Submersible aspirating aerators range in size in 1-7.5HP, and single phase/three phase available. The BER is designed for both very high oxygen transfer and excellent mixing. The BER best application is used in Sequence Batch Reactors were high oxygen transfer is required during the aeration cycle and when the air is shut off, mixing only during the anoxic cycle.
Tsurumi TRN / BER Series Catalog, Page 1-7 (PDF)
Tsurumi TRN / BER Series Catalog, Page 8-16 (PDF)