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Parker RAH081F20N - 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. RAH081F20N

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Products specifications

Attribute name	Attribute value
Flow Rate	20	Seal Material	Nitrile
Body Material	n/a	Minimum Operating Temperature	-30
Maximum Operating Pressure	5000	Division	Hydraulic Valve Systems Division
Division	Hydraulic Systems Division	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Weight	0.2	Configuration	Pressure Relief
Actuation Type	Pressure Sensing	Cavity Size	C08-2
Operation Type	Automatic	Function	Pilot Operated
Maximum Tank Pressure	5000	Pressure Control Sensitivity	n/a
Maximum Inlet Pressure Rating	5000	Maximum Flow Rate	20
Adjustment Mechanism	Fixed	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Valve Material	All parts steel. All operating parts hardened steel	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Operating Temperature	-30 to +250	Maximum Operating Temperature	+250
Mounting Type	Screw in cartridge valve	Installation Torque	32-36
Standard Setting Pressure	1000	Maximum Pressure Setting	2000
Pressure Control Range	100-2000	Leak Rate	5 per @ 100 psi (6.8 bar) setting
Reseat Pressure	90% of pressure setting	Seal Material	Nitrile
Maximum Inlet Pressure Rating	5000 PSI, 350 BAR	Adjustment Mechanism	Fixed
Pressure Control Range	100-2000 PSI, 6.9-138 BAR	Flow Rate	20 GAL/MIN, 75.8 L/MIN

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