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The open impeller of the TR model draws a, for the motor size, large mass of
water through the aeratorīs large-diameter strainer. It spreads all this water
horizontally in all directions. The top side of the impeller is hollow and allows air,
drawn through a suction hose, to fill the space around the shaft seal and mix itself with
the water around the impeller. This results in a large displacement of water filled with
tiny air bubbles. In other words, perfect aeration. The TRN
model has a semi-vortex design, not needed in the largest
sizes,
to avoid chips and fibres cloggin the impeller. Only
cast iron is in contact with the water. Shaft, screws, impeller and
wear plate are of stainless steel. The heart of the aerator is the double mechanical
seal with SiC/SiC rings, cooled by an oil bath of at least 0,5 litre per kW.
Standard Accessories:
|
model |
motor |
phase |
r.p.m |
starting |
air inlet |
oxygen
dissolution in clear water at 20°C: |
max. |
no. of |
dry |
cable |
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1,5m |
2m | 3m | 3,5m | 4m | 4,5m | 5m | max. | ||||||||||
| 8-TRN2 | 0,75 |
3-ph. |
3000 |
d.o.l. |
32 |
0,18 |
0,215 |
0,25 |
-- |
-- |
-- |
-- |
0,23 |
3,2 |
6 |
60 |
10 |
| 15-TRN2 | 1,5 |
3-ph. |
3000 |
d.o.l. |
32 |
0,58 |
0,68 |
0,86 |
-- |
-- |
-- |
-- |
0,85 |
3,2 |
6 |
70 |
10 |
| 22-TRN2 | 2,2 |
3-ph. |
1500 |
d.o.l. |
50 |
1,36 |
1,57 |
1,82 |
1,58 |
-- |
-- |
-- |
1,50 |
3,6 |
8 |
170 |
10 |
| 37-TRN2 | 3,7 |
3-ph. |
1500 |
d.o.l. |
50 |
2,50 |
2,90 |
3,50 |
3,20 |
-- |
-- |
-- |
3,05 |
3,6 |
8 |
180 |
10 |
| 55-TRN2 | 5,5 |
3-ph. |
1500 |
d.o.l./s-d |
50 |
4,20 |
4,95 |
5,50 |
4,80 |
-- |
-- |
-- |
4,60 |
3,6 |
8 |
220 |
10 |
| 75-TRN2 | 7,5 |
3-ph. |
1500 |
d.o.l./s-d |
80 |
-- |
7,65 |
8,20 |
7,70 |
7,00 |
-- |
-- |
6,85 |
4,1 |
8 |
240 |
10 |
| 110-TRN2 | 11 |
3-ph. |
1500 |
s-d |
80 |
-- |
11,10 |
12,50 |
13,00 |
13,40 |
13,40 |
-- |
13,3 |
4,7 |
8 |
280 |
10 |
| 150-TR2 | 15 |
3-ph. |
1500 |
s-d |
80 |
-- |
14,60 |
16,40 |
16,40 |
15,70 |
14,10 |
-- |
13,1 |
4,7 |
8 |
290 |
10 |
| 190-TR | 19 |
3-ph. |
1500 |
s-d |
100 |
-- |
17,00 |
18,30 |
20,00 |
20,00 |
19,80 |
18,70 |
18,7 |
5,0 |
8 |
520 |
8 |
| 220-TR | 22 |
3-ph. |
1500 |
s-d |
100 |
-- |
22,20 |
24,00 |
24,00 |
23,80 |
23,00 |
21,50 |
21,0 |
5,0 |
8 |
530 |
8 |
| 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. |
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Air Emission Volume-Water Depth Curve
(at 20°C, air emission value may vary ą5%)
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 8-TRN2, 15-TRN2, 22-TRN2 and 37-TRN2
Click here for dimensions of 55-TRN2, 75-TRN2 and 110-TRN2
Click here for dimensions of 150-TR2, 190-TR and 220-TR