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Parker RU101K20C - Unloading Relief Valves

Parker’s unloading pressure control valves automatically charge and maintain a specific pressure range within accumulators by loading and unloading pump flow. Usable with fixed or variable pumps and pressure of 420 bar (6000 psi) and flow up to 1 gpm.

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Brand Parker

Part No. RU101K20C

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Products specifications

Attribute name	Attribute value
Division	Hydraulic Valve Systems Division	Pressure Control Range	100-1000
Flow Rate	1	Standard Setting Pressure	1000
Maximum Tank Pressure	3000	Adjustment Mechanism	Knob
Leak Rate	10 (port 2 to 3), 60 (port 1 to 2)	Weight	0.5
Operating Temperature	-30 to +250	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Maximum Operating Pressure	3500	Function	Unloading Relief Valve
Valve Material	All parts steel. All operating parts hardened steel	Maximum Operating Temperature	+250
Installation Torque	16	Body Material	n/a
Minimum Operating Temperature	-30	Division	Hydraulic Systems Division
Actuation Type	Pressure Sensing	Seal Material	Nitrile
Maximum Flow Rate	1	Cavity Size	C10-3
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Maximum Inlet Pressure Rating	3500
Maximum Pressure Setting	2000	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Seal Material	Nitrile	Adjustment Mechanism	Knob
Maximum Flow Rate	1 GAL/MIN, 3.75 L/MIN	Pressure Control Range	150-2000 PSI, 10.3-138 BAR

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