Parker R04B4-10.0NS - 2 Way Pilot Operated Directional Control Valves

A pilot-operated, cartridge style screw-in hydraulic directional valve used in two way circuits with remote pilot actuation. Available in both normally-open and normally-closed orientation.
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Brand Parker
Part No. R04B4-10.0NS
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Products specifications
Attribute nameAttribute value
Maximum Operating Pressure420 barDivisionMobile Hydraulic Systems Division Europe
Flow Direction2-3 or 3-2Filter Efficiency RatingISO 4406 18/16/13, SAE Class 4
Maximum Flow Rate21 Gal/minSealed Pilot IncludedYes
FunctionDiverterMaximum Inlet Pressure Rating6000 psi
Valve MaterialAll parts steel. All operating parts hardened steelBody Materialn/a
DivisionHydraulic Cartridge Systems DivisionDrain OptionExternal
Seal MaterialNitrileFlow Rate21 Gal/min
Operation TypePilot OperatedLeak Rate55 @ 1450 PSI (100 BAR) cm3/min
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Minimum Operating Temperature-34 °C
For Fluid TypeMineral-based or synthetic hydraulic fluidsSwitching Pressure10 bar
Actuation TypePilot to OpenMaximum Operating Temperature+250 °F
Cavity SizeC10-4Installation Torque37 lb-ft
Operating Temperature-30 to +250 °FWeight0.37 lb
ConfigurationNormally ClosedPilot LocationExternal
Standard Flow Rate Setting47 L/minSeal MaterialNitrile
Sealed Pilot IncludedYesFlow Rate21 GAL/MIN, 80 L/MIN
ConfigurationNormally ClosedSwitching Pressure145 PSI, 10 BAR
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