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Parker RAH081F20 - 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. RAH081F20

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Products specifications

Attribute name	Attribute value
Flow Rate	20	Minimum Operating Temperature	-35
Body Material	n/a	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
Seal Material	D-Ring (Standard)	Maximum Flow Rate	20
Adjustment Mechanism	Fixed	Maximum Operating Temperature	+200
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	Mounting Type	Screw in cartridge valve
Operating Temperature	-35 to +200	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	Maximum Inlet Pressure Rating	5000 PSI, 350 BAR
Seal Material	D-Ring (Standard)	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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