Hdpe drainage pipe installation pay attention to matters?



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With the continuous progress of science and technology, all walks of life have also been greatly developed, abouthdpe drain pipeIts development prospects are also very good, so the demand is increasing, the market has also increased a lot of manufacturers, and we as a manufacturer, here is also very necessary to tell you about the hdpe drainage pipe installation matters needing attention.

Before we use this hdpe drainage pipe, there are many problems with everyone, so if you want to use it better, you must understand some of its knowledge points. First of all, you have to be clear that the hdpe drain pipe has good impact resistance, even if there is a water hammer of 2.5 times the nominal pressure, it will not cause any damage to the pipeline. It is suggested that during construction, when the buried depth is lower than the bottom surface of the building foundation, in order to avoid accidents, the pipeline should not be set within the pressure range of the foundation diffusion angle under the building foundation. In addition, in areas where the groundwater level is higher than the elevation of the trench bottom, the groundwater level will usually drop to 0.3 m-0.5m below the nearest point of the trench bottom. In addition, care should be taken to strictly control the depth of excavation during trench excavation. In case of over-excavation and disturbance, natural graded sandstone with a particle size of 0.1 m-0.5m shall be used instead to make it flat and compact. The foundation is based on crushed stone, not concrete, and the thickness is 0.05 m-20m, depending on the geological conditions. It is also important that the pipeline laying process should be carried out manually or using a crane. When using a crane to lay the pipeline, care should be taken to tie the two ends of the pipeline with non-metallic ropes at 1/4 of the nozzle. Therefore, the backfilling of the hdpe drainage pipe has strict requirements for backfilling. In backfilling, some backfills use specific specifications of medium (coarse) sand (locally known as asbestos sand). The hard corners of gravel (soil) are easy to damage the PE pipe, and backfilling is not easy to compact. Asbestos sand has the function of automatic compaction under the best water content, and can meet the compaction requirements by adding small compaction machines.

The 0.7m part above the top of hdpe drainage pipe shall be backfilled mechanically. Backfilling below the top of the pipe shall be carried out from both sides of the pipe at the same time. Otherwise, it is easy to cause uneven compression of the HDPE pipe, which will naturally cause the HDPE pipe to deform. Other backfilling shall be in accordance with the specification. The pipeline is connected to the inspection well. In the original construction scheme, the mortar was painted in a "trumpet shape", the mortar was filled around, and then the bricks were built. However, the closed water test cannot meet the requirements. In addition, a certain depth or reserved space can be excavated at the interface to facilitate the welding of hdpe drainage pipes. After the connection is completed, it should be compacted here. This is the weak part of the pipeline. Therefore, the heating time and current intensity should be adjusted and controlled according to the operating procedures, otherwise the sealing of the pipeline interface will be poor. Of course, in the backfilling process, the debris in the backfilling material should be removed, especially the hard objects containing large particles, to prevent damage to the HDPE winding pipe. When laying the flexible interface dotted line, it is recommended that the relative angle of each socket of HDPE wound pipe is not more than 2 °. The compactness of the product pipe area shall meet the design requirements, be compacted in layers, and be compacted symmetrically along the center line of hdpe drainage pipe to reduce pipe deformation. If consumers want to buy this type of product, remember to shop around. This is an information age, we do not need to go to the market to work hard, you can directly search the Internet related manufacturers of Han Rong parts.

After the introduction of the above content, we also have a further understanding of the installation of hdpe drainage pipe. When I see him again in the future, I will not feel strange, and there will be no frequent problems in the process of using it. Well, that's all for today's content. I believe it will bring more wonderful knowledge points.