Expansion joints are used in piping systems to absorb thermal expansion or terminal movement.
Expansion joints are also designed for other criteria, such as noise absorption, anti-vibration, earthquake movement, and building settlement. Pipe expansion joints are also known as "compensators", as they compensate for the thermal movement.
The type of Expansion joint are Metallic, Rubber & Teflon Bellows.
The expansion joints are used in various facilities, such as petrochemical complexes, electric power plants, steel plants and chemical plants. Combinations of expansion joints can be used as earthquake-proof piping for seismic isolated structures.