Hi experts,

I need your help. I have a pipe of 1000mm diameter & branch having 800mm diameter. Please guide me in CAESAR II SIF & tees where I need define in the branch. small pipes always we will consider for center of pipe & branch but this is big diameter.

in the attached fig whether I have to define SIF & tees for Node 10 or Node 20. or I need to define for both nodes.