Direct Acting Differential Area Relief Valves - RD163K30

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 RD163K30
$207.93
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Products specifications
Attribute nameAttribute value
UOMEASeal MaterialNitrile
Adjustment MechanismKnobMounting TypeScrew in cartridge valve
Cracking PressureN/APressure Control Range600-3000 PSI, 41.4-210 BAR
Flow Rate40 GAL/MIN, 151 L/MINMaximum Inlet Pressure Rating3500 PSI, 240 BAR
Standard Setting Pressure1500 PSI, 103.5 BARSeal MaterialNitrile
Body Materialn/aDivisionHydraulic Systems Division
Maximum Operating Pressure3500 psiMaximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)
Maximum Inlet Pressure Rating240 barMinimum Operating Temperature-30 °F
Installation Torque54 NmWeight0.5 lb
Maximum Flow Rate40 Gal/minFunctionDirect Acting
Actuation TypePressure SensingMaximum Pressure Setting3000 psi
Operation TypeAutomaticAdjustment MechanismKnob
Port Thread Sizen/aCavity SizeC16-2
Flow Rate40 Gal/minMaximum Operating Temperature+121 °C
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 steelOperating Temperature-34 to +121 °C
Mounting TypeScrew in cartridge valveMaximum Tank Pressure3000 psi
Standard Setting Pressure103.5 barPressure Control Range41.4-210 bar
Cracking PressureN/A psiReseat Pressure80% of pressure setting
Leak Rate10 @ 75% Crack Pressure drops/minConfigurationDifferential Area Relief, Differential Relief w/Reverse Flow Check
Pressure Control Sensitivity204 per turn psiMinimum Operating Pressure240 bar
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