The medium discharged by this type of ventilator is air and non-corrosive, unnatural, and non-viscous gas whose temperature does not exceed 80°C. It has the characteristics of higher pressure and lower flow rate, and is suitable for wind conveying during processing of grain and cotton. After changing the impeller material, it can also be used as an induced draft fan for boilers below 4 tons/hour.
The fan is made of single suction, and the machine numbers are №5, 6, 7, and 9. The fan can be made into two types of right rotation or left rotation. The fan is viewed from the driving part. For example, the impeller rotating in the clockwise direction is called right rotation, and the counterclockwise rotation is called left rotation.

6-30 type centrifugal fan each machine number