Re: [MW:32311] Re: Back Weld at Pressure vessel - U stamp

Everyone will have a different understanding when your question is not clear. A bit of information will not guide users to respond properly.

 

            Anyway, Go ahead to issue NCR and let us know how it went / closed from the vendor side. 

Thanks and Regards

Rameshkannan D

"What you have learned is a mere handful; What you haven't learned is the size of the world – Avvaiyar"

On Tue, Apr 20, 2021 at 2:21 PM sankar bombay <sankar.bombay@gmail.com> wrote:

Bro ,

I don't think so you doesn't understand my question 

What is the problem ? or what is your valid reason for rejection ?- all things we cannot accept whatever the fabricators or doing jobs , its should be according to project specification and code requirement 

When defects are found, it must be repaired right ? whether in root or anywhere ! - there is a standard for repairing methods , there is any code mention that you can repair from inside , WPS it was not mentioned , how do you agree with these things ?..

Do you have any option other than repair ?-there is no Repair WPS and Procedure does not mention how they will repair 

In any case, finally it going to be accepted with repair procedure ( Method statement, approved WPS for repair & further NDT )  - If they follow according to our project specifications we will accept otherwise it will be NCR for that company 

On Mon, Apr 19, 2021 at 3:51 PM Ramesh <rameshkannandevaraj@gmail.com> wrote:

What is the problem to accept ? or what is your valid reason for rejection ?

 

When defects are found, it must be repaired right ? whether in root or anywhere !

Do you have any option other than repair ?

 

In any case, finally it going to be accepted with repair procedure ( Method statement, approved WPS for repair & further NDT )  

Thanks and Regards

Rameshkannan D

"What you have learned is a mere handful; What you haven't learned is the size of the world – Avvaiyar"

On Mon, Apr 19, 2021 at 4:01 PM sankar bombay <sankar.bombay@gmail.com> wrote:

On Mon, Apr 19, 2021 at 11:39 AM Vishwas Keskar Welding Manager WELDING <vvkeskar123@gmail.com> wrote:

Is  that WPS  addressing - 

 QW 402  - Joint design - GTAW - Backing - With/Without 

(Ref - QW256- GTAW - QW 402.5- Addition of  backing is Non essential variable.)

if Both (Backing - With/Without  )  is addressed( which  like  normally is  addressed), then there is no issue at  all .

Eg-

QW 402-

Backing: With/Without                                                                         

Root spacing: As per piping fabrication drawing                                                                                                          

Backing Material (Type): Yes (Metal)

1. Metal -        2. Non-fusing Metal      

3.   Nonmetallic NA   4. Others 

The matter is to  be resolved  amicably . Meet QAC  In charge along with Welding Engineer, Manufacturing Responsible. Explain him the details . 

It shall be acceptable.

Regards

On Monday, April 19, 2021 at 7:20:46 AM UTC+4 sankar krishnan wrote:

Dear Gentlemen,

   Good Evening, In our project Vessel joint thickness 10mm ,Process(GTAW+SAW),Single V joint 

They completed Welding ,Few days later during Inspection we observed , They have done Internal Welding of the shell, As per WPS its not shown 

Guys let me Know  its can Accepted or Rejected 

If Rejected , Please send Reference code standards

As per QW 402.5 Joints (Backing its non Essential ),Its mention Backing strip or also back welding 

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