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Parker PRH161K20 - 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. PRH161K20

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Products specifications

Attribute name	Attribute value
Seal Material	Nitrile	Body Material	n/a
Maximum Operating Pressure	5000 psi	Division	Hydraulic Cartridge Systems Division
Division	Hydraulic Systems Division	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Weight	0.34 kg	Minimum Operating Temperature	-34 °C
Maximum Flow Rate	40 Gal/min	Actuation Type	Pressure Sensing
Operation Type	Automatic	Adjustment Mechanism	Knob
Function	Pilot Operated	Maximum Tank Pressure	5000 psi
Port Thread Size	n/a	Cavity Size	C16-3
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	-34 to +121 °C	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Mounting Type	Screw in cartridge valve	Maximum Operating Temperature	+93 °C
Standard Setting Pressure	1000 psi	Maximum Pressure Setting	138 bar
Cracking Pressure	N/A psi	Flow Rate	151.4 L/min
Maximum Drain Flow Rate	0.5 Gal/min	Leak Rate	5 per 100 PSI (6.9 BAR) setting cc/min
Installation Torque	121-125 lb-ft	Pressure Control Range	13.8-138 bar
Pressure Control Sensitivity	37 per turn bar	Seal Material	Nitrile
Adjustment Mechanism	Knob	Mounting Type	Screw in cartridge valve
Cracking Pressure	N/A	Flow Rate	40 GAL/MIN, 151.4 L/MIN
Pressure Control Range	200-2000 PSI, 13.8-138 BAR

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