Air release valves are devices used in various fluid systems to remove trapped air. When air accumulates in pipelines, it can cause pressure fluctuations and reduce the efficiency of the system. These valves automatically open to release air when pressure builds up, ensuring smooth fluid flow. Typically found in water supply systems, sewage systems, and industrial processes, air release valves help maintain optimal performance. They are designed to close automatically once the air is expelled, preventing any fluid from escaping. This functionality is crucial for protecting equipment and ensuring the reliability of the system.