Key Features & Uses of Different Expansion Joints Expansion Joints are significant parts of piping and ducting systems where thermal, vibration, pressure fluctuation, and mechanical movement occur. If these flexible components did not exist, piping systems would likely develop cracks, leaks, or structural failure. Some of the most common types of elastomeric expansion joints include flue duct expansion joints, flanged and flued expansion joints, and high-temperature bellows joints. https://theviralblogs.com/key-features-uses-of-different-expansion-joints/