Expansion tank Cal-Pro 50CP by Zilmet, with a capacity of 50 liters. Every material, whether liquid, solid, or gas, expands when heated (i.e., its volume increases) and contracts when cooled. In heating systems, the water that circulates continuously heats up and cools down, leading to its constant expansion and contraction. When the water expands, its volume in liters automatically increases, and if the extra liters are not stored somewhere, the pressure will increase to high and dangerous levels. At this point, the expansion tank intervenes, which is responsible for storing the extra liters created after the expansion.

It is installed vertically, which helps save space. It has a base so you can place it freely without additional installation work.

Finally, choosing the right size tank depends on many factors, such as the water content of the entire system, the system pressure, the total height of the installation, etc. In any case, before making a purchase, you should consult a specialized engineer to recommend the best solution.