Y5-48 series boiler centrifugal induced draught fan has been specially designed to form a complete set for the industrial boiler(1-20 tons/hour) with fume-extraction & dust-collection device. It is fit for various coal combustion. It can be chosen for considerable air inlet conditions which adapt to the performance as well. But the max, temperature should not exceed 250.The fan media is gas-smoke. Y5-484C-6C gas temperature is 200;gas density is 0.745kg/m3. 8C~12.5C gas temperature is 140.gas density 0.851kg/m3. A dust -collection device should be equipped in front of the induced draught fan in order to guarantee that it is less than 400kg/m3 for the gas-smoke dust content which enter into the fan.