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Picture of Parker RDH083T15 - Direct Acting Differential Area Relief Valves

*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

Parker RDH083T15 - Direct Acting Differential Area Relief Valves

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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Brand Parker
Part No. RDH083T15
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Products specifications
Attribute nameAttribute value
Seal MaterialNitrileBody Materialn/a
Maximum Operating Pressure5500 psiDivisionHydraulic Systems Division
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Minimum Operating Temperature-34 °C
FunctionDirect ActingActuation TypePressure Sensing
Cavity SizeC08-2Operation TypeAutomatic
Adjustment MechanismTamper ResistantMaximum Tank Pressure5000 psi
Port Thread Sizen/aFlow Rate45 L/min
Maximum Flow Rate45 L/minMaximum Inlet Pressure Rating5500 psi
Maximum Operating Temperature+121 °CFor Fluid TypeMineral-based or synthetic hydraulic fluids
Valve MaterialAll parts steel. All operating parts hardened steelOperating Temperature-30 to +250 °F
Filter Efficiency RatingISO 4406 18/16/13, SAE Class 4Mounting TypeScrew in cartridge valve
Weight0.19 kgCracking PressureN/A psi
Leak Rate.66 @ 75% Crack Pressure cm3/minConfigurationDifferential Area Relief, Differential Relief w/Reverse Flow Check
Reseat Pressure75% of pressure settingMaximum Pressure Setting1500 psi
Standard Setting Pressure750 psiInstallation Torque31 Nm
Pressure Control Range6.9-103.5 barMinimum Operating Pressure380 bar
Pressure Control Sensitivity15 per turn barSeal MaterialNitrile
Adjustment MechanismTamper ResistantMounting TypeScrew in cartridge valve
Cracking PressureN/AFlow Rate12 GAL/MIN, 45 L/MIN
Maximum Inlet Pressure Rating5500 PSI, 380 BARPressure Control Range100-1500 PSI, 6.9-103.5 BAR
Standard Setting Pressure750 PSI, 51.7 BAR
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