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Hydraulic diaphragm accumulator applications:

Diaphragm accumulators are hydro-pneumatic accumulators with a flexible diaphragm as a separation element between the compressible gas cushion and the operating fluid. They are designed as weld-type or as screw-type options and are available in various different steels and elastomers as well as different gas ports. They can for numerous applications including:

  • Energy storage for saving pump drive power
  • Energy reserve for emergencies
  • Compensation for losses due to leakage
  • Impact and vibration damping
  • Volume compensation
  • Suspension element on vehicles
  • Shock absorption in the case of mechanical impact

The benefits of using diaphragm accumulators:

  • Design optimised for function and weight
  • Choice of installation positions
  • No pressure differential between fluid side and gas side
  • Low-maintenance and long service life

Inspecting and testing your accumulators

Hytec Fluid Technology (HFT), a Bosch Rexroth South Africa Group Company, has an accumulation certification centre incorporating an accumulator test bench to help clients comply with regulations governing accumulator usage.

Accumulators are subjected to internal and external inspections as well as a hydrostatic pressure test and HFT is authorised to provide certification of manufacture and the verification signature of an Approved Inspection Authority.

The Bosch Rexroth South Africa Group of Companies brings the world’s leading hydraulics, pneumatics and automation brands to sub-Saharan Africa!