I intend to let you guys know what the AI says during the audit but my understanding is that the shape is to be checked. Not just the thickness.
I spoke to a heads manufacturer and he confirms that cut-outs are used to check the shape. He also confirms that the ellipsoidal 2:1 heads are made...
Thank you for the interest,
Material is SA-234-WPB, 8"NPS schedule STD.
I have clarified another thing, the tolerance of pipe schedule also applies. So in our case, I think my inner diameter can vary in this range:
a) largest inner diameter D : (8.625-2*0.875*0.322)=8.0615"
b) standard inner...
Gentlemen,
Our ASME "U" stamp audit is coming up and our mock-up vessel is made with an 8" NPS pipe cap ASME B16.9.
The AI during his visit to prepare us for the audit has asks to insure the received pipe cap be checked for dimensions before being used.
Apparently, the dish radius and knuckle...
