 °F
Weight0.5 lbFunctionDirect Acting
Actuation TypePressure SensingMaximum Pressure Setting3000 psi
Operation TypeAutomaticAdjustment MechanismTamper Resistant
Cavity SizeC10-2Maximum Tank Pressure350 bar
Port Thread Sizen/aSeal MaterialD-Ring (Standard)
Maximum Inlet Pressure Rating5500 psiMaximum Flow Rate75 L/min
For Fluid TypeMineral-based or synthetic hydraulic fluidsValve MaterialAll parts steel. All operating parts hardened steel
Filter Efficiency RatingISO 4406 18/16/13, SAE Class 4Mounting TypeScrew in cartridge valve
Operating Temperature-37 to +93 °CFlow Rate75 L/min
Installation Torque51-55 lb-ftStandard Setting Pressure1500 psi
Cracking PressureN/A psiReseat Pressure85% of pressure setting
ConfigurationDifferential Area Relief, Differential Relief w/Reverse Flow CheckLeak Rate.33 @ 75% Crack Pressure cm3/min
Pressure Control Range1000-3000 psiMinimum Operating Pressure380 bar
Pressure Control Sensitivity375 per turn psiAdjustment MechanismTamper Resistant
Mounting TypeScrew in cartridge valveCracking PressureN/A
Seal MaterialD-Ring (Standard)Flow Rate20 GAL/MIN, 75 L/MIN
Maximum Inlet Pressure Rating5500 PSI, 380 BARPressure Control Range500-3000 PSI, 34.5-210 BAR
Standard Setting Pressure1500 PSI, 103.5 BAR
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