Solar Expansion Vessel

130 c available in sizes 12ltr 18ltr 24ltr 35ltr and 50ltr.

Solar expansion vessel.

Most commonly expansion vessels are 18l or 25l in volume but we have serviced and installed much larger vessels. During this period modern solar collectors may reach temperatures up to 200 c and consequently the fluid within the system can either evaporate or reach levels that can damage all the components within the solar energy system over time. Eco expansion vessel for solar heating systems. Altecnic s range of solar expansion vessels are specifically designed for renewables applications where high temperatures can normally be reached and where depending on the kind of system glycol can be present.

Expansion vessels are an important part and safety device of your solar hot water system. As the liquid heats up and expands the pressure of the system increase to an amount greater than the air pressure inside the expansion vessel and causes the membrane to take up more liquid to the air side. This rubber bag referred to as a diaphragm contains. An expansion vessel must ensure the solar system can work safely particularly during periods when hot water is not being drawn off.

The expansion vessel in a solar hot water system has to be able to operate at higher temperatures than those a standard heating vessel are subjected to. Do i need an expansion vessel in my solar system. An expansion vessel consists of a trapped volume of pressurised air gas inside a steel vessel which contains a rubber bag or diaphragm.