Detailed Introduction of 3PE Anticorrosion Steel Pipe

3PE anticorrosion steel pipe is usually used in all kinds of engineering pipeline projects. Since it is carbon steel pipe is widely used in pipeline systems for transporting oil, natural gas, water and other fluids.

In this case, they should have high resistance to chemical corrosion, moisture, harmful environment and other corrosive properties. Therefore, it is necessary to make the pipeline coating with corrosion resistance.

Therefore we usually use 3PE, 2PE, FBE anti-corrosion and another lining anti-corrosion method. Usually use 3LPE coating, including 3 layers of polyethylene. 3PE anti-corrosion steel pipe has good impact resistance, abrasion resistance, impact resistance, acid resistance, high quality and long service life.

What is 3PE anti-corrosion steel pipe?

3PE, we also called 3LPE. 3PE anticorrosion steel pipe is a coating method for carbon steel pipe. Whether it is welded steel pipe, stainless steel pipe or alloy steel pipe, nickel alloy pipe or seamless steel pipe with CRA cladding or lining pipe, all of them can be coated with 3PE on the pipe.

Apart from 2PE, 2PP and 3PP, 3PE coating is the most commonly used method of corrosion protection. The manufacturing process of these coatings is similar but the raw materials are different. The manufacturing process of this 3LPE is very simple. And it has good corrosion resistance and excellent anti-corrosion effect.

This cheap anti-corrosion process is generally accepted worldwide. 3PE can enhance the mechanical properties of the pipeline, high resistance, waterproof, wear-resistant and anti-aging. It can protect the pipeline from heat loss which only accounts for 1/4 of the pipeline.

Usage of 3PE anticorrosion steel pipe

We use 3LPE anticorrosion steel pipe in long distance transmission of natural gas, crude oil and refined oil. It is also used in city gas piping systems, storage tanks and trench piping systems.The main use of 3PE is to protect pipelines used in the power and communication industries as well as water piping systems.

Layers of 3PE anti-corrosion steel pipe

As the name suggests, 3PE coating includes 3 layers.

The first layer of 3PE coating:

Fusion bonded epoxy resin, thickness >100μm.(Thickness of FBE coating >100μm)

Second layer of 3PE coating:

Adhesive layer. It bonds the epoxy resin and PE layer. (Thickness of the second layer is 170 to 250 μm.)

Third 3PE coating:

PE layer. The thickness is 2.5mm to 3.7mm. It is polyethylene, which has the advantages of resistance to water, electricity and mechanical damage. This is a very important layer.

From the layer of 3PE, you will find that 3PE anti-corrosion steel pipe has the advantages of FBE and PE. It is more and more widely used in underground pipelines for the transportation of water, gas and oil. This also means that if a factory has 3PE coated steel pipe manufacturing equipment, they can also manufacture FBE coated pipe.

Properties of 3PE anti-corrosion steel pipe:

High sealing. It saves energy, reduces cost and protects the environment in long-term operation.

High corrosion resistance. The builder is simply speedy. The service life is up to 30~50 years.

Good corrosion resistance and impact resistance, low water absorption. PE at low temperature (less than 0.01%).

High strength epoxy resin. PE absorber and hot melt adhesive flexibility, etc. with high corrosion reliability.

Features and advantages of 3PE anti-corrosion steel pipe

Long service life

3PE anti-corrosion steel pipe can be extended for more than 50 years. This is because the 3PE coating has good stability and anti-aging properties under normal working temperature and pressure conditions.

Corrosion resistance performance

The elements of PE structural stability are high. Therefore, we can use it to prevent the corrosion of natural gas, LPG, man-made gas and other chemicals. And it doesn't need secondary anti-corrosion equipment. Soil chemicals using 3LPE coating will not have any effect on the steel pipe.

Flexibility

3PE coating is a flexible material that breaks after extending 5 times. Easy to bend without damage.3PE coated steel pipe can be bypassed to reduce installation costs.

Superior Impact and Vibration Resistance

One of the important features of 3LPE coating is that 3pe is not fragile at low temperatures. The temperature is safe in the range of -60℃ ~ 60℃. So it can adapt to the downpipe shutdown in winter.3PE pipe has good impact properties, so it is not easy to break.

Tests show that the abrasion resistance of PE pipe is 4 times that of bare steel pipe. Especially for conveying slurry, PE coated pipe has better abrasion resistance compared to painted steel pipe.3PE has a smooth surface with a mating factor of 0.009.

3PE coated steel pipes have a smooth inner surface and non-stick properties, resulting in higher water transfer capacity and reduced pressure loss during transportation.

The low water permeability properties of 3PE coated steel pipe improve its isolation from seawater compared to other coating systems and FBE coated pipes.

PE material is a green material, non-toxic and harmless. It does not add heavy metal stabilizers to the manufacturing process of 3LPE coated steel pipes. 3PE can be recycled and therefore does not pollute the environment.

These properties make PE pipes suitable for flammable and explosive conditions.

Safe and Reliable Connection

3PE coated steel pipe mainly adopts heat fusion and heat fusion connection to keep the interface and the pipe connected as a whole. No water and gas leakage.

Lightweight, easy to move, easy to construct

The weight of 3PE is very light. It only accounts for 1/8 of the weight of steel pipe. it is easy to move and bend. It is easy to move, bend, and its welding process is quick and easy. It has obvious economic benefits in the whole project.