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Direct Acting Relief Valves - RDH081S20

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).

Availability:	Backordered
Partner Available:	Backordered

SKU: RDH081S20

Products specifications

Attribute name	Attribute value
Weight	0.09 kg	Body Material	n/a
Minimum Operating Temperature	-35 °F	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Division	Hydraulic Systems Division	Maximum Operating Pressure	380 bar
Maximum Operating Temperature	+200 °F	Function	Direct Acting
Configuration	Pressure Relief	Actuation Type	Pressure Sensing
Cavity Size	C08-2	Operation Type	Automatic
Adjustment Mechanism	Screw	Maximum Tank Pressure	350 bar
Wire Mesh Screen Included	n/a	Seal Material	D-Ring (Standard)
Maximum Inlet Pressure Rating	380 bar	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 °F
Installation Torque	32-36 lb-ft	Flow Rate	1.9 L/min
Maximum Flow Rate	0.5 Gal/min	Standard Setting Pressure	1000 psi
Maximum Pressure Setting	2000 psi	Pressure Control Sensitivity	570 per turn psi
Pressure Control Range	6.9-138 bar	Reseat Pressure	90% of pressure setting
Leak Rate	0.33 @ 75% Crack Pressure cm3/min
Adjustment Mechanism	Screw	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

Product resources

Literature and Reference Materials