Counter-rotating
When high pressure is required, Airfoil International offers a two counter-rotating impellers fan, built with one or more stages for the highest performance.
When high pressure is required, Airfoil International offers a two counter-rotating impellers fan, built with one or more stages for the highest performance. Manufacturing features are the same for Direct Drive fans, with particular attention to overall toughness.
During the design phase, great care is posed to noise output, calculated both as db (A) and as sound pressure; depending on customer’s need, studies will be made to keep this important variable under control and setting up silencers and proper caulkings.