What are the advantages of double spherical rubber expansion joint?
Double sphere rubber expansion joint is actually distinguished from single sphere rubber expansion joint in terms of appearance and shape, its installation length is longer than that of single sphere rubber expansion joint, which solves the shortage of the installation length of rubber joints, when you need to install longer rubber joints can use double sphere rubber expansion joint, but double sphere rubber expansion joint in the installation of super displacement installation is strictly prohibited. When installing double spherical rubber expansion joint on flat ground, overhanging or vertically, 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 pulling off under pressure when working.
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 sphere rubber expansion joint installation bolts should be symmetrically and gradually tightened to prevent local leakage, installation should be far away from heat sources, the use of media that do not meet the requirements of this product is strictly prohibited.
Generally we use more single sphere rubber expansion joint, but the pipeline in the design will also use double sphere rubber expansion joint, double sphere rubber soft expansion joint toughness is much stronger than the general rubber soft expansion joint, double sphere rubber soft connection key to 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 effect is reasonable to clear the pump, valve and pipeline itself deflection physical damage. This is the advantage of the double sphere rubber expansion joint, but also its disadvantage, because it is a double sphere, 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 sphere 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 sphere rubber expansion joint can play both its strong elasticity, good shock absorption effect, and can be used in high pressure environment.
Its double sphere rubber expansion joint is mainly wear-resistant, shock-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.
