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Pilot Operated Relief Valves - 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).

Availability:	Backordered
Partner Available:	Backordered

SKU: RAH081S20

Products specifications

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

Product resources

Literature and Reference Materials