Thanks MoverZ, but where exactly can I say that the limit is only 2 or 4, I can not find anything in API610.
I found an online presentation "http://calgarypumpsymposium.ca/uploads/PDFS/2011Presentations/Calgary%202011%20Nozzle%20Loads%20Presentation.pdf" stating that API610 Annex F can go upto 4 times Table 5 for individual loads but I can not find in API610?