Bosch Rexroth Bladder-Type Accumulators - HAB

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Bladder-type accumulators are used for energy storage, shock and vibration absorption, and leakage oil compensation or volume compensation in hydraulic systems.
They consist of a seamless pressure vessel (high-tensile steel) the interior of which is split into a gas and a fluid side by an elastic bladder. When the operating pressure is increased, hydraulic fluid flows into the accumulator and compresses the gas in the bladder until the gas pressure is identical to the fluid pressure. When the operating pressure is reduced, the gas expands again and feeds the hydraulic system with hydraulic fluid.

The 4X series accumulator has a nominal volume of 1 ... 50 litres and a maximum operating pressure of 350 bar.

Some of the features of the accumulator include:

  • Hydraulic accumulator as per Pressure Equipment Directive 97/23/EC.
  • Bladder material for different applications.
  • Use e.g. as energy storage in intermittent operation systems, energy reserve for emergencies, compensation of leakage losses, shock and vibration absorption.
Bosch Rexroth Bladder-Type Accumulators - HAB

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