* XHF two-speed mixed flow fan, meridian acceleration method design. Its structure Is characterized by low into the outlet pressure coeffi-dent Is higher than that of axial flow fan, the flow coefficient Is higher than the centrifugal fan, high efficient area Is broad, high efficiency, low noise, corrosion resistant, compact structure, used for all kinds of pipe pressure and exhaust ventilation and air conditioning system.

* Its basic principle is: under the condition of casing for the cylindrical, rely on reducing wheel relative diameter of the realization of meridional plane air inlets, acceleration, avoid air separation, to obtain high efficiency and low noise.

* Is widely applied in family, apartments, villas, offices, conference rooms, shopping malls, hotels, restaurants, movie theaters, dance halls, station and other places.