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Parker RAH201T50 - 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. RAH201T50

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Products specifications

Attribute name	Attribute value
Seal Material	Nitrile	Body Material	n/a
Division	Hydraulic Cartridge Systems Division	Division	Hydraulic Systems Division
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Minimum Operating Temperature	-30 °F
Weight	2 lb	Maximum Operating Pressure	350 bar
Maximum Flow Rate	379 L/min	Configuration	Pressure Relief
Actuation Type	Pressure Sensing	Operation Type	Automatic
Adjustment Mechanism	Tamper Resistant	Function	Pilot Operated
Maximum Tank Pressure	350 bar	Maximum Pressure Setting	5000 psi
Cavity Size	C20-2	Maximum Inlet Pressure Rating	380 bar
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	-34 to +121 °C	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Mounting Type	Screw in cartridge valve	Flow Rate	379 L/min
Standard Setting Pressure	172.4 bar	Pressure Control Range	34.5-350 bar
Pressure Control Sensitivity	1711 per turn psi	Leak Rate	5 per @ 100 psi (6.8 bar) setting cm3/min
Reseat Pressure	80% of pressure setting	Seal Material	Nitrile
Adjustment Mechanism	Tamper Resistant	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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