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Parker RDH081F20N - Direct Acting Relief Valves

Parker’s direct acting relief valves are available in several cavity sizes and are designed for continuous duty applications with pressures up to 420 bar (6000 psi) and flows up to 200 lpm (53 gpm).

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Brand Parker

Part No. RDH081F20N

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Products specifications

Attribute name	Attribute value
Seal Material	Nitrile	Body Material	n/a
Minimum Operating Temperature	-30	Division	Hydraulic Systems Division
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Weight	0.2
Maximum Operating Pressure	5500	Function	Direct Acting
Configuration	Pressure Relief	Actuation Type	Pressure Sensing
Cavity Size	C08-2	Operation Type	Automatic
Wire Mesh Screen Included	n/a	Maximum Tank Pressure	5000
Pressure Control Sensitivity	n/a	Adjustment Mechanism	Fixed
Maximum Inlet Pressure Rating	5500	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
Maximum Flow Rate	0.5	Flow Rate	0.5
Standard Setting Pressure	1000	Maximum Pressure Setting	2000
Pressure Control Range	100-2000	Reseat Pressure	90% of pressure setting
Leak Rate	5 @ 75% Crack Pressure	Seal Material	Nitrile
Adjustment Mechanism	Fixed	Maximum Inlet Pressure Rating	5500 PSI, 380 BAR
Pressure Control Range	100-2000 PSI, 6.9-138 BAR	Flow Rate	0.5 GAL/MIN, 1.9 L/MIN

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