What is the purpose of an expansion joint?
An expansion joint is used to allow for movement in difference structures and piping systems. This device contains the pressure of shock, contractions, vibrations or the medium running through it.HistoryBefore expansion joints were introduced, structures would easily crack under stress. Structures are more durable with the use of expansion joints.Pipe ExpansionIn systems that have high temperatures, expansion joints–or compensators–are a necessity to absorb movement, vibration, steam or exhaust gases.EarthquakesAccording to the Expansion Joint Manufacturers Association, expansions joints are beneficial during earthquakes because they absorb the vibrations and contractions of construction materials.Duct Air SystemsExpansion joints allow pieces of piping to be free of stress when thermal expansion occurs.
