Installation points of reducer rubber expansion joint

When installing the reducing rubber expansion joint, make it in its natural state and do not deform the product artificially during the installation process. This can avoid early damage to the product and weakening of the use effect. It is strictly forbidden to exceed the displacement limit during installation. If the installation is designed near the pump outlet or at the corner of the pipeline, when used in high pressure and high rise buildings, the pipeline has fixed bracket or fixed bracket, the force of fixed bracket and fixed bracket is greater than the axial force, otherwise, anti-drawing limit device should be installed.
Reducing rubber joint in the installation, shall make both ends of the sphere to enhance the ring (protruding part of the inner wire rope) all stuck into the flange groove to prevent the sphere and flange pull off when the pipe is under pressure. When the bolts are put on, the symmetrical bolts (six or four) are tightened first to ensure that the spheres are all in place in the flange.
When the reducer rubber joint is used in close proximity to the water (oil) pump outlet or under frequent start-stop conditions, in order to reduce the stretching and compression of the length of the rubber joint too large for the pump and pipeline, a limit device should be added at both ends of the flange. When the rubber joint is connected to the pipe flange, the bolt fillet should be extended to one end of the pipe flange to prevent the threads from squeezing or zapping the arching part of the rubber joint when it is expanded under pressure, and the bolts at each end need to be tightened symmetrically under pressure so that all the bolts are loosened and tightened in the same way.
When installing and using large diameter bendable rubber joints, to facilitate installation and reduce labor intensity, a short pipe of appropriate length should be made at one end of the flange, and after the rubber joint is connected to the short pipe and the other end of the pipe, the short pipe should be welded to the long pipe at the counterpart end.