Piston Accumulator

Piston Accumulators

We know accumulators!

The UK’s leading in-house manufacturer of Piston Accumulators with an excellent reputation for unsurpassed product quality and reliability. Previously sold through The Olaer Group, Hystat is represented in Australai by Exotech. With over 30 years experience which has made Hystat Systems are one of the leading manufacturers of Piston Accumulators and associated equipment in the United Kingdom.

Quality Assurance

Hystat incorporates efficiency, reliability and safety into all of its products.

  • All products 100% inspected
  • Standard tests carried out with either mineral oils or water glycol fluids
  • Continual test oil monitoring (minimum cleanliness on delivery to ISO4406:1999 Class 17/15/12)
  • Static and operational testing available
  • Third party (Lloyds, DNV, ABS etc.) design and test approval (on request or as directed by regulations)
  • Products supplied with design, production and inspection documentation
  • Component parts inspected and verified by a dedicated inspection team



Product Range

  • Piston Accumulators
  • Quick Release Pressure Vessels
  • Special Bladder Accumulators
  • High Pressure Gas Bottles
  • Volume / Condensate / Sampling Bottles
  • Stainless Steel Air Reservoirs
  • Intensifier / De-Intensifier Accumulators
  • Spring Loaded Accumulators
  • Mixing Bottles (Water Jet Cutting)


  • Support Brackets
  • Saddle Clamps
  • Burst Discs
  • Gas Valves
  • IsolationValves
  • Linear Transducers (4-20mA)
  • St-St Magnetic Flapper Indicator
  • “Stayput” Reed Switches


  • Steel & Aluminium Production
  • Offshore
  • Shipbound
  • Power Generation
  • Nuclear
  • Marine
  • Subsea
  • Industrial
  • Mining
  • Railway
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