TRN


Submersible Self-Aspiration Aerators

Air-inlet Bore(mm) 32 - 150
Motor Output(kW) 0.75 - 40

The TRN-series is a submersible self-aspiration aerator designed for aeration and mixing of wastewater. A special semi-open impeller generates negative pressure around the impeller and draws in air from above the water surface. The drawn air is mixed with water in the aerator, and the mixture is then discharged. Since the mixture of air and water is performed under a pressurized state, it contributes to highly efficient dissolution of oxygen.

Application to Deeper Installation
Each aerator has a limit in its installation depth, but Tsurumi provides an optional device by which the aerator can be installed in deeper places. It is a simple stand or a stand with draft tube. Details are available on request.

Air Flow Rate - Water Depth Curves

(The air flow rates are expressed at the standard condition, i.e. temperature of 20℃, 1 atm and may vary by up to approximately 5%)

Model Selection
Air-inlet
Bore
(mm)
ModelMotor
Output
(kW)
PhaseStarting
Method
Solids
Passage
(mm)
Max.
Water Depth
(m)
32 32TRN2.75 0.75 Three D.O.L. 10 3.5
32 32TRN21.5 1.5 Three D.O.L. 12 3.5
50 50TRN42.2 2.2 Three D.O.L. 12 3.6
50 50TRN43.7 3.7 Three D.O.L. 12 4
50 50TRN45.5 5.5 Three D.O.L. 15 4
80 80TRN47.5 7.5 Three D.O.L. 15 4.5
80 80TRN412 12 Three Star-Delta 15 6
80 80TRN417 17 Three Star-Delta 15 6
100 100TRN424 24 Three Star-Delta 22 6
150 150TRN440 40 Three Star-Delta 25 6