9-26 Centrifugal fan (Type A) is used for high-pressure forced ventilation in forging furnaces, glass, electroplating, ceramics, batteries, radio and other industries, and can be widely used for material transportation in food, feed, mineral powder and other processing industries. It is used for carton machinery equipment, tempered glass equipment, etc. The conveying medium is air and other gases that are not spontaneously combustible, harmless to the human body, and non-corrosive. There must be no viscous substances in the gas. The general use temperature during ventilation should not exceed 80 ℃, and the dust and hard particles contained ≤ 150mg/m3.