Compared with other pipes, large-diameter plastic-coated steel pipes have smooth walls, good drainage performance, small fluid resistance, and no scaling, which can greatly reduce losses. At the same time, the linear expansion coefficient of the large-diameter plastic-coated pipe is very small, which makes it very beneficial as the main water delivery pipe, and greatly overcomes the defects of the large linear expansion coefficient of other common pipes. Large-diameter plastic-coated steel pipes are cost-effective products upgraded from traditional seamless pipes and galvanized pipes. It has comprehensive characteristics, that is, it has the advantages of high strength, high elongation, good low temperature brittleness, and small expansion coefficient of steel pipes, and has the advantages of corrosion resistance, wear resistance, and small fluid resistance of plastic pipes. It belongs to a new type of water supply and drainage, anti-corrosion green large-diameter pipe, which is more and more widely used in various industries.
Finished product protection of large-diameter plastic-coated steel pipes
1. Finished product protection during storage and transportation
(1) When handling pipes, they should be handled with care to avoid oil pollution, and violent impact and contact with sharp objects are strictly prohibited.
(2) Pipes should be stored in well-ventilated warehouses or simple sheds, and should not be stored in the open air to prevent direct sunlight, and the distance from heat sources should not be less than 1m.
(3) The pipes should be stacked horizontally on a flat site to avoid bending of the pipes, and the stacking height should not exceed 1.5m.
2. Finished product protection during construction of large-diameter drainage plastic-coated steel pipes
(1) During the construction process, all reserved openings should be blocked in time.
(2) Protective measures should be taken for the pipeline after installation, pedaling and hanging heavy objects are strictly prohibited. The distance between open flame and temporary heat source shall not be less than 1m from the installed pipeline.
Safety precautions for large-diameter drainage plastic-coated steel pipes
1. When using the threading machine, check the power supply voltage, abide by the safety operation regulations of electrical tools, pay attention to moisture-proof, and keep the machine clean.
2. There should be no open flames at the operation site, and no flammable liquids should be stored.
3. When constructing in trenches and wet working surfaces, follow the safety operation regulations for electrical tools to ensure that the three-level leakage protection is effective, the power cord of the threading machine is safe and reliable, and the mobile distribution box must not be placed in the trench or on the wet working surface.
Quality standard for large-diameter drainage plastic-coated steel pipes
1. The hydraulic pressure test of the pipeline meets the requirements.
2. Before the system is put into use, conduct a water test and make a record.
3. The system should be rinsed and disinfected before being delivered for use, and it can be delivered for use only after passing the inspection by the health supervision department.
4. The installation of pipe brackets, hangers or pipe clamps shall comply with the installation regulations.
Finished product protection of large-diameter plastic-coated steel pipes
1. Finished product protection during storage and transportation
(1) When handling pipes, they should be handled with care to avoid oil pollution, and violent impact and contact with sharp objects are strictly prohibited.
(2) Pipes should be stored in well-ventilated warehouses or simple sheds, and should not be stored in the open air to prevent direct sunlight, and the distance from heat sources should not be less than 1m.
(3) The pipes should be stacked horizontally on a flat site to avoid bending of the pipes, and the stacking height should not exceed 1.5m.
2. Finished product protection during construction of large-diameter drainage plastic-coated steel pipes
(1) During the construction process, all reserved openings should be blocked in time.
(2) Protective measures should be taken for the pipeline after installation, pedaling and hanging heavy objects are strictly prohibited. The distance between open flame and temporary heat source shall not be less than 1m from the installed pipeline.
Safety precautions for large-diameter drainage plastic-coated steel pipes
1. When using the threading machine, check the power supply voltage, abide by the safety operation regulations of electrical tools, pay attention to moisture-proof, and keep the machine clean.
2. There should be no open flames at the operation site, and no flammable liquids should be stored.
3. When constructing in trenches and wet working surfaces, follow the safety operation regulations for electrical tools to ensure that the three-level leakage protection is effective, the power cord of the threading machine is safe and reliable, and the mobile distribution box must not be placed in the trench or on the wet working surface.
Quality standard for large-diameter drainage plastic-coated steel pipes
1. The hydraulic pressure test of the pipeline meets the requirements.
2. Before the system is put into use, conduct a water test and make a record.
3. The system should be rinsed and disinfected before being delivered for use, and it can be delivered for use only after passing the inspection by the health supervision department.
4. The installation of pipe brackets, hangers or pipe clamps shall comply with the installation regulations.
