Direct Acting Relief Valves - RDH082S50N

Parker’s direct acting relief valves are available in several cavity sizes and are designed for continuous duty applications with pressures up to 420 bar (6000 psi) and flows up to 200 lpm (53 gpm).
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SKU: RDH082S50N
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Products specifications
Attribute nameAttribute value
Weight0.18 kgSeal MaterialNitrile
Body Materialn/aMaximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)
DivisionHydraulic Systems DivisionMaximum Operating Pressure380 bar
Minimum Operating Temperature-34 °CMaximum Flow Rate30 L/min
Flow Rate30 L/minFunctionDirect Acting
ConfigurationPressure ReliefActuation TypePressure Sensing
Maximum Pressure Setting5000 psiCavity SizeC08-2
Operation TypeAutomaticAdjustment MechanismScrew
Maximum Tank Pressure5000 psiWire Mesh Screen Includedn/a
Maximum Inlet Pressure Rating5500 psiInstallation Torque43-49 Nm
For Fluid TypeMineral-based or synthetic hydraulic fluidsMaximum Operating Temperature+250 °F
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
Standard Setting Pressure2500 psiPressure Control Range500-5000 psi
Leak Rate5 @ 75% Crack Pressure drops/minReseat Pressure85% of pressure setting
Pressure Control Sensitivity54 per turn bar
Seal MaterialNitrileFlow Rate8 GAL/MIN, 30 L/MIN
Adjustment MechanismScrewMaximum Inlet Pressure Rating5500 PSI, 380 BAR
Pressure Control Range500-5000 PSI, 34.5-350 BAR
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