Due to its non-toxic, non-rusting, odorless properties, and its ability to prevent secondary water pollution, without the need for corrosion prevention, and its extended service life, as well as easy installation, the internal and external hot-dipped galvanized steel pipes have been widely used in municipal and urban distribution networks. Consequently, they have been warmly welcomed in the water supply and drainage industry. In terms of service life, rigidity, impact resistance, corrosion resistance, and anti-rust scaling, the internal and external hot-dipped galvanized steel pipes significantly outperform other pipes such as lined plastic, lined rubber, and hot-dipped galvanized pipes.

Hot-Dip Galvanized Steel Pipe retains the advantages of steel pipes, boasting high mechanical strength and excellent resistance to external impacts such as shocks and bends. It exhibits strong resistance to chemical corrosion, making it suitable for transporting fluids containing sulfur, calcium, and magnesium in underground coal mines, as well as other corrosive media. The pipeline comes with flanged coatings, tees, elbows, and other fittings, all of which undergo internal and external plastic coating and corrosion protection treatments to ensure the overall corrosion resistance of the pipeline, significantly extending its service life compared to ordinary steel pipes. The inner and outer hot-dip galvanized steel pipes use a physical special treatment process for the base material, achieving a pre-treatment standard of Sa 2.5. Scientifically rational processes and advanced equipment guarantee the quality of the coating, with adhesion levels significantly higher than the standard. The inner and outer pipe surfaces have a dense coating, which does not scale, and their friction coefficient and roughness number are both lower than those of ordinary steel pipes, making them an economically and environmentally friendly product with a high cost-performance ratio. The specially formulated thermoplastic polyethylene powder coating features uniformly distributed antistatic and flame-retardant components on the surface and inner layer of the pipes, complying with MT181 requirements and suitable for specific flammable and explosive locations in underground mines. The inner and outer hot-dip galvanized steel pipes can be connected using quick couplings and flanges, ensuring easy installation and reliable performance.