Expansion Tank 12 liters

Pressure expansion membrane tanks are used in closed fluid circulation system for compensating thermal expansions due to changes in temperature of the fluid (heating or cooling). Expansion tanks are separated by membrane 2 to the chamber (water and gas). Upon heating, the expanding water enters the water chamber, and after cooling is pressed back into the system. Water and gas chambers, in connection with the mobility of membrane integrity and constantly have the same pressure, which prevents the system from the seal failure.

It was with the advent of pressure diaphragm expansion tank to mount appeared closed heating circulation system without contact with atmosphere.