How to maintain rubber expansion joints with frequent replacement cycles?

As we all know, rubber joints are very widely used in industry. It consists of natural rubber, which will corrode after a long time, and rubber joint products contain volatile substances, which will shrink its life whether in a humid environment or in a dry environment. Therefore, how to maintain rubber joints and prolong their service life is of utmost importance. Today luoying takes you to understand its methods
    First of all, choose the right rubber joint media: such as bendable rubber joint normal applicable media is the temperature 0-60 ℃ ordinary water, special media such as: oil, acid and alkali, high temperature and other corrosive and hard texture of the case, should be selected corresponding to the special resistant material rubber joint, not blindly string with or general.
    Second, the installation of formal and accurate: when the pipeline displacement is greater than or equal to the compensation amount of the joint, the number of joints should be increased to parallel the displacement, and it is strictly forbidden to make the joint in flexural displacement and deviation in order to adjust the pipeline's super-difference, and not to exceed the limits (expansion, displacement, deflection, etc.).
    Third, in the installation at high altitude, it should be noted that for high-rise water supply or suspended water supply, the pipe should be fixed on the hanger, bracket or anchor frame, and the joint should not be allowed to bear the weight and axial force of the pipe itself, otherwise the joint should be equipped with anti-pull-off device.
    Fourth, when installing the rubber joint, the screw of the bolt should be extended to the outside of the joint, and the bolt of each flange end face should be tightened evenly repeatedly according to the method of diagonal pressurization to prevent pressure deviation. The fillet joint should be tightened evenly with standard wrenches, do not use force to make the live joint slip, slip rib and break, and should be checked regularly to avoid loosening to cause dislodgement or water seepage.
    Five, rubber joints should be re-pressurized and tightened before they are put into operation after the first time under pressure or after a long time out of use.
Sixth, avoid exposure to the sun, use or storage of rubber joints, should avoid high temperature, ozone oil and acid and alkali environment. The pipeline used outdoors or facing the sun and wind should be built with a sunshade frame, and sun screen, rain and wind are strictly prohibited. Painting and winding insulation materials are strictly prohibited on the surface of the joints. Because of the aging problem of rubber products, should be timely inspection and replacement.