YW-AB series boiler centrifugal induced draft fans are designed for 1-20 t/h industrial boilers that burn various coal qualities and are equipped with smoke and dust removal devices. The maximum temperature shall not exceed 250 ℃, and a dust removal device with a dust removal efficiency of not less than 85% must be added prior the fan to reduce the dust content of the air stream entering the fan and to improve the service lifespan of the fan. This series of fans adopts two transmission modes, direct coupling transmission and V-belt transmission. This type of fan is single air-flow, where the fan can be engineered into two types: left-rotating and right-rotating.