As a high-performance pipe, internal and external plastic-coated composite steel pipe is widely used in urban water supply, gas, petrochemical industry and other fields. However, in order to ensure its good connection sealing, it is necessary to do a good job in the manufacturing, installation and maintenance of pipes.
In order to improve the service life of fire-fighting internal and external plastic-coated pipes, it is necessary to work material selection. At present, there are a variety of pipe products of different materials on the market, such as steel, plastics, composite materials, etc. According to the specific use environment and requirements, the compressive resistance, corrosion resistance, wear resistance and other properties of the pipeline should be comprehensively considered in the selection of fire-fighting plastic-coated steel pipes. Pipe materials can effectively improve the service life of pipes.
In the manufacturing process of internal and external plastic-coated composite steel pipes, it is necessary to pay attention to the selection of high-quality materials and ensure that the pipes have undergone strict quality testing. Only in this way can we ensure that the internal and external coating quality of the pipe is uniform, and there will be no problems such as coating peeling off and bubbles, so as to ensure good connection sealing.
In order to improve the service life of fire-fighting internal and external plastic-coated pipes, it is necessary to ensure the accuracy and precision of operation during construction and installation. The installation process of the pipeline should comply with the standard specifications to ensure that each link is strictly controlled by the process to avoid defects and defects. In the case of great influence of environmental temperature, humidity and other factors, corresponding preventive measures are taken to ensure the stability and reliability of the pipeline.
In the installation process of internal and external plastic-coated composite steel pipes, it is necessary to correctly select the connection method, the common ones are hot melt connection, mechanical connection and electric fusion connection. Hot melt joining is a commonly used joining method in which the two ends of the pipe are heated to form a complete connection. Mechanical connection is to connect the pipes together through threads, flanges, etc., and connect them through fasteners. The electrofusion connection uses the electrofusion joint to heat the pipe to a molten state, and then connects the adjacent ends through external force.
Regular maintenance and maintenance of fire-fighting internal and external plastic-coated pipelines is also an important means to improve their service life. For the running pipelines, regular inspections and repairs should be carried out to find and repair possible problems in time to prevent accidents. For fire-fighting plastic-coated steel pipes that have been idle for a long time, regular cleaning and maintenance should be carried out to avoid corrosion and blockage of the inner wall of the pipeline due to sediment.