[MW:2979] Re: Pipeline rt inspection

Dear Daniel,
 
Line inside plant was designed by B31.3 or B31.4?,

if B31.3 then you have to weld and test according B31.3
if B31.4 then you can apply ASME IX-B31.3 or API 1104 for shop welds (and API 1104 for cross country)- B31.4 434.8.3-2002-

 

if the line inside plant is already welded then testing has to be according to the standard that you use for the welds.

 

I've made the assumption that gas oil is diesel, other way the code for gas transmision and distribution is B31.8

 

KR

AV

 

 

> Date: Thu, 20 Aug 2009 10:48:50 -0200
> Subject: [MW:2975] Pipeline rt inspection
> From: daniel.iordache@gmail.com
> To: materials-welding@googlegroups.com
>
>
> Dear all,
>
> We have to build two 10" pipelines according Api 1104- one bitumen in
> concrete trench and other by gas oil (buried)... we have 10% RT
> .....but a part of lines are inside plant (around 30 meters -15
> welds.....)
> how we will inspect RT the welds inside plant ...according API or B31.3?
>
> Also along the bitumen piping system and pipeline we have 1" hot oil
> traced line .....
> What kind of inspection is recommended? RT%? PT%? Visual?
>
>
> Thanks
>
> Daniel
>
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