An Expansion Tank is used to accommodate the change in fluid volume due to thermal expansion and contraction. As the fluid in the system heats up, it expands in volume and the expansion tank provides space for this expanded fluid. Then as the system cools down, the fluid contracts, and the fluid level in the expansion tank drops.Attributes:• Withstands pressures up to 40kPa, ensuring system stability• Prevent damage to the system and ensure constant pressure• Prevent air bubbles from circulating in the system by separating air from the fluidApplications:An Expansion Tank is used to protect closed-water heating systems and domestic hot water systems from excessive pressure.