DZ fan with wide blades, big chord, space warp oblique axial impeller, fan motor, direct-drive. Obviously low noise, large air volume, low power consumption, light weight advantages. Widely used in factories, warehouses, office buildings, residential and other places of the wall exhaust pipe blast. Fans of the series points: DZ-I-type wall (which can add set nets, rain or dust from elbow vertical blinds); DZ-II type pipeline, with foot. Fans of the series are generally equipped with three-phase motors, according to user requirements can be equipped with the following 0.55KW single-phase motor. According to the requirements of the transmission medium can be made of corrosion, explosion-proof; FDZ as anti-corrosion axial fan, used to transport corrosive gas; BDZ be explosion-proof axial fans, for transporting flammable and explosive gases. FBDZ is corrosion proof type axial fans, for the transport of corrosive and flammable gases.