There are no piping specs .... 7016 is making all of this up as he goes along
He will not share any piping specs he is supposed to use because there are none ....
His next question will will be about how to design a flange to mate up with his massive valve, what size flange thickness and what material to use for the bolts/studs and nuts ....
This is how things are slowly, incrementally done in the third world ...