Pilot Operated Relief Valves - RAH121S10

Parker’s pilot operated relief valves are designed for continuous duty applications featuring great stability with low pressure drop; working with pressures up to 420 bar (6000 psi) and flows up to 400 lpm (106 gpm).
Availability: 5 in stock
SKU: RAH121S10
$148.80
Products specifications
Attribute nameAttribute value
Body MaterialN/ASeal MaterialNitrile
Minimum Operating Temperature-30 °FMaximum Operating Pressure5000 psi
DivisionHydraulic Systems DivisionDivisionHydraulic Cartridge Systems Division
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Weight0.22 kg
Maximum Flow Rate50 Gal/minFlow Rate50 Gal/min
Actuation TypePressure SensingConfigurationPressure Relief
Operation TypeAutomaticAdjustment MechanismScrew
FunctionPilot OperatedMaximum Tank Pressure5000 psi
Cavity SizeC12-2Maximum Inlet Pressure Rating5500 psi
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
Installation Torque92-96 lb-ftMaximum Pressure Setting69 bar
Standard Setting Pressure500 psiPressure Control Range100-1000 psi
Pressure Control Sensitivity334 per turn psiLeak Rate82 @ 75% Crack Pressure cm3/min
Reseat Pressure80% of pressure setting
Seal MaterialNitrileAdjustment MechanismScrew
Maximum Inlet Pressure Rating5500 PSI, 380 BARPressure Control Range100-1000 PSI, 6.9-69 BAR
Flow Rate50 GAL/MIN, 189.5 L/MIN
California Residents: Prop-65 Warning
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