*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

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).

Manufacturer: Parker

Availability:	Backordered Estimated Lead Time: 36 days
Partner Available:	6 in stock

SKU RAH121S50

$148.16/each

Bypass upcharge for backordered quantity

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

Product resources

Literature and Reference Materials