please help.

it seems re-routing of pipe is not possible, so I opt to use expansion joint and would try to explain the effect of using it...

i got basic info on the use of expansion joint. however, please throw some light on some of the questions i got.

1. i would like to use a tied expansion joint (lateral movement only)... CAESAR got steps on modelling it... however, i got one procedure which i thought is also applicable. clicking the expansion joint on spreadsheet... input the axial and torsional as totally rigid bellows (1E12), and "assuming 300 N/mm" initially as my transverse stiffness until i got the calculated loads within the allowables... is this one of the "right" approaches?

2. how can i assume the length of the expansion joint (2 flanges+bellows)? i would like to give the manufacturer a "close" length so i can fix my piping layout.

your response would be greatly appreciated...