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Direct Acting Relief Valves - RDH081S20

Name: Direct Acting Relief Valves - RDH081S20
SKU: 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).

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SKU RDH081S20

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Products specifications

Attribute name	Attribute value
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	Body Material	n/a
Division	Hydraulic Systems Division	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Minimum Operating Temperature	-35 °F	Maximum Operating Temperature	+200 °F
Weight	0.09 kg	Function	Direct Acting
Configuration	Pressure Relief	Actuation Type	Pressure Sensing
Cavity Size	C08-2	Operation Type	Automatic
Adjustment Mechanism	Screw	Wire Mesh Screen Included	n/a
Maximum Tank Pressure	350 bar	Seal Material	D-Ring (Standard)
Maximum Inlet Pressure Rating	380 bar	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
For Fluid Type	Mineral-based or synthetic hydraulic fluids	Valve Material	All parts steel. All operating parts hardened steel
Mounting Type	Screw in cartridge valve	Operating Temperature	-35 to +200 °F
Installation Torque	32-36 lb-ft	Maximum Operating Pressure	380 bar
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

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