Direct Acting Differential Area Relief Valves - RDH103K10

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 RDH103K10
$60.68
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Products specifications
Attribute nameAttribute value
UOMEAAdjustment MechanismKnob
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 Range100-1000 PSI, 6.9-69 BAR
Standard Setting Pressure500 PSI, 34.5 BARBody Materialn/a
Maximum Operating Pressure5500 psiDivisionHydraulic Systems Division
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Minimum Operating Temperature-35 °F
Maximum Operating Temperature+200 °FWeight0.5 lb
FunctionDirect ActingActuation TypePressure Sensing
Operation TypeAutomaticAdjustment MechanismKnob
Cavity SizeC10-2Maximum Tank Pressure350 bar
Port Thread Sizen/aSeal MaterialD-Ring (Standard)
Maximum Flow Rate20 Gal/minMaximum Inlet Pressure Rating5500 psi
Filter Efficiency RatingISO 4406 18/16/13, SAE Class 4For Fluid TypeMineral-based or synthetic hydraulic fluids
Valve MaterialAll parts steel. All operating parts hardened steelMounting TypeScrew in cartridge valve
Operating Temperature-37 to +93 °CFlow Rate20 Gal/min
Installation Torque69-75 NmMaximum Pressure Setting1000 psi
Standard Setting Pressure34.5 barCracking PressureN/A psi
Pressure Control Range6.9-69 barConfigurationDifferential Area Relief, Differential Relief w/Reverse Flow Check
Reseat Pressure85% of pressure settingMinimum Operating Pressure380 bar
Leak Rate.33 @ 75% Crack Pressure cm3/minPressure Control Sensitivity9.8 per turn bar
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