Electrofusion sealed carat tube, effectively solve the leakage of pipeline interface

Core Causes of Traditional Pipeline Interface Leakage

In the operation of municipal drainage and sewage pipe networks, interface leakage is a high-frequency quality problem. Traditional carat pipes are mostly sealed with rubber rings. Affected by factors such as geological settlement, temperature thermal expansion and contraction, and construction alignment deviation, rubber rings are prone to aging and deviation, fitting gaps, and then causing sewage leakage, which will not only pollute the surrounding soil and groundwater, but also the cost of later excavation and maintenance far exceeds the initial construction investment. It is a long-term control difficulty in pipe network projects.

Advantages of anti-seepage structure of fused sealed carat tubes

The electric fusion sealed carat tube is pre-embedded with special resistance wire at the interface. After the socket and docking are completed, the polyethylene material at the interface is uniformly melted through special equipment. The socket and the socket are completely bonded into an integrated structure, and there is no splicing gap. The performance of this sealing method is not affected by geological deformation and temperature changes. The sealing grade can meet the long-term zero leakage requirements. The service life of the interface is consistent with the pipe itself, which is much higher than the durability of traditional rubber ring seals.

Key points of anti-seepage quality control at the construction end

The construction operation of electrofusion sealed carat pipes has clear specification requirements: before construction, it is necessary to thoroughly clean the sediment and stains on the surface of the socket to ensure that the butt surface is smooth and free of debris; when docking, it is necessary to ensure that the pipes are coaxially aligned to avoid deflection and dislocation; the welding process requires strict control of voltage and power-on time parameters, and the pipes must not be moved during the cooling stage; after the construction is completed, the anti-seepage effect can be verified by the closed water test, and the overall qualified rate is more than 30% higher than that of the traditional sealing process, especially suitable for construction scenarios with complex geological conditions such as collapsible loess and soft soil foundation.

Application value of multi-scene adaptation

At present, the electrofusion sealed carat pipe has been widely used in rain and sewage diversion pipe network, sewage treatment plant discharge pipe network, underground comprehensive pipe gallery water supply and drainage system, farmland water conservancy and other engineering scenarios. Long-term operation data show that its interface leakage rate is less than 0.1%, and the later operation and maintenance cost is reduced by about 60% compared with traditional pipelines. It can effectively reduce the investment cost of the whole life cycle of the pipe network. It is a suitable pipe for pipe network projects with high anti-seepage requirements.