Clyde,

The results could be various depanding on the layout and locations of the EJ, anchor, shut off valve, and also the operating cases of 1 pump run, 2 pump run and 3 pump run. If the model is properly modelled, Carsar will give you the resuts for each case. I think the pressure trust load is high and it is not secondary load. Peng's stress analysis book has a detail discussion about that. But your case is more complicated since there are 3 pumps.

Carter