What are 3PE anti-corrosion coating steel pipes?

PINDEE PIPE EXPOUND What are 3PE anti-corrosion pindee steel pipe?

The base materials of 3PE anti-corrosion pindee steel pipe include seamless steel pipe, spiral steel pipe and straight seam steel pipe. The three-layer polyethylene (3PE) anti-corrosion coating has been widely used in the oil pipeline industry for its good corrosion resistance, water vapor permeability resistance and mechanical properties. The anti-corrosion layer of 3PE anti-corrosion steel pipe is crucial to the life of buried pipelines. Some pipelines of the same material are buried underground for decades without corrosion, while others leak in a few years. This is because they use different external anti-corrosion layers.

3PE anti-corrosion pindee steel pipe

3pe coated pindee steel pipe manufacture in China
sell 3pe coated pindee steel pipe

9 reasons why 3pe anti-corrosion spiral pipe can prevent corrosion. 3pe anti-corrosion steel pipe, as its name implies, is a three-layer anti-corrosion PE steel pipe. 3PE anti-corrosion pindee steel pipe is a widely used steel pipe with good corrosion resistance.

Common application methods of 3pe anti-corrosion spiral pipe: 1. Pipe anti-corrosion usually adopts two commonly used main methods of external coating and extreme protection. 2. Although most of the surface of the pipe is covered with coating, a slight leak will cause incredible corrosion rate, even detachment or cracking. Therefore, in the anti-corrosion of pipe, the coating system and extreme protection are usually used together to achieve a 100% coverage rate to avoid unimaginable causes in the future.

The extreme protection adopted for pipe anti-corrosion is divided into sacrificial extreme protection and impressed current extreme protection. The purpose of coating 3pe anti-corrosion spiral pipe is to form a continuous covering layer of insulating material, which directly insulates the metal from the electrolyte in direct contact with it, so that it cannot produce a correct electrolytic reaction.

Principle of protection of 3pe anti-corrosion spiral pipe with impressed current: by applying an amplitude current to the protection metal, when the potential of all the poles reaches the open circuit potential of the active anode surface through polarization, the corrosion on the structure is stopped. Composition of impressed current protection: rectifier and constant potential instrument 8. Rectifier: converts AC into DC, 3pe anti-corrosion spiral pipe constant potential instrument: an electronic instrument that can actively control the constant potential of the pipe.

Excellent electric resistance,anti-static performances:

These characteristics of the non-continuous surface outside the coating laying process of 3pe anti-corrosion spiral pipe is called leakage surfacemake 3pe coated pindee steel pipe manufacture in China suitable for flammable and explosive environments.

The main reason for the occurrence is the occurrence outside the coating, transportation or installation process, or it may be caused by coating aging, soil stress or the movement of the pipe outside the soil, and the damage caused by the third party is not discovered in time.

Pindee Pipe manufacture pipe fittings,steel pipes and flanges products more than 30 years,PINDEE sell 3pe coated pindee steel pipe for seamless steel pipe,welded steel pipe,stainless steel pipe,carbon steel pipe,alloy steel pipe,nickel alloy pipes,CRA clad or lined pipe.If you want to know more about our piping products,please email us:sales@pindee.com