Hydraulic Bladder Accumulator is an important device used in hydraulic systems to store and balance hydraulic fluid pressure fluctuations. It usually consists of a shell, a diaphragm (bladder), and a storage medium (liquid or gas). The bladder is divided into two areas inside the accumulator: One is the liquid area, used to store liquids, the other is the gas area, which is used to store compressed gas (such as nitrogen).