We have a project that we were about to encounter a problem with. Thankfully it resolved itself without going this direction but I still have the question in my mind of: is it possible?
-We have a pressure vessel; Section VIII Div 1. Head welded to a shell using a single sided butt weld.
Due...
All,
I am currently going though some issues with an impact tested weld procedure that also needs PED sign offs :( P1G1-P1G1 1.5" coupon GTAW root with SAW fill/cap.
I completely understand that I need to use QW-403.6 and that it only qualifies me for a min weld thickness of 5/8. It's...
What is an acceptable pressure drop rate for a hydro test?
We test units produced at our shop to both Sec 1 and 8. We perform PED, IBR, GOST jobs. We provide CRN when required...we are very experienced in dealing with code hydros.
Typically we hydro at pressures around 4KSI to 6KSI. Typical...
We have a customer that has come back on our ASME P91 GTAW procedures that 400deg preheat is insufficient. They require us to maintain a MINIMUM preheat of 899F!!! No, that's not a typo.
Here's the real kicker....they ALSO require a MAX heat input of 1.2 kJ/mm.
Yes, I know it's impractical but...
B16.47 Question
Greetings,
My Question is 2 parts:
We have a 48" 600# RFWN 44.5" bore SA-350 flange on a unit that was built to the B31.3. The unit fell off of the semi-truck transporting it resulting in damage to the OUTSIDE of the flange. (No flange face damage, just road rash to the outer...
