Advantages of epoxy powder coated steel pipe

Firstly, the advantages of epoxy powder coated steel pipes
1. Excellent environmental performance: The hot-dip plastic process used in plastic pipes for drainage does not contain harmful substances and meets environmental protection requirements. Meanwhile, it is recyclable, which is beneficial for recycling resources.
2. Easy to install: Plastic coated steel pipes are lightweight, corrosion-resistant, and have high compressive strength. No welding is required during the installation process, which greatly reduces installation difficulties and time.
3. Lower maintenance costs: Plastic coated steel pipes have good wear resistance, which can effectively extend their service life and reduce maintenance time and cost.
 
Secondly, the wear resistance of epoxy powder coated steel pipes
Compared with traditional steel pipes, epoxy powder coated steel pipes have higher wear resistance. Due to the special treatment of the surface of the steel pipe with internal plastic coating, it has good wear resistance and can effectively resist the erosion of chemical substances (such as acid, alkali, and salt), and extend its service life.
During transportation, epoxy powder coated pipes will not wear out, thereby reducing the number and cost of pipeline system repairs. Meanwhile, due to the good elasticity of the inner coating, it can buffer external influences and reduce pressure loss in the pipeline system.
The wear resistance of epoxy powder coated steel pipes is not affected by the internal medium of the pipeline system. Whether transporting media such as water, oil, or gas, plastic coated steel pipes can maintain stable wear resistance.
 
Thirdly, the thickness standard for the anti-corrosion layer of epoxy powder coated steel pipes
The thickness of the anti-corrosion layer of epoxy powder coated pipelines is mainly specified by the national standard "General Technical Conditions for Buried Steel Pipes" (GB/T 17306-1998). According to this standard, the thickness of the anti-corrosion layer should meet the following requirements:
For ordinary level anti-corrosion layers, such as polyethylene (PE), high-density polyethylene (HDPE), and chlorinated polyethylene (PVC), the minimum thickness should be 0.7mm; For enhanced corrosion resistant layers, such as glass fibers used to enhance polyethylene (FRP), epoxy coal tar pitch (API), and epoxy ceramic (EPO), the minimum thickness should be 1.2mm.

In practical applications, due to factors such as pipelines, soil types, groundwater levels, etc., it is necessary to adjust the thickness of the anti-corrosion layer according to specific conditions. Generally speaking, the thickness of the anti-corrosion layer should be clearly specified in the design document.

Fourthly, factors affecting the thickness of the anti-corrosion layer of epoxy powder coated steel pipes
1. Environmental factors: Environmental temperature, humidity, soil pH, salinity, and other factors will affect the corrosion resistance of internal and external plastic coated carbon steel pipes, thereby affecting the thickness of the corrosion resistance layer. Generally speaking, the worse the environmental factors, the thicker the anti-corrosion layer.
2. Pipeline working parameters: The transportation pressure, flow rate, temperature, and other parameters of the pipeline will affect the degree of wear of carbon steel pipes with internal and external plastic coatings, thereby affecting the thickness of the anti-corrosion layer. Generally speaking, the higher the working parameters of the pipeline, the thicker the required anti-corrosion layer.
3. Pipeline laying method: The pipeline laying method (such as direct burial, overhead, water pipes, etc.) will affect the contact area between the carbon steel pipes with internal and external plastic coatings and the surrounding environment, thereby affecting the corrosion resistance layer. Generally speaking, the more complex the laying method, the thicker the anti-corrosion layer.
4. Building quality: The thickness of the anti-corrosion layer of carbon steel pipes coated with plastic both internally and externally greatly affects the quality of the building. If there is a lack of coating, thick coating, etc. during the construction process, the thickness of the anti-corrosion layer will not meet the requirements. Therefore, the construction quality should be strictly controlled during the construction process.
 
Fifth, application areas of epoxy powder coated steel pipes
1. Petrochemical industry: used for transporting various corrosive culture media, such as acid and alkali liquids, oil and gas, etc.
2. Power industry: used as power transmission and distribution lines in cable protection tubes.
3. Construction industry: used for water supply, drainage, ventilation, and other piping systems in buildings.
4. Industrial industry: used for transporting various chemicals, gases, liquids, and other media.
5. Urban heating system: used for transporting hot water and steam, with good thermal insulation performance.