Structural Characteristics And Specifications of 3PE Coated Pipes
1. Bottom layer: 3PE coated pipes adopt epoxy resin. It mainly plays a role in enhancing the adhesion between the coating and the surface of the steel pipe, and provides certain anti-corrosion properties.
2. the middle layer: adhesive layer. Its main function is to ensure a tight bond between the bottom layer and the outer layer. This prevents the coating from falling off or delaminating during the use of the steel pipe.
3. Outer layer: polyethylene layer. This is the thickest layer of the coating and has excellent wear resistance, impact resistance and chemical resistance. Therefore, this can effectively resist the erosion of the external environment on the steel pipe.
·Coating standard:
ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water
ISO 21809 Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems
DIN 30670 Polyethylen coatings of steel pipes and fittings
·Size:
Outer Diamter: 219.1mm – 4064mm (8″ – 160″)
Wall Thickness: 3.2 mm – 40mm
Length: 6mtr-18mtr
·Surface
Lightly oiled,
Hot dip galvanized,
Electro galvanized,
Black,
Bare,
Varnish coating
Anti rust oil, Protective Coatings
Equipment of 3PE Coated Pipes
3PE coated pipes are widely used in oil, natural gas, chemical, electric power and other industries of long-distance pipeline engineering. Due to its excellent anti-corrosion properties and long service life, this pipe has become one of the preferred materials in modern pipeline engineering.
In terms of construction, the installation of 3PE pipes is similar to that of ordinary steel pipes. However, it should be noted that workers should try to avoid damage to the coating during the installation process. Inspect and maintain the installed pipes regularly. In this way, problems such as coating breakage or peeling can be detected and dealt with in time to ensure the long-term safe operation of the pipeline.
Conclusions
1. Conclusions of advantages
(1) Excellent anti-corrosion performance: the three-layer structure forms a dense anti-corrosion layer, effectively isolating the internal and external environment.
(2) Long service life: it greatly extends the service life of the steel pipe and reduces the cost of replacement and maintenance.
(3) Convenient construction: Compared with ordinary steel pipes, the installation and connection method of 3PE coated pipes is more simple.
(4) Environmental protection and energy saving: the coating material is non-toxic and harmless, meets the requirements of environmental protection, and can reduce energy consumption during use.
2. Conclusions of applications
(1) Oil and gas transportation: They are ideal for long-distance oil and gas transportation. And they can effectively resist the erosion of corrosive media, moisture and microorganisms in the soil to ensure the safe transportation of oil and gas in the pipeline. At the same time, their good mechanical properties can also withstand the pipeline in the laying and running process of various stresses.
(2) Urban gas: With the popularity of urban gas, the safety and reliability of gas pipelines are increasingly required. The pipeline has excellent corrosion resistance and sealing performance, which can effectively prevent gas leakage and ensure the safety of residents’ lives and property.
(3) Water supply and drainage system: In the urban water supply and drainage system, the pipeline needs to withstand the corrosion of different water quality and the influence of the external environment. So it can be used in urban water supply, drainage and sewage treatment pipes. This extends pipe life and reduces maintenance costs.
(4) Chemical industry: In chemical enterprises, various corrosive chemical materials need to be transported through pipelines. 3PE pipe can resist the erosion of a variety of chemical substances to ensure the safe and stable operation of chemical production.
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