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Parker A04B2HWN - 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. A04B2HWN

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Products specifications

Attribute name	Attribute value
Seal Material	Nitrile	Body Material	n/a
For Fluid Type	Mineral-based Hydraulic Fluids	Filter Efficiency Rating	ISO 4406 18/16/13
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Maximum Operating Temperature	121 °C
Minimum Operating Temperature	-34 °C	Maximum Operating Pressure	420 bar
Function	Direct Acting	Configuration	Pressure Relief
Mounting Type	Screw-in Cartridge	Actuation Type	Pressure Sensing
Maximum Pressure Setting	210 bar	Division	Mobile Hydraulic Systems Division Europe
Leak Rate	0.33 cm3/min @ 1450 Psi (100 bar)	Operation Type	Automatic
Valve Material	Hardened Steel (all operating parts)	Reseat Pressure	n/a
Adjustment Mechanism	Knob	Maximum Tank Pressure	6000 psi
Operating Temperature	-30 to 250 °F	Wire Mesh Screen Included	n/a
Maximum Inlet Pressure Rating	6000 psi	Weight	0.28 kg
Flow Rate	100 L/min	Cavity Size	C10-2
Maximum Flow Rate	26 Gal/min	Installation Torque	50 Nm
Pressure Control Range	5 to 210 bar	Standard Setting Pressure	1450 psi
Pressure Control Sensitivity	305 psi Per Turn	Seal Material	Nitrile
Adjustment Mechanism	Knob	Maximum Inlet Pressure Rating	6000 PSI, 420 BAR
Flow Rate	28 GAL/MIN, 100 L/MIN	Pressure Control Range	72-3000 PSI, 5-210 BAR

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