Is galvanized pipe still used for anti-corrosion when buried underground?

December 08, 2023

1、 Anti corrosion treatment of galvanized pipes

Galvanized pipes, as steel pipes with a surface galvanized layer, are coated with a layer of zinc to enhance their corrosion resistance. Therefore, using galvanized pipes outdoors or in humid environments is a good choice. However, in certain special situations, such as when installing pipelines underground, galvanized pipes may require further anti-corrosion coating treatment.

2、 Do galvanized pipes require anti-corrosion treatment when buried underground? When carrying out pipeline buried construction, it is often necessary to consider the anti-corrosion issues of the pipeline to ensure its safety and service life. For galvanized pipes, due to their surface being galvanized, they have a certain degree of anti-corrosion effect. However, if the pipeline is in harsh environments or buried deep, further anti-corrosion coating treatment is required.

3、 How to carry out anti-corrosion coating treatment? When carrying out anti-corrosion coating treatment on galvanized pipes, methods such as applying paint or coatings with good corrosion resistance, wrapping with anti-corrosion tape, and using epoxy coal tar or petroleum asphalt can be used. It should be noted that during anti-corrosion treatment, it is necessary to ensure that the pipeline surface is dry and clean to ensure that the coating can firmly adhere to the pipeline surface.
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4、 In general, galvanized pipes have a certain anti-corrosion effect and can be directly used for underground use. However, in situations where the pipeline is buried deeply and the environment is harsh, further anti-corrosion coating treatment is needed to extend the service life of the pipeline. When carrying out anti-corrosion coating treatment, attention should be paid to the quality of the coating and the usage environment to ensure the long-lasting anti-corrosion effect and stable performance.

Heat Shrinkable Sleeves ,3LPE Heat Shrink Sleeves，2PE Heat Shrink，Cold-Applied Polymeric Tape are popular be used for galvanized pipes.

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