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Parker RAH121S50 - 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:	6 In Stock

Brand Parker

Part No. RAH121S50

$159.88/each

Products specifications

Attribute name	Attribute value
UOM	EA	Configuration	Pressure Relief
Maximum Tank Pressure	5000 psi	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Pressure Control Sensitivity	1711 per turn psi	Function	Pilot Operated
Cavity Size	C12-2	Division	Hydraulic Cartridge Systems Division
Pressure Control Range	34.5-350 bar	Maximum Operating Temperature	+121 °C
Leak Rate	82 @ 75% Crack Pressure cm3/min	Operation Type	Automatic
Maximum Flow Rate	189.5 L/min	Body Material	N/A
Mounting Type	Screw in cartridge valve	Standard Setting Pressure	2500 psi
Installation Torque	124-130 Nm	Division	Hydraulic Systems Division
Minimum Operating Temperature	-34 °C	Operating Temperature	-34 to +121 °C
Flow Rate	50 Gal/min	Reseat Pressure	80% of pressure setting
Weight	0.22 kg	Actuation Type	Pressure Sensing
Maximum Operating Pressure	350 bar	Seal Material	Nitrile
Valve Material	All parts steel. All operating parts hardened steel	Maximum Pressure Setting	350 bar
Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Maximum Inlet Pressure Rating	5500 psi	Adjustment Mechanism	Screw
Seal Material	Nitrile	Adjustment Mechanism	Screw
Maximum Inlet Pressure Rating	5500 PSI, 380 BAR	Pressure Control Range	500-5000 PSI, 34.5-350 BAR
Flow Rate	50 GAL/MIN, 189.5 L/MIN

Product resources

Literature and Reference Materials