1, Product Information: ZHWs expansion bellows Series EBF521 can withstand extreme variations in temperature ranging from very low to high temperatures i.e. from Cryogenic up to 600 °C. Stainless steel bellows are diffusion tight, have an excellent chemical resistance as well as high physical strength. On top of it, stainless steel bellows have very good corrosion characteristics. United Flexible bellows and expansion joints are generally produced and assembled in sizes from nominal 40 mm (1-1/2�) up to nominal 2000 mm (0�). 2, Product Applications: Decreasing vibration of rotating parts, the joints can be used in pressure system, pump, motor, machine equipment, compressors, industrial pipeline construction, gas and water transportation pipeline. 3, Product Features: Reasonable structure, good elasticity, large range of compensation pipeline and little counterforce to the brackets of pipeline. Shock absorption and noise decrease, heat and dust insulation, environmental protection and simple structure bracket. The displacement can be deflected to prevent damagment caused by subsidence of connected brackets and equipment base. It can adapt itself to the centrifugal difference of pipeline installation to provide convenience to installation and maintenance. Good resistance to milling, heat, aging and corrosiveness and long service life. Little resistance and little weight. Each performance is better than the compensation device of other materials. The temperature range of media is wide:-40--300°c.