9-19,9-26 high tension centrifugal ventilating fan are used for smelting furnace and high pressure forced ventilation, and widely used to convey materials, the transmission pattern of the fan is divided into two types: Type A and Type D, it has the advantages of high efficiency, low noise and wide function area. Total Pressure: 2705~16250Pa Volume of Flow: 824~12309 cubic meter per hour Machine No.: 4A~16D, thirteen specifications totally