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DWWP SS Series Complete Stainless Waste Water Pumps
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DWWP C and C1 Series Closed Impeller Waste Water Pumps

Expansion Tank

When the water heats up, it expands, and the expanding water causes the pressure in the closed heating systems in which it is located to increase. Over time, the pressure increases even more and various fluctuations occur. If the water that expands with an increase in temperature is not controlled, it causes leaks in the pipes, boiler and heating system, which leads to a malfunction of the system. The device designed to block pressure and possible dangers is called an expansion tank. The expansion tank acts as a “mediator” between the increased heat pressure and the heating system. Mediator is a kind of “mediator” between the expansion tank and the heating system. It allows the temperature to be controlled, reduces the pressure in the system, balances it and helps the system to operate at the desired performance. Nowadays, there is an expansion tank in every boiler room. Expansion tanks equalize the pressure in the system. It is a small tank divided into two parts by a rubber diaphragm. The system works as follows; when hot water enters the heating system, the pressure in the system increases. As this pressure increases, the diaphragm located in the expansion tank is pushed down. Thus, the air in the tank is trapped and a space is created for excess water to enter. Excessive pressure in the system is reduced and thus damage to the pipes is prevented.

       

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Description

What are the Factors to be Considered While Choosing the Expansion Tank?

Factors to consider when determining the exp

ansion tank for a system includes the following points;

  • Temperature of the liquid
  • Liquid type
  • The size 

    of the tank.

Stainless Expansion Tank can be used for environments where hygiene is important or it is very humid. There are expansion tanks in different sizes according to the characteristics of their pump system. The volume of the expansion tank varies between 25-5000 Liters and 10-25 bars. There are also types of tanks such as sphere, cylinder, horizontal and vertical. On average, pressure vessels last about 5-7 years. The following issues should be considered when purchasing an expansion tank;

  • Capacity (Liters)
  • Height of the place to be used
  • Compression strength
  • Auxiliary equipment to work with the expansion tank

The total volume calculation of the membrane tank can be practically done according to DIN 1988 part 3 as follows;

0.33 = Constant coefficientformul
Qmax = Maximum flow rate of the booster system
Pa = Booster operating upper pressure
ΔP (a-e) = Booster operating differential;
the difference between the operating upper pressure and the lower pressure
S = Number of switchgear; Number of activation and deactivation of the booster system per hour