Self-cleaning automatic
Bernoulli filters

Bernoulli System pioneered the application of the Bernoulli principle to water filtration. The distinguishing feature of a Bernoulli Filter is a disc mounted on a pneumatic cylinder, which enables contactless cleaning of the filter. The cleaning sequence itself is automatic and continuous, requiring no manual intervention

Bernoulli automatic filters

Single and multi-basket self-cleaning filters

BSP Self-cleaning Bernoulli filter

BSP Line

Made in PVC, the BSP product line consists of three self-cleaning filter models, from DN65 (2,5") to DN100 (4"), handling capacities of up to 130 m³/h

  • Developed to offer a cost-effective option for small capacities

  • Filter body is made of PVC (polyvinyl chloride), which provides high chemical resistance in seawater applications

  • 3 sizes ranging from DN65 to DN100

  • Capacities up to 130 m³/h

  • Operating pressure range up to 10 bar(g)

BSS Automatic Bernoulli filter

BSS Line

The BSS product line consists of seven self-cleaning filter models in sizes from DN80 to DN400, handling capacities of up to 2,000 m³/h

  • Designed to meet the requirements of industries where stainless steel 316 is the material of choice

  • Filter body is made of stainless steel 316

  • 7 sizes ranging from DN80 to DN400

  • Capacities up to 2,000 m³/h

  • Operating pressure range up to 10 bar(g)

BSG Automatic Bernoulli filter

BSG Line

Made of GRP, the BSG product line consists of eleven self-cleaning filter models in sizes from DN100 to DN700, handling capacities of up to 6,400 m³/h

  • Developed to meet the tough corrosion challenges faced by products operating in seawater-based systems

  • Filter body is made of GRP , which further strengthens the advantages of the filter system in terms of material durability and very large weight savings

  • 11 sizes ranging from DN100 to DN700

  • Capacities up to  6,400 m³/h

  • Operating pressure range up to 10 bar(g)

BMG Double-basket self-cleaning Bernoulli filter

BMG Line

The double-basket BMG product line consists of four self-cleaning filter models in sizes from DN400 to DN800, covering a capacity range of up to 8,400 m³/h

  • Fine filtration down to 100 microns achievable thanks to the use of multiple filter baskets in one filter body

  • Filter body is made of GRP (Glass fibre Reinforced Polyester), which is the superior material for seawater applications

  • Equipped with a sophisticated control system, powered by a PLC and a HMI colour touch screen

  • 4 sizes ranging from DN400 to DN800

  • Capacities up to  8,400 m³/h

  • Operating pressure range up to 10 bar(g)

  • Reduce the content of suspended solids in water from natural sources in general

  • Pre-filtration in water treatment

  • Power generation, petrochemicals and HVAC, steelmaking, aquaculture, pharmaceuticals, pulp and paper,
    and foods and beverages

  • Heat exchangers plate protection

  • Sensitive process equipment protection such as spray nozzles

Working principle


The flushing secuence is initiated by a timer setting or triggered by a differential pressure sensor before any blockage of the filter basket causes flow reduction


In the pre-flushing stage, the flushing valve opens and larger particles are flushed out


During the flushing sequence, a especially shaped flushing disc mounted on a pneumatic cylinder enters the filter basket and creates a gap between them

Automatic Bernoulli filter


As the flow velocity increases locally around the disc, the static pressure is reduced in accordance with the Bernoulli Principle.

The direction of the flow is reversed, thus releasing particles which are stuck to the surface of the filter basket


The released particles are led out from the filter through the flushing outlet

Specialists in

pumping equipment , water treatment and sewage purification

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