How and where is installed an expansion tank for heating

The expansion tank is integral to any heating system. Its main function - to take an excess coolant from the system and reset the excess air to the atmosphere. Video clip about where and how to set a diaphragm expansion vessel in the system of closed type heating.
How to install an expansion tank and connect to the heating system using polypropylene, using metal and plastic or copper pipes.
Expansion tanks for heating systems - inbud.ru/rasshiritelnyj-bak-dl...
How does the expansion tank for heating systems - • Как работает расширите...