Zilmet is one of the oldest and largest expansion tank manufacturers in the world. Established in Italy in 1962, Zilmet is an international manufacturer of quality expansion vessels, pressure tanks and plate heat exchangers with several branches and worldwide distribution.


*New from Zilmet USA*


  • The Zilmet Tank Sizing Program is available in our Resource Library under Sizing Programs, click  HERE for a direct link.

  • The Zilmet Tank Sizing Program is also now available as a free app.  The app can be downloaded on your Apple or Android smart phone.  Search your app store for "Zilmet Sizing".  


  • Zilmet Heat Exchanger Quick Sizing Charts are now available in the Resource Library under Sizing Programs.  These are useful for general sizing applications.