The general replacement life of rubber joints should be in two years, if it is used in chemical pipelines or over acid and alkaline. Corrosive media should be replaced in a shorter period so as to avoid more losses. There are many kinds of rubber joint products, which can be made of different raw materials according to the medium, not special media, generally synthetic rubber, rubber products are made of natural rubber and other synthetic rubber in proportion to the formula, which will oxidize and corrode over time, rubber joint products contain volatile substances, both in the wet and dry, will shrink its life. So generally rubber products should be packed in plastic bags after use, not in the air for a long time, which is also an effective way to extend the life of rubber joints.
