The steel-plastic composite pipe is made of hot-dip galvanized steel pipe as the base, and plastic is applied on the inner wall (or outer wall if necessary) by powder melt spraying technology, with excellent performance. Compared with galvanized pipes, it has the advantages of corrosion resistance, no rust, no fouling, smooth flow, clean and non-toxic, and long service life. According to tests, the service life of the steel-plastic composite pipe is more than three times that of the galvanized pipe. Compared with plastic pipes, it has the advantages of high mechanical strength, good pressure resistance and heat resistance. Since the base is steel pipe, there is no embrittlement or aging problem. It can be widely used in fluid transportation and heating projects such as tap water, gas, and chemical products, and is an upgraded product of galvanized pipes. Because its installation and use methods are basically the same as traditional galvanized pipes, the pipe fittings are exactly the same, and it can replace aluminum-plastic composite pipes in large-diameter tap water transportation, it is very popular with users and has become one of the most competitive new products in the pipeline market.
Coated steel pipes are made by coating plastic on large-diameter spiral welded pipes and high-frequency welded pipes. The maximum pipe diameter is 1200mm. According to different needs, they can be coated with plastic coatings of various properties such as polyvinyl chloride (PVC), polyethylene (PE), epoxy resin (EPOZY), etc. They have good adhesion and strong corrosion resistance. They are resistant to strong acid, strong alkali and other chemical corrosion. They are non-toxic, rust-proof, wear-resistant, impact-resistant and permeable. The pipe surface is smooth and does not adhere to any substance. It can reduce the resistance during transportation, improve the flow rate and transportation efficiency, and reduce the pressure loss during transportation. There is no solvent in the coating, and no exudable substances, so it will not pollute the medium being transported, thereby ensuring the purity and hygiene of the fluid. It can be used alternately in hot and cold cycles in the range of -40 ℃ to +80 ℃, and it will not age or crack, so it can be used in harsh environments such as cold areas.
rubber lined pipe
