3LPE Coating Seamless Pipes

In pipeline projects, 3LPE coating seamless pipes are widely used. Pipelines for the transportation of oil, gas, water, and other fluids are commonly made of carbon steel tubing. In such situations, they must be highly resistant to corrosive materials, moisture, and adverse environmental factors, among other things. As a result, anti-corrosion pipe coating is needed. As a consequence, 3PE, 2PE, FBE coated, and other lining methods are widely used. 3LPE, or three-layer polyethylene, is a popular coating. Impact resistance, abrasion resistance, shock resistance, acid resistance, high quality, and long service life are all advantages of the 3PE coating seamless pipes.

What is 3PE coated Seamless pipe？

3PE was also known as 3LPE. One type of coating method used in carbon steel pipe is 3PE coated seamless pipe. It may coat pipes in 3PE coating, whether they are seamless steel pipes or welded steel pipes, stainless steel pipes or alloy steel pipes, nickel alloy pipes, or CRA clad or lined pipes.

In addition to 2PE, 2PP, and 3PP, 3PE coating is the most widely used anti-corrosion type. These coatings are made in the same way, but the raw materials are different. The manufacturing of 3LPE is a straightforward operation. It also has excellent corrosion resistance and anti-corrosion properties.

Uses of 3LPE coated seamless pipe

Over long distances, we use 3LPE coated Seamless pipe to transport natural gas, crude oil, and refined oil liquid. It can also be used in the piping system for urban fuel gas, storage tanks, and groove piping. The primary goal of 3PE is to secure pipes used in the electricity and communication industries, as well as water piping systems.

Layers of 3LPE coated steel pipe

Just as its name implies, 3LPE coating including 3 Layers.

The first layer of 3LPE coating:

Fusion bonded epoxy, which thickness is larger than 100μm. ( Thickness of FBE coated ＞100μm ）

The second layer of 3LPE coating:

Adhesive layer. It is binding epoxy and LPE layers. ( Thickness of the second layer: 170~250μm)

The third layer of 3LPE coating:

LPE layers. Thickness is from 2.5 mm to 3.7 mm. It is polyethylene which has advantages to anti-water, electrical resistance, and anti mechanical damage. It is a very important layer.

3PE coated steel pipe combined with the advantages of FBE and PE can be found in the layers of 3LPE. It is becoming increasingly popular in the underground transportation of water, coal, and oil. It also means that if a factory has 3LPE coated steel pipe production equipment, it can also coat FBE coated steel pipes.

Characteristics of 3LPE coated steel pipe :

• High tightness. It can save energy, reduce costs, protect the environment in long-term operation.
• Corrosion resistance is very strong. The construction side simply speed. Up to 30 – 50 years of service life.
• With good resistance to corrosion and impact resistance, low water absorption. The LPE ( less than 0.01% ) at low temperatures.
• High strength epoxy. LPE absorbent and hot melt adhesive softness, etc. have high corrosion reliability.

3LPE Coating Seamless Pipes Related Types