3PE coated pipe performance

Anti-corrosion steel pipe is a pipe material that prevents corrosion of steel pipes and prolongs the service life of steel pipes. Since the steel pipe works in a humid, humid, salt spray and corrosive environment for a long time, it is easy to cause corrosion on the surface and interior of the steel, resulting in a decline in the performance of the steel pipe. Therefore, anti-corrosion steel pipes came into being.

This project is the steel pipe coating project of the owner Sonatrach, the national oil company of Algeria in May 2019.

Steel pipe specification: 711.2*14.7*11900,

Quantity: 120 pieces

Anti-corrosion meters: 1420.8

Steel pipe specification: 711.2*14.7

Quantity: 210 pieces

Anti-corrosion meters: 2490.195

Steel pipe specification: 508*10.3

Quantity: 70 pieces

Anti-corrosion meters: 830.06

The National Oil and Gas Company of Algeria was established in 1963 to manage the country’s oil industry. At the beginning of 1997, the company’s oil reserves were 1.25 billion tons and natural gas reserves were 3.6 trillion cubic meters. Algeria is one of the world’s largest natural gas exporters and the second largest natural gas supplier in the EU. In 2021, Algeria’s natural gas exports will reach 55 billion cubic meters, 80% of which will go to Europe. According to IEA statistics, in the first half of this year, Algeria exported 4.577 billion cubic meters of natural gas to Spain, a year-on-year increase of more than 38%.

This time the outer coating adopts the anti-corrosion standard of NFA 49-710. The purpose of using the outer anti-corrosion layer is to increase the service life of the steel pipe anti-corrosion layer several times for the buried pipeline. Pipes of the same material may be as long as a few years. Leakage occurs, and some of them have been buried underground for decades without corrosion, because they have adopted an external anti-corrosion layer. Therefore, the use of anti-corrosion coating is very important to increase the service life of the pipeline.

The inner coating adopts the API 5L2 RP standard, and the coating thickness is 80um liquid epoxy rent-reducing coating, which is used to transport natural gas. The most notable features of the inner coating are smooth surface, anti-corrosion and reduced transmission resistance to prevent scaling on the inner wall .

Anti-corrosion types of pipeline anti-corrosion insulation coating can be processed in a variety of ways, including epoxy powder (FBE), double-layer epoxy powder (DPS), two-layer polyene (2LPE), three-layer polyethylene (3LPE), three-layer polypropylene (3LPP), pipeline inner coating, foam jacket composite insulation pipe, oil pipe inner coating, drill pipe inner coating marine pipeline concrete counterweight, petroleum asphalt, coal tar enamel coating, etc., each of which has its own specific anti-corrosion materials The application scenarios and protection effects can be widely used in various industries, such as petroleum, chemical, natural gas, water treatment and other fields.
The company has been implementing an extremely strict quality control system, implementing strict factory quality control inspections, so that unqualified products will not flow into the market. We advocate energy saving, environmental protection, safety and high efficiency, and strive to make each product better. At the same time, we advocate humanity and personalization, and strive to meet the needs of users at different levels. We will continue to pursue value and continuously improve product performance and quality. , in the past to provide customers with value-added products and services.