Direct Acting Differential Area Relief Valves - RDH083T30V

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 RDH083T30V
$77.43
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Products specifications
Attribute nameAttribute value
UOMEASeal MaterialFluorocarbon
Adjustment MechanismTamper ResistantMounting TypeScrew in cartridge valve
Cracking PressureN/AFlow Rate12 GAL/MIN, 45 L/MIN
Maximum Inlet Pressure Rating5500 PSI, 380 BARStandard Setting Pressure1500 PSI, 103.5 BAR
Pressure Control Range1000-3000 PSI, 69-210 BARSeal MaterialFluorocarbon
Body Materialn/aMaximum Operating Pressure5500 psi
DivisionHydraulic Systems DivisionMaximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)
Minimum Operating Temperature-26 °CFunctionDirect Acting
Actuation TypePressure SensingMaximum Pressure Setting3000 psi
Cavity SizeC08-2Operation TypeAutomatic
Adjustment MechanismTamper ResistantMaximum Tank Pressure5000 psi
Port Thread Sizen/aMaximum Flow Rate12 Gal/min
Flow Rate45 L/minMaximum Inlet Pressure Rating5500 psi
Installation Torque23 lb-ftMaximum Operating Temperature+400 °F
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-15 to +400 °F
Mounting TypeScrew in cartridge valveWeight0.19 kg
Standard Setting Pressure1500 psiCracking PressureN/A psi
Leak Rate10 @ 75% Crack Pressure drops/minConfigurationDifferential Area Relief, Differential Relief w/Reverse Flow Check
Reseat Pressure75% of pressure settingPressure Control Range1000-3000 psi
Pressure Control Sensitivity27 per turn barMinimum Operating Pressure380 bar
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