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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).

Availability:	Backordered Estimated Lead Time: 36 days
Partner Available:	3 in stock

SKU RAH121S50

$159.88/each

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Products specifications

Attribute name	Attribute value
UOM	EA	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
Seal Material	Nitrile	Body Material	n/a
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Flow Rate	50 Gal/min
Minimum Operating Temperature	-34 °C	Maximum Operating Pressure	350 bar
Configuration	Pressure Relief	Actuation Type	Pressure Sensing
Operation Type	Automatic	Adjustment Mechanism	Screw
Function	Pilot Operated	Maximum Tank Pressure	5000 psi
Cavity Size	C12-2	Maximum Inlet Pressure Rating	5500 psi
Maximum Operating Temperature	+121 °C	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	Weight	0.22 kg
Maximum Pressure Setting	350 bar	Standard Setting Pressure	2500 psi
Pressure Control Range	34.5-350 bar	Pressure Control Sensitivity	1711 per turn psi
Reseat Pressure	80% of pressure setting	Leak Rate	82 @ 75% Crack Pressure cm3/min
Maximum Flow Rate	189.5 L/min	Installation Torque	124-130 Nm

Product resources

Literature and Reference Materials