Anti-corrosion treatment on SSAW steel pipes for water transportation

When SSAW (Spiral Submerged Arc Welded) steel pipes are used for water transportation, particularly for carrying tap water or drinking water, it is crucial to apply the right anti-corrosion treatment to ensure both the durability of the pipes and the safety of the water being transported.

For pipes used in drinking water systems, the inner wall is typically coated with IPN8710, a non-toxic anti-corrosion coating. This coating ensures that the water remains free from contamination and maintains its quality. On the outer wall, epoxy coal pitch anti-corrosion is commonly used to protect the steel from external elements and environmental wear. In some cases, both the inner and outer walls of the pipe can be coated with plastic anti-corrosion materials, or TPEP (Three-layer Polyethylene) coating, which offers additional protection and is also suitable for drinking water applications. These coatings are designed to maintain water quality and prevent any harmful substances from leaching into the water during transportation.

For SSAW steel pipes used to transport sewage or industrial water, the anti-corrosion treatment requirements are somewhat different. Generally, the inner and outer walls are coated with epoxy coal pitch anti-corrosion, which is cost-effective, easy to apply, and highly effective at resisting water, moisture, and chemicals commonly found in wastewater or industrial water systems. This treatment is especially suitable for applications where the pipes are not exposed to the same stringent quality requirements as drinking water systems. However, if budget allows and enhanced protection is desired, a plastic coating or TPEP anti-corrosion layer can also be applied to further improve the durability and longevity of the pipes in harsh industrial environments.

In summary, the choice of anti-corrosion treatment for SSAW steel pipes largely depends on the type of water being transported. For drinking water, non-toxic, high-quality coatings are essential to protect both the pipe and the water quality. For sewage or industrial water, a more cost-effective and durable solution like epoxy coal pitch coating is often sufficient, though more advanced treatments like plastic coatings or TPEP are available for added protection.

Union Steel Industry Co., Ltd is professional SSAW steel pipes manufacturer, for more details, please contact:sales@union-steels.com