High-quality carat pipes help upgrade the urban underground pipe network

[Carat tube performance adapts to core requirements for pipeline network upgrade]

The current urban underground pipe network upgrade focuses on solving the traditional pipeline leakage, easy corrosion, poor settlement resistance and other pain points. Carat pipes, as high-density polyethylene wound structural wall plastic pipes, have a wide range of ring stiffness and can adapt to the construction requirements of different covering depths. The overall impact resistance and acid and alkali corrosion resistance are outstanding. Compared with traditional cement pipes and clay pipes, the weight is only 1/5 of the same specification, the transportation and installation difficulty is lower, the interface sealing is strong, and the leakage rate is much lower than that of traditional pipes. It meets the pipe network construction requirements of multiple scenarios such as rain and sewage diversion and sewage drainage.

[Core precautions for carat tube selection]

The selection of carat pipes needs to be determined in combination with the actual working conditions of the project. First, the products corresponding to the ring stiffness should be selected according to the load-bearing grade of the laying area. The pipe network under the main road and heavy-duty area needs to choose the model with higher ring stiffness. The non-passing area and the internal pipe network of the community can match the products of the corresponding grade. Secondly, the suitable corrosion-resistant grade products should be selected according to the chemical composition of the conveying medium to ensure long-term use stability. At the same time, the matching degree between the product interface specifications and the construction accessories should be checked to avoid connection loopholes.

[Key points of carat tube construction specifications]

Before the construction of the carat pipe, it is necessary to clean up the sharp stones and sundries in the pipe trench to avoid the hidden danger of leakage caused by scratching the pipe wall; the electric fusion connection process is preferred for the interface, and the welding temperature and time are strictly controlled to ensure that the joints are welded evenly without gaps; after the construction is completed, the closed water test needs to be carried out according to the specifications, and then the backfill operation is carried out after confirming that there is no leakage. The backfill method needs to be layered and tamped to avoid the deformation of the pipe wall caused by excessive local pressure.

[Outstanding long-term application value of carat tubes]

The service life of high-quality carat pipes can reach more than 50 years under normal working conditions, the later operation and maintenance costs are much lower than traditional pipelines, and the materials can be recycled and reused, which meets the requirements of green municipal construction. It has been widely used in pipe network transformation and rain and sewage diversion projects in many places in China, effectively reducing the risk of urban waterlogging and soil leakage pollution, and also reserving sufficient space for the subsequent intelligent transformation of underground pipe networks.