... finished GY6-51 Boiler Induced Draught Fan Wide operation areaGY4-73 Boiler Induced Draught Fan is applicable to the draught system ... general ventilation.Flow:15299—680000 cubic meters per hour Total Pressure:553~7218Pa Machine No.:8D-29.5D(13 kinds ... coal conveyor, slag removal machine, water treatment equipment, exhauster, draught fan ,air blower,feed water pump, valve instrument, crusher, chimney, ...