Axial fans are suitable for large quantities of air at low pressures while producing very little noise. Axial fans have the following advantages when compared with Centrifugal Fans
Direct driven or multi-stage fans suitable for vertical or horizontal mounting.By running two long cased fans in series with contra-rotating impellers it is possible to achieve up to three times the pressure of a single stage fan of equal diameter and speed. In this instance the casing covers the entire length of the motor and impeller and an inspection door is provided. Essentially for duct mounting where flanges are bolted back and front. The casing covers the impeller track and a portion of the motor projects beyond the end of the flange. Best installed at the end of a duct or on air conditioning equipment.