High Pressure Hydraulic Accumulator Bladder

    High Pressure Hydraulic Accumulator Bladder.    

    Fluids are practically incompressible and cannot, therefore, store pressure energy. So, the utilisation of compressibility of a gas (nitrogen) in hydraulic accumulators is for storing fluids. That`s why HYDAC bases its piston accumulators on this principle.

    Indeed, a bladder accumulator consists of a fluid section and a gas section with the bladder acting as the gas-proof screen. The connection of the fluid around the bladder to the hydraulic circuit results on the bladder accumulator drawing in the fluid. It happens when the pressure increases, leading to the compression of the gas. When the pressure drops, the compressed gas expands and forces the stored fluid into the circuit.

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