Bladder for Accumulator

Bladder for accumulator

A bladder accumulator is the most commonly used hydro-pneumatic accumulator. The bladder is filled with nitrogen and fitted in a welded or forged steel pressure vessel. … When the pressure drops, the compressed gas in the bladder expands and pushes the stored fluid into the hydraulic circuit.

Bladders are hydropneumatic accumulators with a flexible bladder as a separation element between compressible gas cushion and operating fluid.