Product knowledge

Product knowledge

What are the advantages of double-arch rubber joints?

Aug-22-18
Generally we use more single-arch rubber expansion joints, but the pipeline will also be used in the design of double-arch rubber expansion joints, double-arch rubber soft expansion joints are much stronger than the general rubber soft expansion joints, double-arch rubber soft connection key use the distinctive characteristics of rubber, such as high elasticity, high sealing, material resistance and radiation resistance, the choice of high strength, cold and heat stability of polyester fabric curtain and rubber The surface layer is chemically cross-linked by high pressure and high temperature compression mold, with high internal denseness and excellent elastic deformation effect. The role of reasonable removal of the pump, valve and pipeline itself offset physical damage. This is the advantage of the double-arch rubber expansion joint, but also its disadvantage, because it is double-arch, so the length of the sphere is twice as long as the general sphere, so that the pipeline in use, the pressure is too large plus the vibration of the pipeline will lead to rubber joint sphere tear, which is also the disadvantage of the double-arch rubber expansion joint in the process of use, generally to deal with this situation, we will be in the factory before the product according to the size of the pipeline pressure and sphere Caliber size to the product plus iron ring, and then the middle of the ball belly, so that it can avoid the ball rupture caused by excessive pressure of the ball. It can make the double-arch rubber expansion joint can play both its strong elasticity, good shock absorption effect, and can be used in high pressure environment.

The double-arch rubber expansion joint is actually distinguished from the single-sphere rubber expansion joint by its appearance and shape, and its installation length is longer than that of the single-sphere rubber expansion joint, which solves the shortage of the installation length of the rubber joint, and the double-arch rubber expansion joint can be used when a longer rubber joint needs to be installed, but the double-arch rubber expansion joint is strictly forbidden to be installed with super displacement during installation. Flat, overhanging, vertical installation of double-arch rubber expansion joint, the actual working axial displacement pressure of the rubber expansion joint is less than the support force of the pipeline, otherwise it should be installed with anti-pull-off device to prevent the work from being pulled off under pressure.

The pipe has fixed support or fixed bracket, and the force of the fixed bracket is greater than the axial force. Vertical installation and overhead installation of both ends of the product need to install the corresponding fixed bracket and force bracket to prevent the work under pressure to pull off. Double-arch rubber expansion joint installation bolts should be tightened symmetrically and gradually to prevent local leakage, installation should be far from heat sources, and the use of media that do not meet the requirements of this product is strictly prohibited.

Its double ball rubber expansion joint is mainly wear-resistant, impact-resistant protection of its equipment and related pipeline equipment, can extend the service life of its equipment and so on. With the innovative development of social science and technology, double ball rubber expansion joint as an emerging technology synthetic materials have been more and more industries have been selected, from the use of the scope and use is very wide. In industrial and mining enterprises, transportation sector and construction industry, such as housing ground, this material plays a special role.