Anti-seepage measures of pe water supply pipe

2024-01-29

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Withpe water supply pipeWith the extension of service life, due to a variety of damage factors, the nozzle will crack and even the pipe or auxiliary structure will be destroyed, and the penetration will be greatly increased. The infiltration of groundwater into the PE water supply pipeline will increase the transportation, lifting and treatment of sewage, resulting in higher project investment and operating costs. Therefore, under economically feasible conditions, the groundwater infiltration of pe water supply pipe should be reduced as much as possible.

When choosing pe water supply pipe, all pipes and fittings need to meet the design drawings and specified product material requirements. It is required that the ex-factory product certificate and relevant information of the pipe are complete and can be used only after passing the inspection. Before and after transportation to the site, the pipeline shall be inspected and accepted one by one according to the standards. Check the inner surface, outer surface and joints of pipes and fittings. The quality shall meet the requirements and there shall be no signs of damage.

The appearance of the rubber ring should be free of bubbles, cracks, wrinkles and deformation. Avoid contact with aromatic solvents during storage. Pipes and fittings found to have quality problems should be returned. At present, both reinforced concrete pipes and plastic pipes can adopt flexible interfaces. In order to reduce the leakage of the flexible interface pipe, the selection of the interface rubber ring, the application of the rubber strip and the improvement of the anti-seepage sealing quality of the rubber ring can be considered.

There are two kinds of rubber rings commonly used in pe water supply pipes: rolling rubber rings and sliding rubber rings. Rolling rubber rings are commonly used O-shaped cross-section rubber rings. However, it is easy to roll and twist at the socket end during installation, which affects the sealing performance of the interface. In general, sliding rubber rings are better than rolling rubber rings.

The rubber strip will expand in volume when exposed to water. Compared with ordinary rubber ring, it can contact more irregular surfaces and gaps at the connection of concrete pipes, so it has strong anti-leakage ability. But the price is more than twice that of ordinary rubber rings. In addition, compared with the conventional rubber water stop belt, there is a certain gap in the properties of aging resistance, tensile strength and embrittlement temperature when heated, so as to prevent the pipeline from being damaged by the pipeline foundation.