1, Product Information: Rubber expansion joints are flexible connectors fabricated of nature rubber or synthetic elastomers, steel ring and fabrics, and when necessary, metallic reinforcements provide stress relief in piping systems due to thermal and mechanical vibration and/or movements. ZHW® Rubber Expansion Joints provide relief from stresses caused by thermal expansion and contraction in pipelines. Movement is always experienced in piping systems due to varying ambient temperatures, differences in temperature of materials handled, and differences in composition. Expansion joints absorb this movement and eliminate the danger of buckling or pulling apart with the high replacement costs that would result. 2, Product Advantages: Length of product customization Tough quality and Widely Service Absorption of Vibration, Noise and Shock Wide Range of Flange Materials Available Reduced Turbulence or Material Entrapment Compensation for Misalignment 3, Product Applications: It is extremely suitable for places where there are complex geologic conditions, large sedimentation range and pipes are easy to be damaged due to frequent alternation between heat and coldness in pipes. The elastic slide transfer and deformation of rubber and the heat dispersion of mechanical force may well prevent the physical damages from the displacement of pumps, valves and pipes. As a poor conductor, it is a harmless to reduce the vibration and noise transmission. The product is designed with smooth inner walls, after testing, it is proved to have no any influence on the flow speed and flux of medium, and keeps stainless for ever, accordingly it will be free of maintenance in operation.