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Anticorrosion and derusting in the maintenance of expansion joint

    In the process of pipeline construction, what is considered is not the quality of the pipeline, but the compensation for the displacement generated during the use of the pipeline. During the normal operation of the pipeline, due to the influence of thermal stress and mechanical vibration, the axial expansion displacement of the pipeline will be caused. If it can not be solved in time, the pipeline will be distorted and deformed. If the situation is serious, it will cause the pipeline to be damaged The operation of the.

In order to avoid the occurrence of this situation, the Telescopic device Through the relative displacement between the expansion pipe and the body, the expansion device installed on the pipeline can play a good axial displacement compensation function. The installation of the expansion joint is simple and easy to operate, so is the maintenance. The installation of the expansion device near the pump valve can facilitate the disassembly and assembly of the pump valve. In the later maintenance process, it is only necessary to remove the flange bolt of the expansion device to carry out the maintenance of the pipe section near the valve, which greatly reduces the difficulty of the pipeline construction and the installation and use in the later stage.

Although the performance of the expansion device is good, it still needs regular maintenance at ordinary times, so as to extend the service life of the expansion device and the long-term and stable operation of the pipeline. In the maintenance of the expansion device, anti-corrosion and rust removal is also an important aspect.

So in the maintenance of the expansion device, how to operate specifically?

In order to prevent corrosion on the outer surface of the extender, the rate of oxidation is generally reduced. Derusting work refers to that the paint layer on the inner wall of the expansion joint installed on the pipeline line will fall off due to long-term wear and tear, causing direct contact between metal and medium, resulting in rust on the inner surface. In this case, rust removal measures should be taken. Generally, steel ball is used to clean the rusted surface, including the rusted area and the paint layer near the rust, Until the metal luster is exposed, and then spray paint again. The paint layer should be evenly sprayed to avoid sagging.

Shanghai Huanjing is a large-scale manufacturer specializing in the production of various types of extenders. With more than 20 years of experience, Shanghai Huanjing has been at the top level in the field of expansion. We have incomparable advantages in terms of raw material purchase, production technology and equipment. Each process of the product has been strictly inspected and tested, and the product quality is worthy of your trust.

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