Primary Air (PA) Fans that we bring for are utilized for drawing air from the cold air duct at the outlet of the FD fan, and provide energy for making the air pass by means of the pre-heater, etc. Also, they transport the pulverized coal to the furnace with the help of the burner for combustion, which is utilized extensively in thermal power coal-fired units, circulating fluidized bed units, fuel oil units, and much more. Highly efficiency, durable, and low maintenance, Primary Air (PA) Fans can be bought at competitive prices.