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Parker PRH081F20 - 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. PRH081F20

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Products specifications

Attribute name	Attribute value
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)	Minimum Operating Temperature	-35 °F
Maximum Operating Temperature	+200 °F	Maximum Flow Rate	30 L/min
Flow Rate	30 L/min	Actuation Type	Pressure Sensing
Weight	0.11 kg	Operation Type	Automatic
Function	Pilot Operated	Maximum Tank Pressure	5000 psi
Port Thread Size	n/a	Seal Material	D-Ring (Standard)
Cavity Size	C08-3	Configuration	Pressure Reducing/Relieving
Adjustment Mechanism	Fixed	Maximum Inlet Pressure Rating	380 bar
For Fluid Type	Mineral-based or synthetic hydraulic fluids	Valve Material	All parts steel. All operating parts hardened steel
Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4	Mounting Type	Screw in cartridge valve
Operating Temperature	-35 to +200 °F	Installation Torque	32-36 lb-ft
Pressure Control Sensitivity	N/A psi	Standard Setting Pressure	69 bar
Leak Rate	N/A cc/min	Maximum Pressure Setting	138 bar
Cracking Pressure	N/A psi	Pressure Control Range	6.9-138 bar
Maximum Drain Flow Rate	0.15 Gal/min	Flow Rate	8 GAL/MIN, 30 L/MIN
Mounting Type	Screw in cartridge valve	Cracking Pressure	N/A
Seal Material	D-Ring (Standard)	Adjustment Mechanism	Fixed
Pressure Control Range	100-2000 PSI, 6.9-138 BAR

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