[MW:3094] Re: piping and pipleine spacing

Dear Friends,

Question asked by your friend is" i have 3 pipeline burried ...i need to know what minimum spacing is
recommanded....(api 1104/ b31.4)"

So instead of mixing up all information answers should be specific to the questions and convincing openions.

API 1104 deals only with welding requirements ,but the spacing is governed by B31.4/31.8 and national regulations for India {OISD} and some times the CP Design also to be taken into considerations. 

This is my view  considering question pertains buried cross country pipeline and not plant piping and user need to verify with respect the national regualtions requirements and design basis considered during engineering.

Regards

----- Original Message -----
From: Sujeet Sangle
To: materials-welding@googlegroups.com
Sent: Mon, 31 Aug 2009 16:36:30 +0530 (IST)
Subject: [MW:3091] Re: piping and pipleine spacing

Dear Lobo,

 

this is not given is code , this is was the client will be providing the information ,

 

If all is covered in code when why separate client specification are required ?

 

If not provided by the client , the contractor or the consulting party need to step up and inform the client .

 

pleas let all of know your views .

 

Thanks

 

Sujeet

On Sat, Aug 29, 2009 at 10:01 PM, <francis.lobo@indiatimes.com> wrote:

Dear Friends,

Pl give me the reference of respective code with the clause nos for the below mentioned reply.

Best  Regards,

----- Original Message -----
From: Sujeet Sangle
To: materials-welding@googlegroups.com

Sent: Fri, 28 Aug 2009 17:25:37 +0530 (IST)
Subject: [MW:3061] Re: piping and pipleine spacing

Dear Daniel ,

 

If you are looking for spacing between the pipe and the ground , it is stated in the API 1104 for p/l ,

 

If you are looking for spacing between 2 welds  usually it is 3  times diameter , or as per client specification

 

Usually this is defined as if the lenght is less will cause distorsion if the pup piec is very small in lenght and at the same should see their is a min spacing of 2 " between the HAZ of the 2 welds , in case u need to come to a smaller lenght .

 

Thanks

 

Sujeet

On Fri, Aug 28, 2009 at 12:48 PM, daniel iordache <daniel.iordache@gmail.com> wrote:

dear all,

c


thanks

regards

--
Daniel Iordache
Bureau Veritas - Angola
Mechanical Surveyor
Mobile Ao: +244921544583
Mobile Ro:   +40721731728
E-Mail: daniel.iordache@gmail.com


          daniel_iordache@yahoo.com

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