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Diaphragm accumulators are used in low flow-rate hydraulic systems to store pressurized hydraulic fluid andrelease it as needed in order to maintain steady pump flow and pressure, dampen vibration and shock, and compensatefor leaks or thermal expansion in the system. They need to be charged with nitrogen before they can be used. They canalso be used as a source of power in an emergency. They are completely sealed and can be mounted in any position. Diaphragm accumulators are used in low flow-rate hydraulic systems to store pressurized hydraulic fluid and release it asneeded in order to maintain steady pump flow and pressur. dampen vibration and shock and compensate for leaks orthermal expansion. Accumulators can also be used as a source of power in an emercency. They arecompletely sealed and can be mounted in any position. Typically smaller than bladder or piston accumulators, diaphragmaccumulators have 8:1 compression ratio and are not repairable. They are most often used for mobile hydraulicapplications where high shock and vibration are encountered, such as forestry equipment, agricultural machinery, andmachine tools. Volume 20 cu in(0.32L). Thread: G1/2 Max Working Pressure 4786psi Working Temperature: -22℉~ 212℉/ -30℃-100℃ Compression Ratio 8:1 Item Weight 4.4 pounds Manufacturer Autovo Item model number G12-0.32L-New Package Dimensions 6.46 x 4.25 x 4.06 inches