Central heating system component.
Expansion vessels are designed to absorb heat expansion of the heat carrier in closed heating systems. The main purpose of the expansion vessel is to compensate for a change in the volume of water due to the change in temperature in heating systems. For example, when heating the water from 0 to 100 ° C, it increases its volume by about 4.5%. This means there must be space inside the system to keep it free from leaks and ruptures.
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