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Parker PRH121S50V - Pilot Operated Pressure Reducing Relieving Valves

Parker’s pilot operated acting reducing & relieving valves are used in applications where specific functions require reduced and regulated pressure. Capable of flows up to 150 lpm (40 gpm) and pressures up to 380 bar (5500 psi).

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Brand Parker

Part No. PRH121S50V

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Products specifications

Attribute name	Attribute value
Seal Material	Fluorocarbon	Body Material	n/a
Division	Hydraulic Cartridge Systems Division	Division	Hydraulic Systems Division
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Minimum Operating Temperature	-26 °C
Maximum Operating Pressure	350 bar	Actuation Type	Pressure Sensing
Operation Type	Automatic	Adjustment Mechanism	Screw
Function	Pilot Operated	Maximum Tank Pressure	5000 psi
Port Thread Size	n/a	Weight	0.6 lb
Cavity Size	C12-3	Maximum Flow Rate	30 Gal/min
Configuration	Pressure Reducing/Relieving	Maximum Inlet Pressure Rating	380 bar
Installation Torque	56 lb-ft	Maximum Operating Temperature	+204 °C
For Fluid Type	Mineral-based or synthetic hydraulic fluids	Valve Material	All parts steel. All operating parts hardened steel
Operating Temperature	-26 to +204 °C	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Mounting Type	Screw in cartridge valve	Leak Rate	N/A cc/min
Maximum Drain Flow Rate	0.94 L/min	Maximum Pressure Setting	350 bar
Standard Setting Pressure	2500 psi	Cracking Pressure	N/A psi
Flow Rate	113.7 L/min	Pressure Control Range	34.5-350 bar
Pressure Control Sensitivity	118 per turn bar	Seal Material	Fluorocarbon
Adjustment Mechanism	Screw	Mounting Type	Screw in cartridge valve
Cracking Pressure	N/A	Flow Rate	30 GAL/MIN, 113.7 L/MIN
Pressure Control Range	500-5000 PSI, 34.5-350 BAR

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