ASME Bladder Accumulator

    All gas-loaded accumulators are pressurised vessels and it is recommended that safety consideration be given to the application in which they are used. A relief valve should always be fitted to the hydraulic system with the option of a burst disc to protect the accumulator. If there is a fire risk in the vicinity of the accumulator, then a fusible/eutectic plug should be fitted. See Installation and Servicing data sheet for information regarding installation of accumulators.    

    Via the delivery of pressurized hydraulic fluid at the accumulator oil port valve, the nitrogen that is stored within the accumulator bladder is compressed. As systems pressure drops, the nitrogen gas and the bladder expand and drive the hydraulic fliud out of the bladder accumulator back into the hydraulic system. Hydraulic energy is released. The bladder serves simultaneously as a media seperator or transfer barrier.