Product Information:
An expansion tank or expansion vessel is a small tank used to protect closed (not open to atmospheric pressure) water heating systems and domestic hot water systems from excessive pressure. The tank is partially filled with air, whose compressibility cushions shock caused by water hammer and absorbs excess water pressure caused by thermal expansion.
This part is present 51 different boilers in the Vaillant range including the Vaillant Ecomax 613 - Vu126E Condensing System, Ecomax 613/2E - Vu126/2C Condensing System, Ecomax 618 - Vu196E Condensing System, Ecomax 618/2E - Vu186/2C Condensing System.
At the bottom of the page is an appliance table with the links to all boilers that contain this part. Please use this if you would like to view all other spares that fit that model by clicking on your appliance model and download the user manual for that appliance. If none of these models match the appliance you have, please contact us before ordering so we can confirm this part is compatible.
We recommend that all parts are fitted by a fully qualified Gas Safe Registered Engineer. If you require any help locating a part, please feel free to contact us.
Vaillant 181051 Expansion Vessel Complete
Boiler Parts | |
Part Type | Expansion Vessels |