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Is there a code for this. We have a WPB B16.9 16" 90` Elbows which have been bored from sch 80 to sch 40. The angel of the taper bore is 39, which in my opinion is to great for the flow. A colleague think that the angle of the taper bore shall be 17,5 and another think there is a...

This is how the Norwegian offshore industry ( Norsok) define it: Shall Verbal form used to indicate requirements strictly to be followed in order to conform to the standard and from which no deviation is permitted, unless accepted by all involved parties. Should Verbal form used to...

Hello, I am familiar with Ansi B16.9, where the out of roundness is the sum of absolute values of plus an minus tolerances. I have a 10 inch pipe (OD 273,05mm) with Wall thickness 4,19mm. Can anyone tell me how to understand the out of roundness of ASTM A999. It says; " The differents in...

I just received Ansi B16.9 2001 Revision. Are there anyone knowing if there are some "major" differents vs Ansi B16.9 1993 revision ?