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DWT series roof ventilator is divided into two major types.
One type, the axial roof fan, Type DWT-I, applies to medium and low pressure and large flow capacity situations.
The other, the centrifugal roof fan: type DWT-II, DWT-II applies to the sites of smaller air volume but with higher pressure requirements.
DWT-I type axial roof fan performance parameters (fixed angle)
Impeller Diameter(mm) | Air flow volume(m3/h) | Wind pressure(Pa) | Rotating Speed (r/min) | Power(kw) | Noise dB(A) |
300 | 3300 3000 2600 | 181 206 232 | 2850 | 0.37 | 66 |
1650 1560 1450 | 62 66 72 | 1450 | 0.06 | 52 | |
400 | 7430 6350 5300 | 193 230 250 | 2850 | 0.75 | 69 |
5700 5400 4580 | 176 184 190 | 1450 | 0.55 | 67 | |
500 | 8000 7000 5600 | 135 162 191 | 1450 | 0.55 | 68 |
7000 6700 6400 | 113 122 131 | 960 | 0.37 | 63 | |
6000 5000 4100 | 88 92 96 | 720 | 0.25 | 58 | |
600 | 15000 14000 13000 | 232 251 267 | 1450 | 1.5 | 73 |
11000 10000 9100 | 168 183 193 | 960 | 1.1 | 67 | |
8500 8000 7600 | 111 127 136 | 720 | 0.55 | 62 | |
700 | 17500 15000 12500 | 165 201 212 | 960 | 1.5 | 69 |
12000 11000 9200 | 141 163 177 | 720 | 0.75 | 63 | |
9300 8500 7200 | 83 94 102 | 560 | 0.55 | 59 |
DWT Centrifugal roof ventilation fan