Installation and Maintenance Guide of Internal and External Plastic Coated Steel Pipe for Water Supply

Number of visits：1 seconds Update time：2025-01-19

I. Appearance Characteristics

(1)Color Identification

Water supply internal and external plastic coated steel pipe usually presents eye-catching red or green color, which contrasts with the common gray and white color of ordinary steel pipe. This color design not only facilitates on-site identification, but also serves as a visual warning to alert staff to the presence of the pipe to avoid accidental damage.

(2)Surface smoothness

The surface of the internal and external plastic coated steel pipe for water supply has been specially treated to be extremely smooth. This feature makes it difficult for scale to adhere to, thus effectively protecting water quality and reducing pipe clogging and water quality degradation caused by scale accumulation. In contrast, the surface of ordinary steel pipe is rough, easy to become a breeding ground for dirt and microorganisms, long-term use will affect water quality, increase the difficulty of pipeline cleaning and maintenance.

(3)Uniformity of specifications

In terms of size specifications, internal and external plastic coated steel pipe for water supply follows a unified standard, which brings great convenience for construction and installation. Uniform specifications mean that large-scale production and procurement can be carried out, which reduces the cost and also simplifies the matching and connection work in the construction process. The specifications of ordinary steel pipe is relatively diverse, often need to be customized according to the specific needs of the project, which not only increases the procurement costs, but also brings a lot of inconvenience to the construction, prolonging the construction cycle.

II. anti-corrosion performance

(1)Corrosion resistance

One of the core advantages of internal and external plastic coated steel pipe for water is its excellent corrosion resistance. Through special internal and external coating technology, this steel pipe is able to withstand a variety of harsh environments, including acidic and alkaline soils and bodies of water containing corrosive chemicals. This enables it to maintain a long-term stable working condition in a wide range of industrial and civil water supply scenarios, greatly extending the service life of the pipe. On the contrary, ordinary steel pipes, lacking effective anti-corrosion coatings, are easily damaged when faced with similar corrosive environments, leading to problems such as leakage and rupture of pipelines, which not only increase the cost of repairs, but may also lead to safety accidents.

(2)High temperature stability

Under high temperature environment, the coating of internal and external plastic coated steel pipe for water supply shows excellent stability. Even at elevated temperatures, the coating does not peel off, ensuring the integrity and safety of the pipe. This is crucial for high temperature application scenarios such as hot water supply systems and industrial cooling water circulation. Ordinary steel pipe is prone to deformation under high temperature conditions, which not only affects its own structural strength, but also may lead to loose connections, triggering leaks and other failures, seriously affecting the normal operation of the system.

III.Wear resistance

(1)Impact and wear resistance

The inner coating of internal and external plastic coated steel pipe for water supply is not only corrosion-resistant, but also has strong abrasion resistance. It can effectively resist the impact and abrasion of hard particles such as sand and gravel in the water flow, and protect the steel pipe matrix from damage. This is particularly important for piping systems that transport water containing impurities or operate under high flow conditions. Ordinary steel pipes, due to the lack of a protective layer on the surface, are prone to wear and scratches during long-term use, which can further aggravate the corrosion of the pipe and shorten its service life.

(2)Low Temperature Adaptability

Internal and external plastic coated steel pipes for water supply also perform well in low temperature environments. Its coating will not be deformed or embrittled due to low temperature, and always maintains good flexibility and pressure-bearing capacity. This makes it able to operate stably in cold areas or low-temperature seasons without worrying about pipe rupture due to low temperature. In contrast, ordinary steel pipes are prone to bending and deformation under low temperature conditions, especially when subjected to external forces, and such deformation may lead to pipe rupture, resulting in serious waste of water resources and environmental pollution.

IV.Installation and Maintenance

(1)Various connection methods

Internal and external plastic coated steel pipes for water supply provide a variety of convenient connection methods, such as welding, threaded connection, flange connection and so on. These connections are not only easy to operate, but also firm and reliable, which can meet different construction scenarios and user needs. Welded connections are suitable for large-scale projects and occasions requiring high-strength connections, while threaded connections are favored in small-scale projects and maintenance work due to their fast installation and easy disassembly. In contrast, ordinary steel pipes are connected in a single way, usually requiring specialized welding or threading equipment, which requires a high level of skill from the construction personnel and increases the construction difficulty and cost.

(2)Low-cost maintenance

In terms of maintenance, internal and external plastic coated steel pipe for water supply also has obvious advantages. Because of its smooth surface and corrosion resistance, only regular simple cleaning, you can maintain good use, low maintenance costs. The cleaning process is simple and easy, usually only need to use water to rinse or with a soft brush can be gently brushed to remove the surface of the dust and dirt. While ordinary steel pipe needs regular anti-corrosion and anti-rust treatment, which not only requires the use of specialized anti-corrosion coatings and equipment, but also involves a complex construction process, high maintenance costs, and short maintenance cycle, bringing a greater economic burden and maintenance workload to the user.