An Expansion Tank is used to provide a reservoir for excess coolant fluid. As the engine heats up during operation, the coolant expands, increasing the pressure within the cooling unit. The expansion tank acts as a safety valve, allowing the excess coolant to flow into the tank, preventing any potential damage to the engine or cooling unit parts.Attributes:• Helps regulate the pressure within the cooling unit• Ensuring a consistent coolant level and preventing air pockets from forming Applications:An Expansion Tank helps to accommodate the expansion and contraction of coolant fluid due to temperature variations within the engine cooling unit.