Direct Acting Differential Area Relief Valves - RDH103T50

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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SKU RDH103T50
$59.60
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Products specifications
Attribute nameAttribute value
UOMEAAdjustment 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 Range500-5000 PSI, 34.5-350 BAR
Standard Setting Pressure2500 PSI, 172 BARBody Materialn/a
Maximum Operating Pressure5500 psiDivisionHydraulic Systems Division
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Minimum Operating Temperature-35 °F
Weight0.23 kgFunctionDirect Acting
Actuation TypePressure SensingOperation TypeAutomatic
Adjustment MechanismTamper ResistantCavity SizeC10-2
Maximum Tank Pressure5000 psiPort Thread Sizen/a
Seal MaterialD-Ring (Standard)Maximum Inlet Pressure Rating5500 psi
Maximum Flow Rate75 L/minFilter Efficiency RatingISO 4406 18/16/13, SAE Class 4
For Fluid TypeMineral-based or synthetic hydraulic fluidsValve MaterialAll parts steel. All operating parts hardened steel
Mounting TypeScrew in cartridge valveMaximum Operating Temperature+93 °C
Operating Temperature-35 to +200 °FFlow Rate20 Gal/min
Installation Torque51-55 lb-ftMaximum Pressure Setting350 bar
Cracking PressureN/A psiStandard Setting Pressure172 bar
ConfigurationDifferential Area Relief, Differential Relief w/Reverse Flow CheckReseat Pressure85% of pressure setting
Pressure Control Range138-350 barMinimum Operating Pressure380 bar
Leak Rate.33 @ 75% Crack Pressure cm3/minPressure Control Sensitivity589 per turn psi
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