Lug or Wafer?
We propose 2 types of butterfly valves ‘’Lug’’ and ‘’Wafer’’
The Lug style can be flanged only on one side allowing you to undo the other side to extend, deviate or service the piping. It offers more flexibility.
The wafer style must be installed in between 2 flanges to stay in place. It is the economical choice, but it will be impossible to isolate one side of the piping when the time comes for maintenance. Example: if you need to change the piping at the outlet of the tank, you would have to empty the tank first. If you had a lug style installed, there would be no need.