| Pipe Bore | A | øB | C |
| ø25 | 161 | 124 | 224 |
| ø32 | 170 | 128 | 239 |
| ø50 | 133 | 165 | 239 |
Submersible Ejector Pump TSURUMI BER Series
Submersible Ejector Pump TSURUMI BER Series Submersible aspirating aerators range in size 1 HP to 7.5 HP. 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.
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Submersible Ejector Pump TSURUMI BER Series
TSURUMI BER Series 8-BER4, 15-BER3, 22-BER5, 37-BER5, 55-BER5, TOS-8BER4, TOS-15BER3, TOS-15BER3, TOS-22BER5, TOS-37BER5, TOS-55BER5
Submersible Self-Aspiration Jet Aerators
The Tsurumi BER-series is a submersible self-aspiration ejector designed for aeration and mixing of wastewater. It is composed of a combination of submersible pump and venturi-jet based diffuser. The BER-series draws in air and ejects the mixture of air and water through the diffuser. The ejection produces a single but strong mixing current in the water. It is suitable for pre-aeration in sewage and wastewater treatment, mixing to prevent sludge settlement, supplying oxygen in aquaculture, etc.
Tsurumi BER Series Model 8-BER4, 15-BER3, 22-BER5, 37-BER5, 55-BER5, TOS-8BER4, TOS-15BER3, TOS-15BER3, TOS-22BER5, TOS-37BER5, TOS-55BER5
TSURUMI BER Series Specifications
TSURUMI BER Series 8-BER4, 15-BER3, 22-BER5, 37-BER5, 55-BER5, TOS-8BER4, TOS-15BER3, TOS-15BER3, TOS-22BER5, TOS-37BER5, TOS-55BER5
| Motor Output | 200-240V | 380-525V | Material | Length | ||
| kW | Cores x mm2 | Dia. mm | Cores x mm2 | Dia. mm | m | |
| 0.75 | 4×1.25 | 11.1 | 4×1.25 | 11.1 | P.V.C Sheath | 6 |
| 1.5 | 4×1.25 | 11.1 | 4×1.25 | 11.1 | ||
| 2.2 | 4×2 | 11.8 | 4×2 | 11.8 | ||
| 3.7 | 4×3.5 | 13.9 | 4×2 | 11.8 | ||
| 5.5 | 4×3.5 | 14.1 | 4×3.5 | 14.1 | Chloroprene Sheath | 8 |
Specification Table A1
| Model | Motor Ouput | Speeds | Standing Method | Air Ouantiry Wator Depth | Oxygen-transfer Rate | Mixing Capacity | |
| Free Standing | GuideRail Fitting | kW | min-1 | m3/h-m | kg.O2/h | m3/h | |
| 8-BER4 | TOS-8BER4 | 0.75 | 3000 | D.O.L. | 11-3 | 0.45-0.55 | 22 |
| 8-BER4 | TOS-8BER4 | 0.75 | 3600 | D.O.L. | 9-3 | 0.35-0.45 | 21 |
| 15-BER3 | TOS-15BER3 | 1.5 | 3000 | D.O.L. | 28-3 | 1.3-1.5 | 41 |
| 15-BER3 | TOS-15BER3 | 1.5 | 3600 | D.O.L. | 24-3 | 1.1-1.3 | 40 |
| 22-BER5 | TOS-22BER5 | 2.2 | 1500 | D.O.L. | 45-3 | 2.2-2.6 | 63 |
| 37-BER5 | TOS-37BER5 | 3.7 | 1500 | D.O.L. | 80-3 | 3.6-4.3 | 94 |
| 55-BER5 | TOS-55BER5 | 5.5 | 1500 | D.O.L. | 120-3 | 6.0-7.0 | 126 |
| 22-BER5 | TOS-22BER5 | 2.2 | 1800 | D.O.L. | 38-3 | 1.9-2.2 | 60 |
| 37-BER5 | TOS-37BER5 | 3.7 | 1800 | D.O.L. | 70-3 | 3.2-3.7 | 90 |
| 55-BER5 | TOS-55BER5 | 5.5 | 1800 | D.O.L. | 105-3 | 5.3-6.1 | 120 |
Specification Table A2
| Air-Inlet Bore | Frequency | Model | Max. Tank Dimension | Max Water Depth | Dry Weigth | ||||
| L | W | D | Free Standing | Guide Rail Fitting | |||||
| mm | Hz | Free Standing | GuideRailFitting | m | m | m | m | kg | kg |
| 25 | 50 | 8-BER4 | TOS-8BER4 | 3 | 2 | 4 | 4 | 28 | 23 |
| 60 | 8-BER4 | TOS-8BER4 | 3 | 2 | 4 | 4 | 28 | 23 | |
| 32 | 50 | 15-BER3 | TOS-15BER3 | 4 | 3.5 | 4 | 4 | 43 | 34 |
| 60 | 15-BER3 | TOS-15BER3 | 4 | 3.5 | 4 | 4 | 43 | 34 | |
| 50 | 50 | 22-BER5 | TOS-22BER5 | 5 | 5 | 4.5 | 4.5 | 75 | 61 |
| 37-BER5 | TOS-37BER5 | 6 | 6 | 5 | 5 | 91 | 77 | ||
| 55-BER5 | TOS-55BER5 | 7 | 7 | 6 | 6 | 149 | 132 | ||
| 6160 | 22-BER5 | TOS-22BER5 | 5 | 5 | 4.5 | 4.5 | 75 | 61 | |
| 37-BER5 | TOS-37BER5 | 6 | 6 | 5 | 5 | 91 | 77 | ||
| 55-BER5 | TOS-55BER5 | 7 | 7 | 6 | 6 | 149 | 132 | ||
TSURUMI BER Series Dimensions
TSURUMI BER Series 8-BER4, 15-BER3, 22-BER5, 37-BER5, 55-BER5, TOS-8BER4, TOS-15BER3, TOS-15BER3, TOS-22BER5, TOS-37BER5, TOS-55BER5
| Free Standing | 8-BER4 | 15-BER3 | 37-BER5 | 22-BER5 | 55-BER5 |
| Guide Rail Fitting | TOS-8BER4 | TOS-15BER3 | TOS-37BER5 | TOS-22BER5 | TOS-55BER5 |
| A | 194 | 222 | 325 | 317 | 391 |
| B | 674 | 895 | 1164 | 1158 | 1415 |
| C | 464 | 562 | 753 | 679 | 942 |
| øD* | 25 | 32 | 50 | 50 | 50 |
| E | 674 | 910 | 1168 | 1162 | 1422 |
| F | 350 | 450 | 450 | 450 | 500 |
| G | 550 | 650 | 700 | 700 | 750 |
| H | 514 | 603 | 837 | 768 | 1006 |
*Nominal Size
