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Passavant Rotating Bar Screen RBS

Separation of solids or contraries from a liquid phase, including conveying of screenings, compaction and discharge for further disposal. With the Passavant® rotating bar screen RBS the Aqseptence Group offers a compact system for automatic waste water treatment.

Unique Selling Point

  • Bar Rack Drum with streamlined bar profile (form factor 0,92) to reduce the hydraulic losses and maximize the throughput
  • Electrically monitored pressing zone with an inspection flap for maintenance and inspection
  • Adjustable support feet for easy mounting
  • Vertical discharge into a container, conveyor system or bagging device for hygienic disposal
  • No bottom step required
  • Small height above the top edge of the channel or larger discharge heights possible in case of limited room height


The process- or waste water enters the bar screen frontally, which is installed in 35° inclined arrangement and can be set up in a channel or a tank. The solids carried in the waste water get stuck on the bars of the rack inside the drum and induce an accumulation of the waste water. Once the upstream water level or differential level reaches a pre-set height, the screen will automatically enter a cleaning cycle.
During the cleaning cycle the rotating rake lifts the collected solids to the upper vertex and drops it into the centrically arranged spiral press. This discharge movement is supported by the spray bar, which flushes off captured solids, furthermore an additional cleaning comb removes all remaining residues. The screenings are transported, washed, drained and compacted, whereby the volume will be reduced by 70% and a degree of dryness of about 35-40% or more can be achieved (depends on the screenings).
An additional washing device can be installed in the pressing zone in accordance with the requirements for organic washout. The Passavant® rotating bar screen RBS can be mounted in open concrete channel or integrated into a hygienically encapsulated stainless steel container (e.g. septage receiving station).


Coarse Screens

Aqseptence Group supplies the entire range screening systems. Bar screens with grab cleaner, climber screens and revolving chain screens have proved to be highly successful in coarse screening processes.


Locations and Contact


Aqseptence Group Carpi Srl, Limidi

Sales and Manufacturing Location
Via Pitagora 30
41010 Limidi Di Soliera, MO

Tel: +39 059 525720

Fax: +39 059 525443



Aqseptence Group SAS, Availles-en-Chatellerault

Sales and Manufacturing Location
Zone Industrielle
86530 Availles-en-Châtellerault

Tel: +33 5 4902 1600

Fax: +33 5 4902 1616


Middle East

Aqseptence Group FZCO, Dubai

Sales Location
East Side 5EA, 7th floor, 722
P.O. Box 371082
Dubai Airport Free Zone
United Arab Emirates

Tel: +971 42278456


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