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Fully automatic water filtration without process interruption (Bernoulli principle)

In many industrial plants, low-priced river or sea water is used for process cooling, which naturally shows a high degree of contamination. In this case, heat exchangers and the entire cooling system need to be protected from pollutions continuously

The self-cleaning automatic filter of company HETA, which works according to the Bernoulli principle, manages pollution loads at low differential pressure.

Characteristics of the filter system

  • Characteristics of the filter system:
  • Suitable for filter fineness range between 0.2 mm – 4 mm
  • Flow rates up to 8000 m³/h
  • Time or differential pressure controlled self-cleaning
  • Ex-design possible


The filter vessel can be produced of stainless steel, carbon steel (with or without inner lining) or glass fibre reinforced plastic (GFK).

Benefits of the Filter System

  • Self-cleaning filter element
  • Cleaning without filtration interruption
  • Compact design
  • Horizontal or vertical construction possible
  • Suitable for high flow rates
  • Simple maintenance
  • The control of the filter can be integrated in a central controlling system.


  • Slot type cylinder
  • Perforated plate cylinder

The filter insert can be supplied made of stainless steel, titanium or Super Duplex materials. Other material can be supplied upon request.


  • Differential pressure transmitter / manometer
  • Shut-off unit (ball valve or butterfly valve)
  • Control (IPC / LOGO / SPS)
  • Proximity switch
  • Pneumatic components (pneumatic cylinder / switching components / piping accessories)