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Parker RDH042S50V - 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. RDH042S50V

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Products specifications

Attribute name	Attribute value
Weight	0.03 kg	Seal Material	Fluorocarbon
Body Material	n/a	Division	Hydraulic Systems Division
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Minimum Operating Temperature	-26 °C
Function	Direct Acting	Configuration	Pressure Relief
Actuation Type	Pressure Sensing	Operation Type	Automatic
Adjustment Mechanism	Screw	Wire Mesh Screen Included	n/a
Maximum Tank Pressure	350 bar	Maximum Pressure Setting	5000 psi
Cavity Size	C04-2	Maximum Flow Rate	1 Gal/min
Maximum Inlet Pressure Rating	5500 psi	Flow Rate	3.8 L/min
Maximum Operating Temperature	+400 °F	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Valve Material	All parts steel. All operating parts hardened steel	Operating Temperature	-15 to +400 °F
Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4	Mounting Type	Screw in cartridge valve
Maximum Operating Pressure	380 bar	Installation Torque	10 Nm
Standard Setting Pressure	172.4 bar	Pressure Control Sensitivity	118 per turn bar
Reseat Pressure	80% of pressure setting	Leak Rate	0.66 @ 75% Crack Pressure cm3/min
Pressure Control Range	103.4-350 bar	Seal Material	Fluorocarbon
Adjustment Mechanism	Screw	Flow Rate	1 GAL/MIN, 3.8 L/MIN
Maximum Inlet Pressure Rating	5500 PSI, 380 BAR	Pressure Control Range	1500-5000 PSI, 103-350 BAR

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