The Expansion Tank in the cooling system manages fluctuations in coolant volume caused by temperature variations. As the engine heats up, the coolant expands, and the excess is directed to the expansion tank. When the engine cools down, coolant is drawn back from the expansion tank to maintain optimal levels. This prevents overpressure or vacuum conditions in the cooling system.Attributes:• Manages coolant volume fluctuations.• Prevents overpressure.• Equipped with a pressure relief mechanism.Applications: The Expansion Tank is used to maintain the proper level of coolant in the cooling system and prevent damage caused by overpressure conditions.