Model HS - Hydrasieve Screen



The Hydrasieve screen HS is a highly efficient screen designed for solid/liquid separation. The simple design and robust construction of the Hydrasieve provide trouble-free operation. Frames and screen plates are made of stainless steel. Additional options are available in order to improve operation of the screen - rotating or motorized spray system or protective cover.

Operation of the Hydrasieve screen HS is based on the Coandă effect, meaning that the liquid to be screened forms a hydraulic attachment to the bars of the screen plate. These bars, with triangular section, have rounded angles and a wave configuration, as opposed to being straight. Thus, the liquid passes through the slots while the separated solids stay on the front face of the screen plate.

Principle of operation

The screen plate has three distinct angles. This arrangement ensures

  • Elimination of the majority of the liquid
  • Deceleration of the screenings
  • Drainage

The screen plate is supported by a frame which initially ensures quietness and even distribution of the effluent over the entire width of the unit and then accelerates the liquid down the screen plate. The filtered liquid is collected in the screen base. The screen plate and the frame form the Hydrasieve screen HS.

Advantages from simple design and robust construction

  • No moving parts, no motor
  • Very low installation costs, no maintenance
  • Only requires periodic cleaning
  • Quiet operation
  • Wave shape of the bars provides the Hydrasieve screen HS with its self-cleaning effect


  • Domestic sewage
  • Storm water screening
  • Wash water from sand filters
  • Sewer cleaning tasks

Raw intake water

  • Screening industrial intake water
  • Screening fire sprinkler water

Industrial effluents

  • Fruit and vegetable canning
  • Wine producers and distilleries
  • Meat and processed meals industry
  • Slaughterhouse
  • Fish processing
  • Breweries and dairies
  • Pig manure
  • Textiles and laundries
  • Tanneries and fellmongeries
  • Chemical, pharmaceutical, refineries
  • Pulp and paper
  • Industrial effluents
  • Recycling transport water

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