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Some key points of pe water supply pipe construction
PE water supply pipe has corrosion resistance, non-toxic, smooth inner wall resistance, long anti-aging life (50 years), which makes it light weight, low installation labor intensity, low construction cost, good seismic performance, and good material flexibility. Here to introduce some of the main points of PE water supply pipe construction? If you want to know these questions, then come here to understand it.
PE water supply pipe has corrosion resistance, non-toxic, smooth inner wall resistance, long anti-aging life (50 years), which makes it light weight, low installation labor intensity, low construction cost, good seismic performance, and good material flexibility. Below for everyone to introducepe water supply pipeSome key points of construction? If you want to know about these problems, come here and learn about them.
PE water supply pipe adopts straight line excavation, and the excavation width of groove bottom is DN0.30m. When encountering underground pipelines, the width of the groove bottom at the interface should be appropriately increased. In order to facilitate the installation and docking, the width of the pipe bottom shall not be less than DN0.50m. In addition, when the pipe trench is excavated manually, the bottom of the trench shall be flat and dense without sharp objects. The bottom of the trench may be undulating, but the pipe support is stable. Backfilling and compaction shall be carried out during over excavation. In fact, the PE water supply pipe mainly adopts hot melt connection and electric fusion connection. Hot melt connection is divided into hot melt socket connection and hot melt butt connection. During construction, the pipe or pipe fittings shall be placed straight and placed on the docking machine, leaving a cutting allowance of 10-20mm. Select a suitable slide clamp for the pipe and fittings to be welded, clamp the pipe, and prepare it for cutting. and,pe water supply pipeDuring construction, the end faces of welded pipe sections and pipe fittings are cut with impurities and oxide layers to ensure that the two pairs of end faces are smooth, clean and free of impurities. The end faces of the two welded pipe sections should be completely centered, and the deviation should be as small as possible, and the deviation should not exceed 10% of the wall thickness. Otherwise, the docking quality will be affected. Generally, the butt joint temperature is 210~230 ℃, the heating time of the heating plate is different in winter and summer, and the melting length at both ends is 1~2mm. Products have been widely used in environmental protection, papermaking, metallurgy, electric power, mining, chemical fiber, petrochemical, sulfuric acid, chlor-alkali, pharmaceutical, salinization, landfill and sewage treatment and other fields.
PE water supply pipe to remove the heating plate, so that the hot melt end surface fast bonding pressure, to ensure the quality of docking. The shorter the switching period, the better. In particular, the welding process should always be under the melting pressure, the width should be controlled between 2~4mm. In this way, the docking pressure remains constant and the interface slowly cools. So it said that after cooling, loosen the slips, remove the wiring machine and prepare for the next interface connection. When buried under the roadway, it should not be less than 0.80m. Especially when buried under the sidewalk, it should not be less than 0.60m. When the crossing roadway does not reach the design depth, measures should be taken to lay steel casing for protection. Especially when the pipe groove is turning, the turning angle should not be too large, and the bending radius should meet the following requirements. Manual excavationpe water supply pipeFor pipe grooves, the bottom of the groove is required to be flat, dense and free of sharp objects. The bottom of the trench can have undulations, but it can also support the pipeline smoothly. In case of over-excavation, backfill and compact. Place the pe water supply pipe or pipe fitting flat on the docking machine, leaving a cutting allowance of 10-20mm. More importantly, what needs to be done is to select the appropriate card sleeve according to the welded pipe and pipe fittings, clamp the pipe, and prepare for cutting. In addition, it is necessary to cut the impurities and oxide layer on the welded pipe section and pipe end surface to ensure that the two butt end surfaces are smooth, clean and free of impurities. The end faces of the two sections of welded pipes shall be completely centered, and the smaller the misalignment, the better, and the misalignment shall not exceed 10% of the wall thickness. Otherwise, it will affect the docking quality.
The content of the above article is some key points about pe water supply pipe construction that we have told for your friends. If you don't understand it, then come and have a look. That's all about this knowledge. I hope I can help you.