The FGXF fiberglass/polypropylene diagonal flow fan features a drum-type structure, small inlet and outlet, high air velocity, and a high pressure coefficient. Compared to similar axial flow fans, it offers higher flow and pressure. This series of fans replaces low-pressure fans, saving investment and floor space, simplifying design, and ensuring safe installation. In duct ventilation, when axial flow fans cannot meet pressure requirements, diagonal flow duct fans are the optimal choice. They offer lightweight, excellent corrosion resistance, low aging performance, and low noise levels. They are widely used in industrial and mining enterprises, hotels, museums, gymnasiums, chemical plants, laboratories, and environmental protection facilities. The conveyed gas must not contain sticky substances, and dust and hard particle content must be less than 150 mg/m³. The gas temperature must be less than 60°C, and the relative humidity must be less than 100°C.