The rubber joint mainly consists of rubber sphere, flange, fixed and load-bearing components, of which the rubber sphere is composed of rubber layer and cord fabric reinforcement layer. According to the sphere, there are three kinds of structures, such as concentric same diameter, concentric reducer and eccentric reducer. The sphere waveform includes single-wave sphere, double-wave sphere, elbow and no-wave straight pipe sphere. The connection methods are flange connection, threaded joint, throat casing, etc.
Compared with metal bellows expansion joints, rubber soft joints have better displacement capacity and flexibility, which are suitable for occasions with larger displacement and shorter installation length of expansion joints. Rubber flexible joints have good chemical corrosion resistance and are suitable for corrosive media such as sewage, seawater and pipes containing acid and alkali components. The rubber material has abrasion resistance and is also suitable for low temperature pipelines of granular and powdery media.
