CLOSED EXPANSION TANK

Closed expansion tanks with replaceable membranes are used in heating systems to meet the increasing fluid volume with the increase in temperature. The fluid circulating in the system begins to expand with the effect of heat. The expanded amount is filled into the expansion tank and is cushioned with pre-filled gas around the membrane in the tank. Thus, the expanding fluid is prevented from damaging the system. With the cooling of the fluid circulating in the system, the expanding amount is directed back to the system from the tank by the pressure of the gas around the membrane.

Advantages of using a closed expansion tank;

•     Fuel saving is achieved as the obligation to heat the inactive water in the open expansion tank is eliminated.
•   Since the closed expansion tank will be installed in a sheltered area such as the boiler room, heat loss is reduced and fuel savings are achieved.

• Since the system is closed to the atmosphere, no oxygen enters from outside and equipment such as plumbing, radiator, pump, boiler, etc. are less affected by corrosion.

It saves space as it takes up less space compared to the open expansion tank.