BER Series – Submersible Self-Aspirating Jet Aerators
Mixing and jet aeration for wastewater treatment systems
The BER-series is a submersible self-aspirating jet aerators combined a submersible pump with a venturi-jet based diffuser. The liquid flow generated by the submerged pump causes negative pressure to form around the nozzle, whereby drawing in air from above the water’s surface. With this jet injector mechanism, the aspirated air mixes with water and is ejected through the diffuser, simultaneously agitating and aerating the ponded water. The mixed air-water is ejected powerfully in one direction, which effectively agitates the water across a wide area.
| Air-inlet Bore(mm) | 25 – 50 |
|---|---|
| Motor Output(kW) | 0.75 – 5.5 |
Features
- Submersible pump and venturi-jet based diffuser. Aerates and agitates wastewater without requiring a blower (capable of anaerobic agitation)
- Ejects a mixed flow of air and water in one direction
- Air release valve to prevent air lock
- Tsurumi’s exclusive oil lifter device, and dual silicon carbide mechanical seals
- Anti-wicking cable entry system prevents water ingress, protecting internal components
Typical Applications
- Mixing/holding tanks
- Equalization tanks
- Agitate wastewater
- Water treatment
Note:
1. Not all the pumps listed in the catalogue are available for Australia. Models for Australia are listed below under ‘Models’
2. Product guides / catalogues may vary for Australia. Contact us for the latest technical data
| Model | Air-inlet Bore (mm) | Motor Output (kW) | Phase | Starting Method | Solids Passage (mm) | Max. Water Depth*1 (m) |
|---|---|---|---|---|---|---|
| 8-BER | 25 | 0.75 | Three | D.O.L. | 20 | 4 / 3.5 |
| 15-BER | 32 | 1.5 | Three | D.O.L. | 20 | 4 |
| 22-BER | 50 | 2.2 | Three | D.O.L. | 35 | 4.5 |
| 37-BER | 50 | 3.7 | Three | D.O.L. | 35 | 5 |
| 55-BER | 50 | 5.5 | Three | D.O.L. | 35 | 6 |
*1 Max. water depth is the load limit of the motor. The load placed on the motor increase the deeper the submersible aerator is installed, therefore if the aerator is operated below the max. water depth, the overload will trip the motor protection device and stop the aerator from running continuously.
･Guide Rail Fitting model available.
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%.
Why Choose Tsurumi
Tsurumi pumps are known worldwide for their reliability, ease of maintenance and long service life. With more than a century of engineering experience, Tsurumi is trusted by contractors, councils and operators across Australia. Customers also benefit from national spare-parts support and fast delivery.
Proven Tsurumi Reliability
Tsurumi aerators are used on job sites across Australia and around the world. Built for demanding aeration applications, the BER series is proven to deliver reliable performance, durability, and long service life in tough site conditions.
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