Take you to learn about 3PE anti-corrosion steel pipes.
Release time:
2022-03-17
The national standard thickness for 3PE-coated steel pipes is between 2.5 and 3.7 mm. For the same standard, 3PE-coated welded pipes generally have a wall thickness that is at least 0.5 mm greater than that of ordinary-grade pipes. This coating exhibits excellent temperature resistance and can be used reliably over a long period at temperatures ranging from -40°C to 300°C. It does not burn or soften, boasts high strength, and can withstand test pressures up to 5.5 MPa at room temperature. It offers low fluid resistance, prevents scaling in pipelines, and thereby enhances transportation efficiency. Additionally, it is highly resistant to corrosion by acids, alkalis, and salts, ensuring that the pipeline remains rust-free for up to 50 years.
3PE anti-corrosion steel pipe The national standard thickness for this grade is 2.5 to 3.7 mm; for the same standard, 3PE anti-corrosion welded pipes generally have a wall thickness that is at least 0.5 mm greater than that of ordinary grades. This coating boasts excellent temperature resistance and can be used reliably over a long period at temperatures ranging from -40°C to 300°C. It does not burn or soften, exhibits high strength, and can withstand test pressures up to 5.5 MPa at room temperature. It offers low fluid resistance, prevents scaling in pipelines, and thereby enhances transportation efficiency. The coating is highly resistant to corrosion by acids, alkalis, and salts, ensuring that the pipeline remains rust-free for up to 50 years. Various connection methods are available, including threaded connections, flanged connections, grooved connections, and bimetallic welding connections; all underground pipelines can be welded using these methods. By employing plastic-coated welding techniques, plastic-coated welded pipes can be seamlessly welded. Both internally and externally plastic-coated welded pipes are widely used in specialized building water supply and drainage systems, HVAC circulating water systems, petrochemical transportation pipelines, fire sprinkler systems, and natural gas and fuel gas transmission networks.
Generally, steel pipes used in harsh environments suffer from severe corrosion, which significantly shortens their service life. On the other hand, 3PE-coated steel pipes have a much longer service life—typically around 30 to 50 years. Proper installation and usage can further reduce maintenance costs for pipeline networks. Additionally, these pipelines can be equipped with alarm systems that actively detect leaks, accurately pinpoint the location of common faults, and trigger automatic alarms.
The base materials for 3PE anti-corrosion steel pipes include seamless, spiral-welded, and straight-seam types. They can be categorized into two main types: inner lining and outer wall. The inner-lining anti-corrosion methods primarily include cement mortar fabric-coated steel pipes, which are widely used and cost-effective, as well as cement mortar fabric-coated steel pipes with a cement mortar anti-corrosion layer—both of which provide effective corrosion protection for pipelines.
3PE anti-corrosion steel pipes are also suitable for pipelines used to convey waste residues and return water in the process of thermal power plants. They are highly applicable to water supply pipelines for sprinkler fire suppression systems. These pipes serve as cable protection conduits for power, telecommunications, highways, and other infrastructure projects. They are ideal for water supply systems in high-rise buildings, heating networks, municipal water supply projects, gas transmission, and underground water pipelines. They are also used in oil pipelines, chemical industries, textile dyeing, and other sectors—making them perfect for transporting corrosive media, as well as for sewage treatment and discharge pipelines, sewer systems, and anti-corrosion projects for biological ponds. Additionally, they are suitable for agricultural irrigation pipelines, deep-well pipelines, and drainage networks.
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