Rubber expansion joints are rubber shock absorbers, rubber soft connection, the professional term is called curvature rubber joints, its role is connected to the middle of the pipe, in the pipeline expansion or compression can effectively protect the normal nature of the pipe. Rubber expansion joints are generally composed of smooth waveform compensation elements and metal flanges with rubber flanges at both ends. Metal flanges often use loose sleeve structure. The surface of the waveform compensation element is rubber, and the inner layer is reinforced by a layer of strong fibers or steel bands (filaments). Reinforcement of fibers or steel bands (filaments) and other reinforcement of the interlayer has been extended to both ends of the image rubber flange, the flange has a hard steel wire skeleton. Like glue expansion joints have a large displacement compensation capacity, can be axial, transverse and angular displacement compensation, has to reduce noise, reduce vibration and a certain degree of anti-corrosion ability.
Its high pressure resistance, good elasticity, large displacement, good vibration and noise reduction effect, easy installation and other characteristics, can be widely used in water supply and drainage, HVAC, fire, compressor, paper, pharmaceutical, ship, water pump, fan and other piping systems.
