I'm installing a 15 foot tall chain link fence that is covered with with nylon shade fabric. Its purpose is to act a sun screen. The fence has two intermediate 4" posts and has 3 horizontal rails separated about 7' apart. The ends are welded to an existing i-beam columns (34' span)...
"Quality Cryogenics" and "Vacuum Barrier Corporation" are useful suppliers for cryogenic piping. We use both types of VJ piping in our plant.
You may want to contact "Lightnin' Mixer" or "Hockmeyer Equipment." They are experts in dispersion, agitation, and mixing for vertical tanks.