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Cooling tower fan stack is an essential part of the cooling tower as well as a part of the propeller fan, mitigating pressure loss produced by high input air speed.

The fan stack is an essential part of the cooling tower as well as a part of the propeller fan, mitigating pressure loss produced by high input air speed. Fan stacks for cooling towers are made from layered laminated polyester, and they have a double-coat design. Their inner smooth surface allows for the fast removal of air. The outer surface provides high strength and resistance against climatic conditions and the operation of cooling towers. The shape of the classical cylindrical fan stack contributes to lower noise and vibration not only of the fan itself, but the whole cooling tower.