Life of three layer polyethylene coating

What is pipe coating?

A pipeline coating is a cost-effective and feasible solution to maintain the integrity of pipelines. To protect pipelines from being damaged, or to be impacted through corrosion, this coating provides a continuous protective lining. Pipeline coating is said to be one of the most reliable corrosion prevention methods used by industries today.

Three layer coating

Why do pipelines need coating?

Pipe coatings protect pipelines from corrosion-related defects. They are just one element of the total package operators that work to ensure that their pipelines are well protected. Cathodic safety and integrity assessments are also used to prevent erosion and to detect any defects arising from erosion.

What is three layer polyethylene coating Pipe Coated Steel Pipe?

Three layer polyethylene coating also known as 3LPE coating. 3LPE coated steel pipe, also known as 3PE, is a type of coating method used in carbon steel pipe. No matter to which pipe it is, whether it is the seamless steel pipe, welded steel pipes, stainless steel pipes or alloy steel pipes, it can do 3LPE coating for the steel pipe. The common use of 3LPE coated steel pipes is in the pipeline industry. Since carbon steel pipes are widely used in pipeline systems for the transportation of oil, gas, water, and other liquids.

Features / life of 3 LPE pipe coating

👉 Steel pipes with 3 LPE coating have high tightness, as it can save energy, reduce costs, protect the environment in long-term operation.

👉 The corrosion resistance of 3LPE coated steel is very strong.

👉 Resistant to cathodic dissolution.

👉 Has high performance and extended cycle life

👉 The service of this pipe is 30-50 years long.

👉 High strength epoxy. Polyethylene (PE) absorbent and the hot melt adhesive softness material, etc. have high corrosion reliability.

Coating layers

3LPE coated pipe has 3 layers of coating.

Layer 1: The first layer is of fusion bonded epoxy, which protects the pipe from corrosion if needed.

Layer 2: Copolymer adhesive layer that has a natural connection with the inner layer and the top.

Layer 3: Polyethylene coating which helps to avoid any physical damage to the pipe.

3LPE coated pipe is used for transmission of oil and gas as it can withstand higher temperatures than other pipes. It can withstand various temperatures ranging from dry land desserts to underwater pressures, from hot temperatures to cold winters. The 3-layer coating helps withstand all weather conditions and the polyethylene coating helps in withstanding physical damage.

Benefits of 3LPE Coating Pipe

1. Durable lifetime

3LPE coated steel pipe has a service life of over 50 years. This is because the 3LPE coating has good stability and anti-aging performance, which works under normal temperature and pressure conditions.

2. Corrosion Resistance

The elements of Polyethylene (PE) structures stability are high. Therefore, we can use it to prevent corrosion from natural gas, liquefied petroleum gas, synthetic gas and other chemical matters. And it requires no secondary anti-corrosion equipment. Ceramics have no effect on steel pipes using 3LPE coating.

3. Flexibility

3LPE coating is a kind of soft and flexible material, it breaks after lasting 5 times. It is easy to bend without loss. 3PE coating steel pipe can bypass steel pipe and reduce installation fees.

4. Secure and reliable connection way

The 3LPE coating steel pipe mainly uses hot melt and interconnected connections, which connect the interface and the pipeline as a whole. There is no leakage of water and gas in this coated steel pipe.

5. Light and easy to move

The 3LPE coated pipe is lighter in weight. It only weighs 1/8 of the steel pipe. Due to its characteristics of softness and corrosion resistant properties, it is easy to move, and easy to bend. The welding process of this pipe coating is convenient and fast.

For a better understanding about 3LPE coated steel pipe for a competitive guide visit this article.

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