Expansion Tank

An expansion tank is a pressure vessel, typically filled with air or an inert gas, that absorbs the increased volume of water or fluid as it heats up and expands in a closed system. It is crucial in automotive cooling systems to prevent overheating, and in domestic heating and water systems to prevent damage from pressure buildup. By providing a cushion for the expanding fluid, the tank maintains consistent pressure, protects system components like pumps and valves, and ensures the longevity and efficient operation of the system.