Low and medium pressure axial fans of OSA® 300 series consist of an impeller of new design, all-welded rolled-out casing of asynchronous motor placed in the casing.
The impeller is designed with swivelling vanes, the angle of the vanes is adjustable to maximise efficiency. The blades are volumetric, injection moulded.
The air flow cross-section is maximally increased, which results in a significant reduction of velocity at the outlet.Thanks to the new wheel design, the fans are designed with the highest static efficiency at static pressure values of 100 - 900Pa.
The fans have two types of casing design: long (01) and short (02).The short fan casing does not cover the motor completely and has a reduced weight.
Fans can (a number of models) be installed in premises with permanent stay of people.They are designed for operation in conditions of moderate (U) and moderately cold (UHL) climate of the 1st category of placement according to GOST 15150-69.
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