What are the abnormal behaviors that cause damage to the rubber expansion joint?

Check whether the bolts of the flange piece of the rubber expansion joint are tightened, if they are not tightened, it will form a rubber joint to leak as well as the wear and tear of the sphere is aggravated.
When the rubber expansion joint is installed, the pipeline displacement is greater than or equal to the large compensation amount of the joint, the number of joints should be increased to parallel displacement, it is strictly forbidden to make the joint in the state of deflection displacement and deviation of the limit in order to adjust the super-difference of the pipeline, and not to exceed the limit.
Long working hours and often in the state of displacement and expansion will lead to cracks in the sphere of the rubber joint, so that the sphere ruptures and the rubber joint is damaged.
Special media such as: oil, acid and alkali, high temperature and other corrosive and hard texture, should be selected to use the corresponding special resistant material rubber joints, not blindly string or general use.
Rubber spheres should avoid exposure to the sun as much as possible, and rubber joints should be used or stored to avoid high temperature, ozone oil and acid-alkali environment. If the pipe is used outdoors or facing the sun and the wind, a shade frame should be built, and sun screen, rain and wind are strictly prohibited, otherwise the rubber of the rubber joint will be aged. Painting and winding insulation materials are strictly prohibited on the surface of joints.
Deformation of water blister; some rubber joints are used in the environment of long-time immersion in the water medium, which will form some parts of the sphere are deformed by the blister, if you find that the rubber soft joint sphere should be soaked deformation or rubber layer separation, you need to quickly replace the sphere.