Energy efficient axial axial fans OSA 300 and 301

A axial fan OSA 300 and 301 is produced in general industrial, explosion-proof, corrosion-resistant, explosion-proof corrosion-resistant version. It is used in ventilation and air heating systems, in smoke suppression ventilation systems, as well as in sanitary and technological installations. Low and medium pressure axial fans of OSA 300 and 301 series consist of an impeller of a new construction, an all-welded rolled casing and an asynchronous motor placed in the casing. The motor support column is aerodynamically shaped and fulfils the function of a straightening apparatus. The impeller is made with swivelling blades, the angle of the blades is adjustable to obtain maximum efficiency. The blades are volumetric, injection moulded. The live cross-section of the air flow is maximised, which results in a significant reduction of the outlet velocity. Thanks to the new wheel design, the fans are designed with the highest static efficiency at c...