Blocking of a static mixer
 

Hi there,

I have a question regarding the blocking of a static mixer. In the pipe I have 9 mixing elements protruding to the inside. Now I have no idea how to block this parts.
Using the Manual, I figured out to put blocks around these elements, but I am not sure about the collapsing tool and how to use it. May you guys have some good ideas or advices on how to procede.
Thank you very much for the help!