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Parker RAH121S20 - Pilot Operated Relief Valves

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).

AFP Availability:	Quote Required
Partner Available:	Quote Required

Brand Parker

Part No. RAH121S20

$91.67/each

Products specifications

Attribute name	Attribute value
UOM	EA	Standard Setting Pressure	1000
Mounting Type	Screw in cartridge valve	Leak Rate	82 @ 75% Crack Pressure
Body Material	N/A	Operating Temperature	-30 to +250
Maximum Flow Rate	50	Minimum Operating Temperature	-30
Division	Hydraulic Systems Division	Operation Type	Automatic
Reseat Pressure	80% of pressure setting	Flow Rate	50
Installation Torque	92-96	Actuation Type	Pressure Sensing
Seal Material	Nitrile	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Maximum Pressure Setting	2000	Maximum Inlet Pressure Rating	5500
Weight	0.48	Adjustment Mechanism	Screw
Valve Material	All parts steel. All operating parts hardened steel	Maximum Operating Pressure	5000
Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4	Function	Pilot Operated
Maximum Tank Pressure	5000	Pressure Control Range	200-2000
Pressure Control Sensitivity	539 per turn	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Cavity Size	C12-2	Division	Hydraulic Valve Systems Division
Configuration	Pressure Relief	Maximum Operating Temperature	+250
Seal Material	Nitrile	Adjustment Mechanism	Screw
Maximum Inlet Pressure Rating	5500 PSI, 380 BAR	Pressure Control Range	200-2000 PSI, 13.8-138 BAR
Flow Rate	50 GAL/MIN, 189.5 L/MIN

Product resources

Literature and Reference Materials