T30 series of axial fan is a new product developed on the foundation of T30K-4 type. This series is divided into two kinds: the ordinary type, and the open-and-shut type. Its structure is rational, and the intensity of the wind blade is high, so the noise is low and the efficiency is high. It is mainly used for extraction of high temperature gas or discharge of other gases containing oil, water or dust. It can also be applied to the pipeline pressurization and air supply or discharge in generic industries. It can also be selected as general-use anti-blast ventilation and air exchange equipment in the ircumstances in which there are non-corrosive flammable or explosive gases. The transmitted gases should be free of corrosion and visible dusts, and the nvironmental temperature is ≤60℃.