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Contact: Cheng Huijiang

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Introduction of Anti - corrosion Technology of Polyethylene Cold Strip in Gas Pipeline

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Introduction of Anti - corrosion Technology of Polyethylene Cold Strip in Gas Pipeline

Release date:2016-07-27 The author: Click on:

With the continuous improvement of urbanization and modernization, buried underground winding of polyethylene and the number of pipes is also increasing, many underground pipes and soil or long-term contact with water, will produce chemical corrosion, the safe operation of the pipe network And the service life brings significant harm. Because the gas pipeline corrosion, the need for pipeline inspection, replacement, or even stop production, to the state and enterprises to bring direct or indirect economic losses. When the gas pipeline due to corrosion perforation occurs when the phenomenon of leakage, not only will affect the environment, serious also cause explosion and fire, will bring people life and property damage.

Insulation method is through the pipeline coated with insulating insulation layer, such as the use of asphalt, glass cloth and other substances, the outer wall of the pipeline wrapped with the formation of the soil isolated state, so as to avoid direct contact with the soil pipe, can be effective Reduce the corrosion of the outer wall of the pipeline. This requires a more intact isolation layer, but also to protect the electrical insulation performance and water barrier performance. Avoid the presence of electrolyte in the soil to penetrate the pipe contact surface to prevent the occurrence of electrochemical corrosion. Pipeline insulation should generally meet the following basic requirements: The first is to keep the pipe sticky intact, let it remain intact, to have good water resistance and chemical stability, the material to corrosion resistance, easy construction. Polyethylene adhesive tape


Related tags:Polyethyleneadhesivetape

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