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Pilot Operated Relief Valves - RAH081S20

Name: Pilot Operated Relief Valves - RAH081S20
SKU: RAH081S20

Parker’s pilot operated relief valves are designed for continuous duty applications featuring great stability with low pressure drop; working with pressures up to 420 bar (6000 psi) and flows up to 400 lpm (106 gpm).

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SKU RAH081S20

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Products specifications

Attribute name	Attribute value
Adjustment Mechanism	Screw	Maximum Inlet Pressure Rating	5000 PSI, 350 BAR
Seal Material	D-Ring (Standard)	Pressure Control Range	100-2000 PSI, 6.9-138 BAR
Flow Rate	20 GAL/MIN, 75.8 L/MIN	Body Material	n/a
Division	Hydraulic Cartridge Systems Division	Division	Hydraulic Systems Division
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Minimum Operating Temperature	-35 °F
Maximum Operating Pressure	350 bar	Configuration	Pressure Relief
Actuation Type	Pressure Sensing	Cavity Size	C08-2
Operation Type	Automatic	Adjustment Mechanism	Screw
Function	Pilot Operated	Maximum Tank Pressure	350 bar
Maximum Inlet Pressure Rating	350 bar	Weight	0.2 lb
Seal Material	D-Ring (Standard)	Maximum Flow Rate	20 Gal/min
Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Valve Material	All parts steel. All operating parts hardened steel	Mounting Type	Screw in cartridge valve
Maximum Operating Temperature	+93 °C	Operating Temperature	-37 to +93 °C
Installation Torque	32-36 lb-ft	Standard Setting Pressure	1000 psi
Maximum Pressure Setting	2000 psi	Pressure Control Sensitivity	570 per turn psi
Pressure Control Range	6.9-138 bar	Leak Rate	5 per @ 100 psi (6.8 bar) setting cm3/min
Reseat Pressure	90% of pressure setting	Flow Rate	75.8 L/min

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