Direct Acting Differential Area Relief Valves - RD163S30

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.
Availability: Backordered
SKU: RD163S30
$244.20
Products specifications
Attribute nameAttribute value
Body MaterialN/ASeal MaterialNitrile
Minimum Operating Temperature-30 °FDivisionHydraulic Systems Division
Maximum Operating Pressure3500 psiMaximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)
Maximum Inlet Pressure Rating240 barInstallation Torque54 Nm
Maximum Flow Rate40 Gal/minActuation TypePressure Sensing
FunctionDirect ActingMaximum Pressure Setting3000 psi
Operation TypeAutomaticAdjustment MechanismScrew
Cavity SizeC16-2Port Thread Sizen/a
Weight0.5 lbFlow Rate40 Gal/min
For Fluid TypeMineral-based or synthetic hydraulic fluidsMaximum Operating Temperature+250 °F
Valve MaterialAll parts steel. All operating parts hardened steelOperating Temperature-34 to +121 °C
Filter Efficiency RatingISO 4406 18/16/13, SAE Class 4Mounting TypeScrew in cartridge valve
Maximum Tank Pressure3000 psiPressure Control Range600-3000 psi
Standard Setting Pressure103.5 barCracking PressureN/A psi
Reseat Pressure80% of pressure settingLeak Rate.66 @ 75% Crack Pressure cm3/min
ConfigurationDifferential Area Relief, Differential Relief w/Reverse Flow CheckPressure Control Sensitivity14 per turn bar
Minimum Operating Pressure240 bar
Seal MaterialNitrileAdjustment MechanismScrew
Mounting TypeScrew in cartridge valveCracking PressureN/A
Pressure Control Range600-3000 PSI, 41.4-210 BARFlow Rate40 GAL/MIN, 151 L/MIN
Maximum Inlet Pressure Rating3500 PSI, 240 BARStandard Setting Pressure1500 PSI, 103.5 BAR
California Residents: Prop-65 Warning
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