Internal anti-corrosion steel pipe is a kind of special anti-corrosion treatment of the inner wall of the steel pipe, widely used in oil, natural gas, chemical industry, water supply and drainage and other fields, can effectively prevent the corrosion of the conveying medium to the pipe wall, prolong the service life of the pipeline. According to different working conditions, various internal anti-corrosion processes can be used, mainly including the following types:
FBE internal anti-corrosion steel pipe: Using molten epoxy powder coating, strong adhesion, chemical corrosion resistance, suitable for oil and natural gas pipelines.
Anticorrosive steel pipe in liquid epoxy coating: The anticorrosive coating is formed through spraying or rolling coating process, which is commonly used in water transmission and chemical medium pipeline.
Cement mortar lining internal anti-corrosion steel pipe: Mainly used for municipal water supply and drainage pipe, low cost and good corrosion resistance.
Polyurethane / polyethylene lined anticorrosive steel pipe: Suitable for highly corrosive media, such as acid, alkali and salt solution delivery.
The advantages of internal anticorrosion-resistant steel pipes include:
Extend pipe life: Effectively prevent internal wall corrosion and reduce maintenance and replacement costs.
Improve delivery efficiency: A smooth anticorrosive layer can reduce fluid resistance and reduce scaling.
Strong adaptability: The appropriate internal anticorrosion scheme can be selected according to the medium characteristics (temperature, corrosion).
In the fields of oil field water injection, chemical fluid transportation, urban water supply and so on, the application of internal anti-corrosion steel pipe significantly improves the safety and economy of pipeline, and is an ideal choice under corrosion environment.
When purchasing Internal anti-corrosion steel pipe, besides quality, what other details do users focus on?
Anti-corrosion technology: The corrosion resistance of the coating and lining plastic, especially long-term performance in sulfur- and acid-containing environments, is crucial. Different media have widely varying material requirements. When purchasing, we must select the appropriate internally-coated steel pipe based on the specific application.
Production process: The production process often determines production accuracy and efficiency. Precision control within a ±0.1mm range is required, including non-destructive testing of welds to ensure pipe integrity.
Smooth media transport: When transporting media, we need to consider the smoothness of the inner wall. When transporting media requiring low resistance, such as water and oil, the inner wall roughness is a concern. Excessive roughness increases head loss. For example, in municipal water pipelines, for every doubling of the roughness, pump energy consumption may increase by 10%.
Susceptibility to scaling: Drinking water and circulating water pipelines require particular attention to scaling. For internal anti-corrosion steel pipe with stringent internally-coated requirements, descaling may be required every 3-5 years to prevent disruptions to transport.
As a professional manufacturer of internally anti-corrosion steel pipes, we provide customized anti-corrosion solutions to ensure our pipes perform effectively in harsh environments. We perform coating adhesion testing, spark detection, and full-scale hydrostatic testing on every product we ship. If you encounter any problems during use, please contact us.
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