Direct Acting Differential Area Relief Valves - RDH103S10

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 RDH103S10
$46.76
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Products specifications
Attribute nameAttribute value
UOMEAAdjustment MechanismScrew
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
Weight0.5 lbFunctionDirect Acting
Actuation TypePressure SensingOperation TypeAutomatic
Adjustment MechanismScrewCavity SizeC10-2
Maximum Tank Pressure350 barPort 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 Rate75 L/min
Installation Torque69-75 NmMaximum Pressure Setting1000 psi
Standard Setting Pressure34.5 barCracking PressureN/A psi
Pressure Control Range100-1000 psiLeak Rate5 @ 75% Crack Pressure drops/min
ConfigurationDifferential Area Relief, Differential Relief w/Reverse Flow CheckReseat Pressure85% of pressure setting
Minimum Operating Pressure380 barPressure Control Sensitivity143 per turn psi
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