Expansion joints are major components in numerous industrial plants. They are used as flexible transition elements in tubular and duct systems (e.g. flue gas ducts of power plants) to compensate thermal expansion, vibrations, movements or inaccurate mounting. Expansion joints are custom-made to suit any particular application and are available as single- or multi-layer expansion joints. The latter are designed for the high-temperature sector and can be used up to 1400 °C. Single-layer expansion joints of fluoropolymer or elastomer, e.g. Viton®*), are specifically suitable for aggressive operating conditions, such as those in flue gas desulphurization plants..
