Pressurised expansion vessel for solar systems S 18 L
The main purpose of an expansion tank is to compensate the variation of the volume of water due to the variation of the temperature in heating systems.
For example, the water heating up from 0°C to 100°C increases its volume of about 4,5%. This means that there should be a space inside the system that can keep the exceeding volume of water. This space is the expansion tank.
|Water capacity||18 l|
|Max. pressure||10 bar|
|Starting pressure||2.5 bar|