"F4-72 series centrifugal fan can transport air and other non-spontaneous combustion, harmless, non-corrosive gases for steel. Adhesive materials are allowed, which contain the dust and hard particles should not exceed 150mg / m3 within the air. Air temperature must not exceed 80 ℃. The fan has a good aerodynamic performance, smooth running, small vibration, high efficiency, long life and other characteristics. Widely used in industrial powder spray booth ventilation. F4-72 series of anti-corrosion centrifugal fan, mainly made ​​of stainless steel (or fiberglass) Impeller material made of, housing, air inlet and other components and electrical components, can be used to transport corrosive air, performance and installation size are the same 4-72 series.http://www.colopowdercoatingline.com/"