Y8-39,Y9-38 boiler induced draft fan is suitable for the smoke and dust removing device which is equipped with the economizer (preheater) and the blower system with the volume of 2 to 35 tons per hour. The transported medium of the induced draft fan is the gas-smoke. The highest temperature of it must not exceed 250 degrees centigrade. And the dust control efficiency normally can not be lower than 85%. Type: 4D~16D (13kinds in all) Volume of Flow: 3242~539712 cubic meters per hour Total Pressure: 1167~5805Pa