1, the centrifugal roof ventilator changes the flow direction of the medium in the air duct, while the axial roof ventilator does not change the flow direction of the medium in the air duct;

2. The installation of the former is complicated;

3. The former motor is generally connected with the fan through a shaft, and the latter motor is generally in the fan;

4. The former is often installed in the import and export of air conditioning units, boiler drums, induced draft fans, etc. The latter is usually installed in the air duct or at the front end of the air duct outlet.

Centrifugal roof ventilator is a driven fluid machine, which relies on mechanical energy input to improve gas pressure and exhaust gas. Centrifugal fans are widely used for ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings. Ventilation and ventilation of boilers and industrial furnaces; Cooling and ventilation of air conditioning equipment and household appliances; Drying and selection of grain; Wind source in wind tunnel and inflation and propulsion of hovercraft.

Axial-flow roof ventilators are airflow in the same direction as the axis of blades, such as electric fans, and outdoor fans of air conditioners are axial-flow fans. Because the gas flows parallel to the fan shaft, it is called "axial flow". Axial-flow fans are usually used in situations with high flow requirements and low pressure requirements. Axial fans locate and move air.

The centrifugal fan mainly changes the flow direction of the medium in the air duct, while the axial fan cannot change the flow direction of the medium, which is also the most important difference between the two. Moreover, the air volume and air pressure of centrifugal fans are very large, while the air pressure and air volume of axial fans are much smaller.

Compared with those who have had installation experience, they have all appeared. The installation of centrifugal fan is very complicated, while the installation of axial fan is very simple and the installation period is very short. There are some differences between centrifugal fans and axial fans. Users can look at this for themselves. The motor of the centrifugal fan is connected with the fan through a shaft, and the fan of the axial fan is directly installed inside the fan.