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Parker RDH042K30 - 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. RDH042K30

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Products specifications

Attribute name	Attribute value
Seal Material	Nitrile	Weight	0.03 kg
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	-34 °C	Function	Direct Acting
Configuration	Pressure Relief	Actuation Type	Pressure Sensing
Maximum Pressure Setting	210 bar	Operation Type	Automatic
Adjustment Mechanism	Knob	Wire Mesh Screen Included	n/a
Maximum Tank Pressure	5000 psi	Cavity Size	C04-2
Maximum Inlet Pressure Rating	5500 psi	Flow Rate	3.8 L/min
Maximum Flow Rate	3.8 L/min	Installation Torque	7 lb-ft
Maximum Operating Temperature	+121 °C	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Valve Material	All parts steel. All operating parts hardened steel	Operating Temperature	-30 to +250 °F
Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4	Mounting Type	Screw in cartridge valve
Standard Setting Pressure	1500 psi	Reseat Pressure	80% of pressure setting
Leak Rate	0.66 @ 75% Crack Pressure cm3/min	Pressure Control Range	6.9-210 bar
Pressure Control Sensitivity	105 per turn bar	Seal Material	Nitrile
Adjustment Mechanism	Knob	Flow Rate	1 GAL/MIN, 3.8 L/MIN
Maximum Inlet Pressure Rating	5500 PSI, 380 BAR	Pressure Control Range	100-3000 PSI, 6.9-210 BAR

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