Common methods for anti-corrosion of 3PE anti-corrosion steel pipe

Common methods for anti-corrosion of 3PE anti-corrosion steel pipes:

1. Steel pipeline anti-corrosion generally uses two main methods: outer coating and cathodic protection.

2. Although most of the surface of the pipeline is covered by the coating, a slight leak will cause incredible corrosion rates, or even holes or cracks. Therefore, in pipeline anti-corrosion, the coating system and cathodic protection are generally used together to achieve 99.99% coverage to avoid unimaginable consequences in the future.

3. The cathodic protection selected for pipeline anti-corrosion is divided into dedicated cathodic protection and impressed current cathodic protection.

4. The purpose of the anti-corrosion coating for 3PE anti-corrosion steel pipes is to form a continuous covering layer of insulating material to directly insulate the metal from the electrolyte in direct contact so that no correct electrolytic reaction can occur.

5. Disconnected points during the coating laying process are called leakage points. The main reason for occurrence is during coating, transportation, or installation. It may also occur due to coating aging, soil stress, or pipe movement in the soil. No Promptly detect damage caused by third parties.