High sealing performance

The water supply pipe network is a pressure-bearing pipe network, and only good sealing of the pipe is the basic guarantee for continuous water supply. Fire-fighting steel-plastic composite pipe

Good water quality

From the water plant to the user, the tap water has to go through a long pipeline, which often takes several hours or even days. The pipe network is actually a large reactor. The unfinished chemical reaction of the factory water will continue in the pipe network, and the chlorinated water will come into contact with the pipe wall to produce new reactions. These reactions are biological, Sensory and physicochemical. Therefore, the inner wall of the pipeline is required to have corrosion resistance and no harmful substances will be precipitated into the water.

When arranging pipes, use a horizontal ruler to correct the slope of the pipe, and check the elevation of the bottom of the pipe with an elevation model for every two pipes in a row. Each section of the pipe should be firmly cushioned and shall not be shaken after being arranged. The piping sequence is from downstream to upstream, with the socket downward and the socket upward.

The variety of drainage pipes is no longer a single flat-mouth pipe. A wide range of products such as tongue-and-groove pipes, socket pipes and steel socket electric pipes with flexible joints have been widely used in the drainage, sewage and other aspects of urban and rural construction in my country. In power cables and other engineering projects, the use of higher-tech special-shaped pipes, base pipes, power trench pipes and anti-corrosion pipes has become more and more common. The launch of a special nationally planned urban sewage project plan, requiring the laying of urban pipe corridors, will surely promote a new round of development in the production and application of drainage pipes.

In developed countries, the common gap has existed for more than a century, and while the system is becoming more and more perfect, its scale is also showing a tendency to become larger and larger. As early as 1833, in order to solve the problem of laying underground pipelines and improve environmental quality, Paris began to build common trenches for underground pipelines. So far, Paris has built a common trench network with a total length of about 100 kilometers and a relatively complete system. Since then, European cities such as London in the United Kingdom and Hamburg in Germany have also built underground common trenches one after another. In 1926, Japan began to construct an underground common ditch. By 1992, Japan already had a common ditch of approximately 310 kilometers in length, and it was in the process of continuous growth.