OZA-GKK axial fan silencers are designed for direct connection to the fan inlet and outlet.

These silencers provide a high degree of sound and noise reduction in the ventilation duct. The modifi cation with an additional acoustic cassette improves the aerodynamic characteristics of the fan, ensuring the restoration of static pressure. 

The acoustic cassette has almost the same diameter as the fan hub and, thus, provides an air channel that reduces the pressure drop in the system. The design of the OZA-GKK silencer ensures reliable operation at high fan speeds.