Expansion joints are used widely in building services industry and other general industrial uses. Expansion joints are designed to accommodate vibration and thermal expansion to reduce transmission of noise on a vide range of systems. These include steam, condense, hot water, and heating and air conditioning systems. Other applications include power generation plant and offshore (gas and oil rigs).
SUS 304 stainless steel is the material most commonly used in the manufacture of bellows. This is a high quality material suitable for most service conditions. However, a choice of other materials-316L, 321-is available for special applications. Hardware attachments such as flanges, weld ends. liners and covers are generally made from materials compatible with the piping or vessel adjacent to the expansion joint.
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