Ok, thank you for your reply; then I will perform a static equivalence method, therefore I need to apply concentrate force in correspondence of my PSV. For Example, if Vendor give me a reaction force of 400 N, I will aplly this force in both direction(inlet and outlet) of my PSV. Is it right?
I'd like to attach a sketch of my PSV in order to make easier the explanation but i don't know how to attach file to this post.