TPEP Anti-corrosion steel pipe is a kind of steel pipe that adopts hot-melt bonded epoxy powder （TPEP）technology to carry out internal and external wall anti-corrosion treatment. It combines the adhesion, anti-corrosion and chemical resistance of epoxy resin, as well as the anti-aging and abrasion resistance of polyethylene. It has excellent anti-corrosion performance, high mechanical strength, high temperature resistance, convenient construction and other characteristics, and is widely used in petroleum, natural gas, chemical, municipal engineering and other fields.

The inner lining is made of stainless steel without repair technology, and its characteristics are as follows:

Simple and convenient construction, good sealing performance, and strong pressure bearing capacity;

The inner surface does not need to be repaired after welding;

The stainless steel layer is tightly bonded to the carbon steel layer without any gaps;

Fully utilizing the corrosion resistance of stainless steel;

Welding connection process:

Using a matching device for matching and semi-automatic welding, the matching efficiency is fast and the welding quality is good.

Process flow: The operation is carried out in the sequence of one point solid welding, one composite layer welding, one filling layer welding, and one cover layer welding.

1.     TPEP anti-corrosion is currently the most advanced steel pipe anti-corrosion technology, with a service life of over 50 years. It has a usage history of several decades both domestically and internationally.

2.     Strong adaptability to terrain. Steel pipes have strong flexibility.

3.     Low basic requirements, no need for sand cushion layer, and can be directly backfilled with original soil after welding, reducing construction costs.

4.     Resistant to high pressure, water hammer impact, and strong pressure bearing capacity.

5.     The inner wall friction coefficient is small, the head loss is small, and the energy consumption for conveying the same flow rate is reduced.

6.     The inner wall friction coefficient is small, the head loss is small, and the energy consumption for conveying the same flow rate is reduced.