Due to its non-toxic, non-rusting, odorless nature, and its ability to prevent secondary water pollution, not requiring防腐 measures, and significantly extending service life, as well as easy installation, the internal and external hot-dipped galvanized steel pipes have been widely applied in municipal and urban distribution networks. Consequently, they have gained popularity in the water supply and drainage industry. The internal and external hot-dipped galvanized steel pipes outperform other pipes such as plastic-lined, rubber-lined, and hot-dipped galvanized pipes in terms of service life, rigidity, impact resistance, corrosion resistance, and anti-rust scaling properties.

Hot-Dip Galvanized Steel Pipe retains the advantages of steel pipes, with high mechanical strength and excellent resistance to external influences like impact and bending. It boasts strong chemical corrosion resistance, making it suitable for transporting fluids containing sulfur, calcium, and magnesium in coal mine shafts, as well as other corrosive mediums. The pipe is available with flanges, tees, elbows, and other fittings, all of which undergo internal and external plastic coating for corrosion protection, ensuring the overall pipeline's corrosion resistance. Its service life can be several times longer than that of ordinary steel pipes. The inner and outer surfaces of the hot-dip galvanized steel pipe are treated with a special physical process, achieving a pre-treatment standard of Sa 2.5. The scientific and reasonable process, along with advanced equipment, guarantees the coating quality, with adhesion significantly higher than the standard. The inner and outer pipe surfaces have a dense coating, are non-scaling, and have lower friction coefficients and roughness numbers than ordinary steel pipes, making it an economical and environmentally friendly product with high cost-performance. The specially formulated thermoplastic polyethylene powder coating has antistatic and flame-retardant components evenly distributed on the surface and inner layer of the pipe, meeting the requirements of MT181 and suitable for specific flammable and explosive areas in coal mines. The inner and outer hot-dip galvanized steel pipes can be connected using quick connectors, flanges, and other methods, offering simple installation and reliable performance.