Dear All,

There are some pressure vessels which are required to be ASME Code U Stamped.
The design code is ASME Section VIII Div 1 07 Ed., 09 Add.
Currently ASME 2010 Ed. is available. However, my client says design shall be as per ASME Section VIII Div 1 07 Ed., 09 Add.
We did our design calculation on the basis of 07 Ed , 09 Ad.
However, vendor is saying that the ASME authorized inspector will not accept the calculation as per 07 Ed., 09 Add. He will ask for the calc do be done as per latest edition of code (2010 Ed).

Is it correct ??

My doubt is "whether for ASME Coded vessel we have to carry out the design calc as per latest code or that mentioned in Purchase Order will be the Design code.

Any suggestions


Regards
Dilip

what is date of your purchase order. if, it's before, 1st Jan 2011 then Code edition 2007 + Addenda 2009 will be applicable. if it's on & after 1st Jan 2011 then Code edition 2010 will be applicable.

Vishal ,

thanks for your reply.
The applicability is ok. As 2010 Ed will be applicable from 1st january 2011. However, the clent is saying that they want the design as per 07 Ed. 09 Add. then i think we have to carry our design as per my client requirement.
My doubt is about ASME Inspector and ASME code stamping. Is latest design code is mandatory for a vessel to be Stamped ?

Regards
Dilip

please, refer my reply calmly. what is date on purchase order.
forget client. you has to be select code edition & addenda as per date of purchase.

PO is not yet placed

what i can understand.
you have received order to some XYZ. you have designed & prepared the drawing. now, your vendor will fabricate this equipment.
what has been submitted to vendor initially? LOI / PR? date of that document will govern for vendor to follow edition & addenda. and your document has to be reflect that same applicability.

hope, this is clear to you, now.

thanks for your response.

No till now nothing like that has happened. i am preparing technical bid evaluation. In that one vendor has raised a query that if he will design the vessel as per ASME Section VIII Div 1,07 Ed,09Ad. then ASME AI will reject the vessel and he will ask the design as per latest ed. of code and that is 2010 Ed.
The same thing i am telling that whtever mentioned in PO will govern.
However, i discussed this my friends but they gave mixed suggestions.

Regards
Dilip

To fabricate an ASME Coded (stamped) vessel you have to carry out the design calc as per latest edition & addenda.

If your purchase order had been dated before Jan. 1, 2011, then you could have built pv to ASME Section VIII Div 1,07 Ed,09Ad.

Your QA/QC Manual, like ours, will state that all new fabrication and repair/alteration undertaken shall meet or exceed the requirements of the jurisdictions and current editions of the National Board Inspection Code and appropriate sections of the ASME Code Section VIII. Div. 1.


QCRobert

"After Code revisions are approved by ASME, they may be used beginning with the date of issuance. Revisions, except for revisions to material specifications in Section II, Parts A and B, become mandatory six months after such date of issuance, except for boilers or pressure vessels contracted for prior to the end of the six-month period." It's defined in ASME VIII-1 FORWORD. So, I had discussed with our AI when I met the project, the fact is that the project had been built in 2004, but our company got order in 2006, anccording to code required, the equipments need to be designed comply with code 04ED.& Add.05, unfortunately,our client insisted in that design shall be comply with code 04ED. since the whole project designed comply with code 04ED. We have to discuss with our AI. After discussing with his authoritative colleague, AI thought that It's reasonable to construct the equipments comply with code 2004 ED., the time limited in the above sentences shall be understood not only for manufactures getting order but also the whole project getting order.

I have met cases like this before. It happens. Sometimes it is a revamping and the User wants an identical p.v. to the existing one. it happens also that an Engineering gets the complete plant at a certain date and fix as the contractual Ed. of the Code, that valid at that date.
I resolved by verifying the construction to be in accordance with both Ed.& Add. The one required and the one mandatory. I asked to enter in the MDR the year of Ed.& Add mandatory at the time of the construction and to add "complies also with Ed.../Add... " entering here the Ed/Add required by the Customer.
Mauro