Introduction to expansion joints

Introduction to expansion joints
The expansion joint has various special functions such as high resistance, high sealing, impact and abrasion resistance and anti-corrosion, etc. It can compensate and absorb pipeline axial, lateral and angular thermal deformation; absorb equipment oscillation and reduce the impact of equipment oscillation on pipeline; absorb the deformation of pipeline caused by earthquake and ground subsidence.
 
The expansion joint is made of high strength and good thermal stability polyester cloth compounded and bound by high pressure and high temperature special process. The high density in the internal structure can accept large pressure and flexibility to change the appearance shape, which is especially suitable for the pipeline environment with messy geological conditions. After using the resistant sliding, handling and deformation of expansion joints, expansion joints can very effectively eliminate the expansion, large displacement under pressure and internal damage of pumps, valves and pipelines themselves. Since expansion joints are classified as materials that do not conduct, they can play an excellent role in reducing the transmission of trembling noise. When planning the interior of the expansion joint, the original rubber material is used, so the inner wall of the expansion joint is smooth and flawless, and the technical personnel have checked that the expansion joint has no effect on the flow rate and flow of the material, and it never rusts, so it can eradicate the repair cost during the operation period. Other features of expansion joints in the pipeline are the control of elasticity amount. In the pipeline, after being hit by huge pressure, the elastic amount will be carried out automatically, and after exceeding the set elastic amount, the expansion joint will automatically bind the elastic amount and no longer carry out elasticity. The sealing of the expansion joint is very good, and the whole is mostly made of metal material, which has flexibility and durability. The expansion joint is not robust in compensating the pipeline to avoid the equipment interface. Expansion joints not only have the role of compensating pipeline, but also can extend the life of the pipeline.