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Parker RU104S12BN - 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. RU104S12BN

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Products specifications

Attribute name	Attribute value
Maximum Operating Temperature	+250	Weight	0.45
Body Material	n/a	Minimum Operating Temperature	-30
Maximum Inlet Pressure Rating	3600	Division	Hydraulic Systems Division
Seal Material	Nitrile	Pressure Control Range	800-1200
Actuation Type	Pressure Sensing	Flow Rate	0.25
Leak Rate	n/a	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Maximum Flow Rate	0.25	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Maximum Operating Pressure	3600	Maximum Pressure Setting	1200
Division	Hydraulic Valve Systems Division	Cavity Size	C10-4
Standard Setting Pressure	1000	Maximum Tank Pressure	3000
Installation Torque	37-41	Operating Temperature	-30 to +250
Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4	Valve Material	All parts steel. All operating parts hardened steel
Adjustment Mechanism	Screw	Function	Unloading Relief Valve
Adjustment Mechanism	Screw	Maximum Flow Rate	0.25 GAL/MIN, 1 L/MIN
Pressure Control Range	800-1200 PSI, 55.2-82.7 BAR	Seal Material	Nitrile

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