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Parker RDH081K30N - 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. RDH081K30N

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Products specifications

Attribute name	Attribute value
Seal Material	Nitrile	Body Material	n/a
Maximum Operating Pressure	5500 psi	Division	Hydraulic Systems Division
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Minimum Operating Temperature	-30 °F
Weight	0.09 kg	Function	Direct Acting
Configuration	Pressure Relief	Actuation Type	Pressure Sensing
Maximum Pressure Setting	210 bar	Cavity Size	C08-2
Operation Type	Automatic	Adjustment Mechanism	Knob
Wire Mesh Screen Included	n/a	Maximum Tank Pressure	5000 psi
Maximum Inlet Pressure Rating	5500 psi	Maximum Operating Temperature	+250 °F
For Fluid Type	Mineral-based or synthetic hydraulic fluids	Valve Material	All parts steel. All operating parts hardened steel
Operating Temperature	-34 to +121 °C	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Mounting Type	Screw in cartridge valve	Installation Torque	32-36 lb-ft
Flow Rate	0.5 Gal/min	Maximum Flow Rate	1.9 L/min
Pressure Control Sensitivity	58.9 per turn bar	Pressure Control Range	13.8-210 bar
Reseat Pressure	90% of pressure setting	Leak Rate	5 @ 75% Crack Pressure drops/min
Standard Setting Pressure	103.4 bar	Seal Material	Nitrile
Adjustment Mechanism	Knob	Maximum Inlet Pressure Rating	5500 PSI, 380 BAR
Pressure Control Range	200-3000 PSI, 13.8-210 BAR	Flow Rate	0.5 GAL/MIN, 1.9 L/MIN

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