What type of industrial fans choose?
An axial fan is recommended for high flow comparing the pressure loss.
In opposite, we will use centrifugal fan when the pressure loss is quite important in regard to flow.
Different transmissions modes of the power electrical motor to the fan exist.
- Impeller directly mounted on the motor shaft (arrangement 4)
- Impeller mounted on a shaft and house bearings, the transmission is done by belt between the motor and the fan (arrangement 9 and 12)
- Impeller mounted on a shaft and bearings, the transmission is done via a semi-elastic coupling between the motor and fan shaft (arrangement 8)
In the case of a centrifugal fan, it is also possible to choose the orientation of the outlet duct according the position of the pipe. These orientations are standardized according the rotational direction (LG or RD) and the radius between the outlet axis in regards to the vertical (0°, 45°, 90°…)