Steel-lined Plastic Composite Pipe

Steel-lined plastic composite pipe is a type of steel plastic composite pipe composed of galvanized steel pipe as the outer layer, polyethylene plastic as the inner layer, and dedicated hot melt adhesive as the middle layer.

There are a total of 24 products of steel-lined plastic composite pipes, divided into 12 specifications from DN15-DN200.

 

 

Excellent chemical corrosion resistance：

The inner wall of galvanized steel pipes is lined with plastic (PE, PEX, etc.), which has good acid, alkali, and salt resistance characteristics.

Excellent mechanical strength：

Steel-lined plastic composite pipes have the same excellent mechanical strength as traditional galvanized steel pipes, and have excellent resistance to impact, torsion, pressure, and other external forces.

Good hygiene performance：

The lined plastic pipes (PE, PEX, etc.) do not cause pollution to the conveying medium, which can avoid the drawbacks of yellow water in traditional galvanized pipes in water engineering and ensure water quality hygiene.

Low resistance to medium：

The inner wall of plastic pipes is relatively smooth, with a roughness coefficient of only 0.009. As a result, the flow coefficient of the medium is small, which can reduce power loss and prevent scaling, rust, and other phenomena on the pipe wall.

Easy installation：

Equipped with specialized sealing and anti leakage, rust resistant pipe fittings, traditional installation is simple, fast, and economical and reliable.

Easy maintenance of outer pipe：

The outer pipe of steel-lined plastic composite pipe is galvanized and can be maintained by spraying anti rust paint during long-term use. Its maintenance is convenient and can ensure long-term use.

Service life:

50 years without replacement, which can significantly reduce maintenance costs.

 

 

Construction field: Steel-plastic composite pipe can be used for building water supply, drainage, heating, air conditioning and other systems to improve the safety and service life of the pipe system.

Municipal engineering: Steel-plastic composite pipe can be used for municipal water supply, drainage, gas transmission and other projects, to provide a safe, efficient and economical pipeline system.

Industrial field: Steel-plastic composite pipe can be used in petroleum, chemical, metallurgy and other industries of the transportation pipeline, with good corrosion resistance and high temperature resistance.

Agriculture: Steel and plastic composite pipe can be used for farmland irrigation, drainage and other systems to improve the utilization rate of water resources and irrigation effect.

Mine engineering: steel-plastic composite pipe can be used in mining, slag transport and other processes, with high wear resistance and pressure capacity.

Transmission line: Steel-plastic composite pipe can be used as the cable protection pipe in power, communication and other industries to protect the cable from external influence.

Ship manufacturing: Steel-plastic composite pipe can be used in the pipe system of ships, with high corrosion resistance to seawater corrosion performance.

Sewage treatment: Steel-plastic composite pipe can be used for the transportation and treatment system of sewage treatment plant to improve the efficiency of sewage treatment.

Compared with the traditional steel pipe, the steel-plastic composite pipe has obvious advantages in corrosion resistance. The inner wall of the steel-plastic composite pipe is usually made of plastic layers, such as ultra-high molecular weight polyethylene (UHMW-PE) or other thermoplastics with excellent chemical stability, which can effectively prevent the corrosion of the pipeline and prolong the service life of the pipe. At the same time, the steel-plastic composite pipe can also resist the erosion of a variety of chemical substances, suitable for a variety of complex environmental conditions.

In contrast, although the traditional steel pipe has a certain corrosion resistance, it is prone to corrosion in long-term contact with strong acid and alkali and other chemical media, leading to pipeline aging, water leakage and other problems. In addition, the corrosion resistance of traditional steel pipes will further decrease in certain specific environments, such as the Marine environment or the environment containing corrosive gases.

 

 

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