Effect of Nozzle Loads on Vessel Legs

You need to look under piping restraints and mounting, this I think will determine the additional loading....

https://www.researchgate.net/publication/320637053_Nozzle_Load_Considerations_and_Misconceptions_Introduced_by_Piping_Support_Friction

If you know the loads applied by the pipework on to the nozzle - force parallel to the nozzle flange and angle from vertical, force along nozzle axis, bending moment and torsion - it shouldn't be too hard to estimate the additional load applied to the vessel legs. In most cases the additional load is likely to be small compared with the load from vessel and contents.

Also vessel suppliers sometimes state nozzles can accept vertical loads only, no horizontal loads or moments. Might be worth checking that.

Thank you, for your response!

I have applied the nozzle loads globally (as vertical and lateral forces) in compress to see the effect on legs.