High-temperature centrifugal fan is a professional equipment used to transport high-temperature gas. It is suitable for transporting weakly corrosive and unnatural gases at 250℃-950℃. The dust content and hard particle concentration of the gas should not exceed 150mg/m3. It is generally used to discharge gas from various heating furnaces. The fan is of single suction type and can be made in two forms: forward rotation or counter rotation. Looking directly at the fan from the transmission group end, if the impeller rotates clockwise, it is called a clockwise fan, expressed as "cis"; if the impeller rotates counterclockwise, it is called a counter-cyclone fan, expressed as "counter".