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Parker PRH121K50 - 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. PRH121K50

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Products specifications

Attribute name	Attribute value
Seal Material	Nitrile	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	-30 °F
Maximum Operating Pressure	350 bar	Actuation Type	Pressure Sensing
Operation Type	Automatic	Adjustment Mechanism	Knob
Function	Pilot Operated	Maximum Tank Pressure	350 bar
Maximum Pressure Setting	5000 psi	Port Thread Size	n/a
Weight	0.27 kg	Cavity Size	C12-3
Configuration	Pressure Reducing/Relieving	Maximum Inlet Pressure Rating	5500 psi
For Fluid Type	Mineral-based or synthetic hydraulic fluids	Valve Material	All parts steel. All operating parts hardened steel
Operating Temperature	-30 to +250 °F	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Mounting Type	Screw in cartridge valve	Maximum Operating Temperature	+93 °C
Installation Torque	75 Nm	Leak Rate	N/A cc/min
Maximum Drain Flow Rate	0.25 Gal/min	Cracking Pressure	N/A psi
Standard Setting Pressure	172 bar	Flow Rate	113.7 L/min
Maximum Flow Rate	113.7 L/min	Pressure Control Range	500-5000 psi
Pressure Control Sensitivity	1711 per turn psi	Seal Material	Nitrile
Adjustment Mechanism	Knob	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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