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Parker RDH081K20 - 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. RDH081K20

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Products specifications

Attribute name	Attribute value
Minimum Operating Temperature	-35	Body Material	n/a
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	Adjustment Mechanism	Knob
Wire Mesh Screen Included	n/a	Maximum Tank Pressure	5000
Seal Material	D-Ring (Standard)	Maximum Inlet Pressure Rating	5500
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	Maximum Flow Rate	0.5
Flow Rate	0.5	Standard Setting Pressure	1000
Maximum Pressure Setting	2000	Pressure Control Range	100-2000
Pressure Control Sensitivity	570 per turn	Reseat Pressure	90% of pressure setting
Leak Rate	5 @ 75% Crack Pressure	Adjustment Mechanism	Knob
Seal Material	D-Ring (Standard)	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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