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Parker RAH201S50 - Pilot Operated Relief Valves

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).

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Brand Parker

Part No. RAH201S50

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Products specifications

Attribute name	Attribute value
Seal Material	Nitrile	Body Material	n/a
Maximum Operating Pressure	5000 psi	Division	Hydraulic Cartridge Systems Division
Division	Hydraulic Systems Division	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Minimum Operating Temperature	-30 °F	Flow Rate	100 Gal/min
Maximum Flow Rate	100 Gal/min	Configuration	Pressure Relief
Actuation Type	Pressure Sensing	Operation Type	Automatic
Adjustment Mechanism	Screw	Function	Pilot Operated
Maximum Tank Pressure	5000 psi	Maximum Pressure Setting	5000 psi
Cavity Size	C20-2	Maximum Inlet Pressure Rating	5500 psi
Weight	0.9 kg	Installation Torque	98 lb-ft
Maximum Operating Temperature	+121 °C	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Valve Material	All parts steel. All operating parts hardened steel	Operating Temperature	-30 to +250 °F
Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4	Mounting Type	Screw in cartridge valve
Standard Setting Pressure	172.4 bar	Pressure Control Range	500-5000 psi
Pressure Control Sensitivity	118 per turn bar	Leak Rate	5 per @ 100 psi (6.8 bar) setting cm3/min
Reseat Pressure	80% of pressure setting	Seal Material	Nitrile
Adjustment Mechanism	Screw	Maximum Inlet Pressure Rating	5500 PSI, 380 BAR
Pressure Control Range	500-5000 PSI, 34.5-350 BAR	Flow Rate	100 GAL/MIN, 379 L/MIN

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