Practical knowledge of expansion joints
Why use expansion joints? According to the physical characteristics of metals, most metals expand when the temperature increases and contract when the temperature decreases. In the pipeline system, this kind of physical phenomenon will lead to the change of the length of each part of the pipeline. However, the pipe is usually fixed on at least two joints. Any length change will cause thermal stress on the material and increase the force and moment on these joints. Therefore, it is necessary to make full use of the inherent flexibility of the pipeline to compensate for the expansion of the pipeline […]
