The expansion vessel has changed the way central heating systems work. Table of contentsThe expansion pipe is fitted so that it hangs over the tank.If you fit an expansion vessel, you also need to fit a pressure relief valve.Water regulations say it has to be a removable link.Most system boilers come with the expansion vessel built-in,I have seen this many times over the years.Also, check to [...]
Table of contentsExpansion Vessels Expansion Vessels Expansion vessels are a small vessel that is generally used to contain excess water pressure within domestic and closed water heating systems. Thermal expansion is created during the heating of water, which can lead to problems if the system does not have a way to store some of the excess amounts of water and steam. The vessel [...]
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