Lethal service requirements in new Div 2

[jtseng123]

Hi folks, happy new year.

Just got a question from my project manager while I am enjoying my holidays:

"Did the new Div 2 Code did away with all the lethal service requirements such a impact testing and PWHT ?"

Please anyone who is familar with lethal service uisng latest Div 2 to advise. Thanks a lot.

 

[TGS4]

There is no "lethal service" designation in Division 2.

 

[Bmechz]

For lethal service all weld seam shall be visible to inspector during hydrotest,no RF pad should overlap any weld seams, same is mentioned in UG 99 g of Div 1.

Baijuz

 

[TGS4]

Baijuz - do you have a paragraph for that assertion?

 

[jtseng123]

Here is what I told my manager how to handle this problem:

"Design, fabrication and code stamp per Div. 2, and comply with Div 1 lethal service requirements. Where there is a conflict between codes, the most stringent requirement govern."
I don't see any vendor will have problem with it.

 

[TGS4]

jtseng123 - in my opinion, that is not a good way. I would figure out what you really want from the Div 1 requirements, and include them as specifically-named requirements in the Div 2 UDS. I would not, under any circumstances, simply refer to Div 1 for a Div 2 vessel. It's a lazy cop-out, when I can and should be managed in a well-written UDS.

 

[XL83NL]

I dont think Baijuz wont be (the kinda guy) able to (come back and) provide you an answer TGS4

 

[jtseng123]

Ditto to TGS4.