The steel-plastic composite pipe is made of hot-dip galvanized steel pipe as the base body, and is coated with powder by the powder melting and spraying technology on the inner wall (when the outer wall is needed). Compared with galvanized pipe, it has the advantages of corrosion resistance, no rust, no fouling, smooth and smooth, clean and non-toxic, and long service life. According to testing, the service life of steel-plastic composite pipe is more than three times that of galvanized pipe. Compared with plastic pipe, it has the advantages of high mechanical strength, pressure resistance, heat resistance and so on. Since the substrate is a steel pipe, there is no problem of embrittlement and aging. Can be widely used in tap water, gas, chemical products and other fluid transportation and heating engineering, is the upgrading of galvanized pipe products. As its installation and use methods are basically the same as those of traditional galvanized pipes, the form of pipe fittings is also the same, and it can replace aluminum-plastic composite pipe to play a role in the transportation of large-diameter tap water. It is welcomed by users and has become the most competitive pipeline market. One of the new products.
Coated steel pipe is made of plastic coated with large-diameter spiral welded pipe and high-frequency welded pipe. The maximum nozzle diameter is 1200mm. It can be coated with PVC, PE, epoxy according to different needs. Resin (EPOZY) and other various properties of plastic coating, good adhesion, strong corrosion resistance, resistant to strong acids, alkalis and other chemical corrosion, non-toxic, no rust, wear resistance, impact resistance, strong permeability The surface of the pipeline is smooth and does not adhere to any substance, which can reduce the resistance during transportation, increase the flow rate and transmission efficiency, and reduce the loss of transmission pressure. There is no solvent in the coating, no leakage of substances, so it will not contaminate the transported media, so as to ensure the purity and sanitation of the fluid. It can be used alternately in the range of -40°C to +80°C, without aging, Because it does not crack, it can be used in harsh environments such as cold areas.
Large diameter coated steel pipes are widely used in tap water, natural gas, petroleum, chemical, pharmaceutical, telecommunications, electric power, marine and other engineering fields.