The water to be cooled is sprayed and distributed over the splash fills. As a result the water temperature drops when the evaporation heat is withdrawn and the air gets humified.

The required air stream for the cooling is produced by ventilators which are mounted on an output shaft of the gear unit. To enable the Flender gear units for cooling towers to absorb the enormous ventilation forces the gear units are equipped with an additional axial bearing. Therefore, only application-adapted 2-staged bevel helical gear units are used to fulfill the special requirements of this application.

The motor is installed outside the cooling tower. He is mechanically connected to the gear unit that is placed right in the middle of the diffuser of the cooling tower via long Composite Couplings. These special couplings are also found in the FLENDER product range.