The FRINGS submersible aerator TAK is – like the type TA – a self-aspirating aeration system for biological wastewater treatment. In contrast to the TA, with the TAK the fine bubbled air escapes into the liquid to be aerated through extended channels that are slotted on the upper side.

This optimizes the efficiency of the aeration system.

The FRINGS submersible aerator TAK is mainly used in plants for biological wastewater treatment. The unit consists of an aerator – which was developed from our rotor/stator aerator called FRIBORATOR – and a directly connected submersible motor.

The submerged aerator is completely immersed and operated standing on the bottom of the tank or basin or hanging directly above it.

Mode of operation of the «TAK»:

The impeller rotates in the center of the guide ring and thus automatically draws in air through a pipe. At the same time water flows into the impeller, is intensively mixed with the air and the mixture is thrown radially outwards through the guide ring. Due to the rotation of the impeller and the static guide ring, the air is divided into very fine bubbles.

Thus, the large mass transfer surface gained and the strong turbulence of the generated flow allow high oxygen utilization.

The air-water mixture emerging from the guide ring is ejected at high speed just above the bottom of the tank or basin and allows direct intensive aeration of tanks or basins – depending on the type of aerator – up to 6 m in diameter (basin-∅ A).

This type of application guarantees maximum values for the oxygen input. For the treatment of normally polluted wastewater, the basin can be considerably larger, since there is a zone around the diameter range A which is aerated by the mammoth pump effect of the rising air bubbles (basin-∅ B).

In any case, the submerged aerator ensures a very good mixing of the entire basin and thus prevents deposits on the basin floor.

Technical data (standard version):

  • motor power 11 – 75 kW
  • Oxygen input capacities 25 – 130 kg/h (basin-∅ A)
  • Aerator parts made of stainless steel 1.4301 (304)
  • exposed areas hard chrome plated
  • Bronze bushing
  • Cast iron motors with high quality paint
  • Stainless steel shaft
  • Silicon carbide mechanical seal(s) (medium side)
  • electronic seal monitoring
  • Overheating protection

Special designs in higher quality material are possible.

PERSONA DE CONTACTO equipo de tecnología ambiental


Tel.: +49 (0)22 26 89 29 – 400



Boschstraße 32 53359 Rheinbach
Tel.: +49 (0)22 26 89 29 – 400 Fax: +49 (0)22 26 89 29 – 401