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.
