Expansion joints are manufactured using various materials such as rubber, metal, PTFE, and fabric depending on the application requirements. They are designed to withstand high pressure, temperature variations, and harsh environmental conditions. Rubber expansion joints are commonly used for vibration and noise reduction, while metallic expansion joints are ideal for high-temperature and high-pressure applications. One of the key advantages of expansion joints is their ability to maintain pipeline alignment while preventing cracks, leaks, and structural damage. They also help reduce maintenance costs and downtime by protecting equipment from excessive stress and vibration.