I've got a tower with a 10" vapor line coming out the top of it and running the side of the vessel. Near the top of the vessel is a rigid support, halfway down is a guide with a +Y support, and near the bottom is another rigid support. The pipe has a small horizontal run a little ways down the pipe for flexibility. See picture.

My company's standard vessel pipe supports can support a maximum of 2500 lb each. During the hydro case, my top support is carrying 6400 lb, and the middle support is for some reason carrying none. My understanding is that the middle +y support should be carrying some of the weight during the hydro case, so I need help determining why it is not.

Pipe design temp is 275F and vessel average oper temp is 235F. Pipe normal operating temp is 225F, although this is irrelevant I suppose.
[img:left]https://www.sugarsync.com/piv/D7819491_65874299_618591[/img]