BER



This submersible ejector is composed of a BE/B type pump and a venturi
with diffusor trumpet. The large flow from the pump, first, at high speed,
draws and mixes itself with air in the venturi, then in the diffusor changes into
a massive unidirectional horizontal stream of tiny bubbles with water or sludge.
The pump is of the non-clog single blade shaver type.


BER consists of:
  • BE/B-series pump
  • Ejector including
    Silencer & Valve Set and
    Lifting chain
TOS-BER consists of:
  • BE/B-series pump
  • TOS-Ejector including
    Silencer & Valve Set and
    Lifting Chain




model

motor
output
kW

phase

r.p.m

starting
method

air inlet
diameter
mm

oxygen dissolution in clear water at 20°C:
kg O2/h at impeller and discharge depth of:

tank
dimensions

dry weight
kg

impeller
passage
mm

cable
length
m

0,5m

2m 3m 4m 5m

6m

max.
length
m

max.
width
m

max.
depth
m

Free
stand.

TOS-
model

8-BER2
TOS-8BER2

0,75

3-ph.

3000

d.o.l.

25

0,30

0,40

0,50

0,44

--

--

3,0

2,0

4,0

28

23

20

10

15-BER2
TOS-15BER2

1,5

3-ph.

3000

d.o.l.

32

0,96

1,13

1,26

1,40

--

--

4,0

3,5

4,0

45

36

20

10

22-BER3
TOS-22BER3

2,2

3-ph.

1500

d.o.l.

50

1,38

2,00

2,30

2,65

--

--

5,0

5,0

4,5

75

61

35

10

37-BER3
TOS-37BER3

3,7

3-ph.

1500

d.o.l.

50

2,30

3,10

3,75

4,10

4,15

--

6,0

6,0

5,0

91

77

35

10

55-BER3
TOS-55BER3

5,5

3-ph.

1500

d.o.l.

50

3,15

5,00

6,00

6,90

7,50

7,20

7,0

7,0

6,0

137

120

35

10

Multiply kg O2 by 0,85 for average soiled water. Kg O2 are realistic but approximate. High curves reflect laboratory test results.
Figures shown are the LOW curves, attainable under favourable circumstances in ideal installations.








Air Emission Volume-Water Depth Curve
(at 20°C, air emission value may vary ±5%)




Oxygen Dissolution Volume-Water Depth Curve
(dissolution volume and fresh water at 20°C, for waste water multiply by 0,85)


Click here for dimensions of 8BER2 and 15-BER2


Click here for dimensions of 22-BER3, 37-BER3 and 55-BER3


Click here for dimensions of TOS-8BER2 and TOS-15BER2


Click here for dimensions of TOS-22BER3, TOS-37BER3 and TOS-55BER3