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Steel pipe polypropylene 3PP anti-corrosion

Steel pipe polypropylene 3PP anti-corrosion

2PP/3PP Anti-corrosion Steel Pipe Specifications: Φ89mm–Φ3200mm Material: Q235B, Q345B, 10# Steel, 20# Steel, Grades X42–X80 Standards: SY/T7041-2016, DIN30678 Advantages of the Anti-corrosion Coating The three-layer polyethylene anti-corrosion coating combines the excellent properties of both epoxy coatings and extruded polyethylene coatings. It integrates the interfacial characteristics and chemical resistance of epoxy coatings with the mechanical protection features of extruded polyethylene coatings, significantly enhancing the performance of each component. Therefore, it serves as an outstanding external protective layer for buried pipelines. According to relevant data, the three-layer PE coating can extend the service life of buried pipelines up to 50 years and is currently recognized internationally as one of the most advanced pipeline external anti-corrosion technologies. In 3PE anti-corrosion systems, the three-layer PE coating has been first applied in oil and gas systems. The Shaanxi-Beijing natural gas pipeline and the Kuerle-Shanshan oil pipeline—both already completed in China—along with the nearly 4,000-kilometer West-to-East Gas Pipeline project, all utilize the three-layer PE external anti-corrosion coating. Additionally, the 67-kilometer high-pressure pipeline from Shaanxi to Tianjin, the 30-kilometer outer ring high-pressure natural gas pipeline, and the 122-kilometer pipeline of the Shaanxi-Beijing underground gas storage facility also employ the three-layer PE coating. As such, the three-layer PE coating has become the leading direction for the future development of external anti-corrosion coatings for pipelines. Applications: The product is widely used in oil pipelines, natural gas pipelines, heating pipelines, and water supply pipelines. Application Scope: Currently, China has not yet established an industry standard for 3PP coatings. Therefore, the 3PP anti-corrosion pipelines produced generally follow the German standard DIN30678 “Polypropylene Coatings for Steel Pipelines.” The 3PP coating is primarily used as an anti-corrosion layer for pipelines transporting media at relatively high temperatures, as well as for pipelines located in desert regions characterized by high surface temperatures and prolonged sunlight exposure. Consequently, it has gained increasingly widespread application on buried water, gas, and oil pipelines in areas with high surface temperatures and long periods of sunlight.

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Anti-corrosion Steel Pipe

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Product Description

2PP/3PP Anti-corrosion Steel Pipe

Specifications: Φ89mm–Φ3200mm
Material: Q235B, Q345B, No. 10 Steel, No. 20 Steel, Grades X42–X80
Standards: SY/T7041-2016, DIN30678

Corrosion-resistant coating performance advantages

The three-layer polyethylene anti-corrosion coating combines the excellent properties of both epoxy coatings and extruded polyethylene coatings. It integrates the superior interfacial characteristics and chemical resistance of epoxy coatings with the robust mechanical protection provided by extruded polyethylene coatings, thereby significantly enhancing the performance of each component. As a result, it serves as an exceptionally effective external protective layer for underground pipelines. According to relevant data, the three-layer PE coating can extend the service life of buried pipelines up to 50 years, and it is currently recognized internationally as one of the most advanced pipeline external anti-corrosion technologies. In 3PE anti-corrosion systems, the three-layer PE coating has been pioneered in applications within oil and gas systems. China’s already-completed Shaanxi-Beijing natural gas pipeline and the Kuerle-Shanshan crude oil pipeline—both part of the West-to-East Gas Pipeline project spanning nearly 4,000 kilometers—have adopted the three-layer PE external anti-corrosion coating. Additionally, in 3PE anti-corrosion systems, the 67-kilometer high-pressure pipeline from Shaanxi to Tianjin, the 30-kilometer high-pressure natural gas pipeline along the Outer Ring Road, and the 122-kilometer pipeline connecting the Shaanxi-Beijing line to the underground gas storage facility have all utilized the three-layer PE coating. The three-layer PE coating has thus become the leading direction for the future development of external anti-corrosion coatings for pipelines.

Usage:

The products are widely used in oil pipelines, natural gas pipelines, heating pipelines, and water supply pipelines.

Scope of application:

Currently, China has not yet established industry standards for 3PP coatings. The 3PP anti-corrosion pipelines currently being manufactured generally adhere to the German standard DIN 30678, "Polypropylene Coatings for Steel Pipelines." 3PP coatings are primarily used as anti-corrosion layers for pipelines transporting media at relatively high temperatures, as well as for pipelines in desert regions characterized by high surface temperatures and prolonged sunlight exposure. Consequently, these coatings have been increasingly adopted for underground water, gas, and oil pipelines in areas with high surface temperatures and extended daylight hours.

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Single-layer epoxy powder (FBE) and double-layer epoxy powder (2FBE) anti-corrosion for steel pipes

Steel pipe polyethylene 3PE, 2PE anti-corrosion

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