[MW:1538] Min Separation of welds

No such requirement in code (B31.3) for min separation, it always from the client standards or the engineering guidelines issued at the beginning of the project, one such is attached herewith gives some idea, which we have used for one of the project in mid 90’s.

150mm as given below by Mr Nilesh for circumferential welds is normal engineering practice (I think Aramco or UOP standards specify similar requirement) followed by most of the pipe fabricators.

As far as I know PFI ES7 gives min spacing for welded nozzles.

EN 13480-3 also give similar requirement for branch welds (refer fig. 8.4.1-2)

Members pl. share if any other codes gives such requirement.

 

---

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Zameer Mohammed
Sent: Tuesday, February 10, 2009 2:32 PM
To: materials-welding@googlegroups.com
Subject: [MW:1537] Re: minimum length

 

Dear Mr. Nilesh,

 

Could you pls give the reference paragraph in the ASME B 31.3 which mentions this?

 

I heard it shall be 5t or min 300mm for the size of a pup piece. No where in the ASME B 31.3 I could see it mentioned. Correct me if I'm wrong.

 

Thank you,

 

Regards,

 

 

Sabir 

 

On Tue, Feb 10, 2009 at 11:28 AM, nilesh <nilesh_parsekar@yahoo.com> wrote:

Dear Javed,      As per ASME 31.3 it should be 150mm  Nilesh Parsekar,  QC CO-ORDINATOR (Dp Mech,API 510,API 570,AWS-CWI,NDT LEVEL2)  Belleli Energy  QATAR --- On Tue, 2/10/09, Mohammad Javeed <mmubasharjaveed@gmail.com> wrote: From: Mohammad Javeed <mmubasharjaveed@gmail.com> Subject: [MW:1534] minimum length To: materials-welding@googlegroups.com Date: Tuesday, February 10, 2009, 1:09 AM   dear all, have a nice day can any one tell me what is a  minimum length between two butt joints.( piece of pipe) with reference thanks with regards m javed

 

--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
-~----------~----~----~----~------~----~------~--~---