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Parker RDH081T30 - 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. RDH081T30

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Products specifications

Attribute name	Attribute value
Body Material	n/a	Division	Hydraulic Systems Division
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Minimum Operating Temperature	-35 °F
Function	Direct Acting	Configuration	Pressure Relief
Actuation Type	Pressure Sensing	Maximum Pressure Setting	210 bar
Cavity Size	C08-2	Operation Type	Automatic
Adjustment Mechanism	Tamper Resistant	Wire Mesh Screen Included	n/a
Maximum Tank Pressure	5000 psi	Weight	0.2 lb
Seal Material	D-Ring (Standard)	Maximum Inlet Pressure Rating	5500 psi
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	Maximum Operating Temperature	+93 °C
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	1500 psi	Pressure Control Sensitivity	859 per turn psi
Pressure Control Range	200-3000 psi	Reseat Pressure	90% of pressure setting
Leak Rate	0.33 @ 75% Crack Pressure cm3/min	Adjustment Mechanism	Tamper Resistant
Seal Material	D-Ring (Standard)	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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