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Parker RAH161K50 - 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. RAH161K50

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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)
Maximum Flow Rate	80 Gal/min	Minimum Operating Temperature	-34 °C
Configuration	Pressure Relief	Actuation Type	Pressure Sensing
Operation Type	Automatic	Adjustment Mechanism	Knob
Function	Pilot Operated	Maximum Tank Pressure	5000 psi
Cavity Size	C16-2	Weight	0.75 lb
Maximum Inlet Pressure Rating	380 bar	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	Maximum Pressure Setting	350 bar
Standard Setting Pressure	172.4 bar	Pressure Control Sensitivity	131.7 per turn bar
Pressure Control Range	500-5000 psi	Installation Torque	121-125 lb-ft
Reseat Pressure	90% of pressure setting	Leak Rate	5 per @ 100 psi (6.8 bar) setting cm3/min
Flow Rate	302.8 L/min	Seal Material	Nitrile
Adjustment Mechanism	Knob	Maximum Inlet Pressure Rating	5500 PSI, 380 BAR
Pressure Control Range	500-5000 PSI, 34.5-350 BAR	Flow Rate	80 GAL/MIN, 302.8 L/MIN

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