Friday, June 5, 2009

[MW:2324] Re: 2198] Full Penetration Weld Test On Assemble Valve

Actually, customer require Full penetration Weld on the valve and not the test.
FYI, this valve completely assembled. Customer informed that they don't want tack welding and factory still need to proceed with Full Penetration Weld on the valve body and bonnet.
Please advise, on how to resolve this without disassemble the valve.
 
Regards,
alee

On Tue, May 26, 2009 at 3:19 PM, a lee <arlie327@gmail.com> wrote:


---------- Forwarded message ----------
From: abbey kangale <abhianu12@yahoo.com>
Date: Tue, May 19, 2009 at 12:58 PM
Subject: [MW:2212] Re: 2198] Full Penetration Weld Test On Assemble Valve
To: materials-welding@googlegroups.com


As discussed by  all PWHT is appliable but same time you need to carryout relevant NDE whichever you have carried out before welding
 
FPW in assembled valve will be considered as Repair on casting and you need to get approval for Repair procedure,WPS/PQR/WPQ,PWHT Procedure,NDE Procedure
 


--- On Mon, 5/18/09, Arjan van Vessum <vess_kiwi26@hotmail.com> wrote:

From: Arjan van Vessum <vess_kiwi26@hotmail.com>
Subject: [MW:2209] Re: 2198] Full Penetration Weld Test On Assemble Valve Date: Monday, May 18, 2009, 9:58 PM


As manufacturer already says it will increase tension and material structure, pwht is advisable. But if its a test and the customer pays, execute and report.

regards,

AJ

Date: Mon, 18 May 2009 14:13:15 +0800
Subject: [MW:2199] Re: 2198] Full Penetration Weld Test On Assemble Valve
To: materials-welding@googlegroups.com

Customer require Full Penetration Weld on Valve. However, manufacturer response as below..
 
To carry out the FPW on the valve with ASTM A351CF8C is not advisable. This is because during the process the material will expose to the temperature around 900 deg C.
When the material (ASTM A351CF8C)  expose to the temperature above  700 deg C it will transform or out of shape especially on the  parts like valve disc or valve stem,seat, etc.
This valve also required PWHT and the PWHT is carry out prior to assembling and because of welding bonnet , disassembling , machining and polishing cannot be done.
Therefore we wish to inform you again that it is NOT ADVISABLE to do the FPW.
 
But customer still insist on the test. Please advise.
 

 
On Mon, May 18, 2009 at 2:04 PM, Yeleswarapu, Ravi <Ravi.K.Yeleswarapu@c-a-m.com> wrote:
Mr. Lee – Could you post your question more in detail, as I understand the question – RT can be carried out on weld joint of assembled valve to test the weld full penetration.
 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Sent: Monday, May 18, 2009 9:57 AM


To: materials-welding@googlegroups.com
Subject: [MW:2198] Full Penetration Weld Test On Assemble Valve

 

Can Full Penetration Weld test on assembled valve ( ASTM A351CF8C ) ?

 

Please advise.

 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This email message is for the sole use of the intended recipient(s) and may contain confidential and privileged information of Cameron and its Operating Divisions. Any unauthorized use or disclosure is prohibited. If you are not the intended recipient, please contact the sender by reply email and delete and destroy all copies of the original message inclusive of any attachments.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~





Heb jij de nieuwe Messenger nog niet?! Download 'm hier
--~--~---------~--~----~------------~-------~--~----~
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.
-~----------~----~----~----~------~----~------~--~---

By -

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Re: [MW:35289] Welding consumable for S355J2WP material

S355 J2 WP  is a weathering structural steel  It has better atmospheric corrosion resistance. Use E 8018 - W1/W2  Electrodes This is regular...

  • Materails FAQs
    Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? ...
  • RE: [MW:5585] Buttering of weld joints
    Definition of buttering from ASME Section IX, QW/QB-492 Definitions:   Buttering:  the addition of material, by welding, on one or bot...
  • WELD AND WELDING SYMBOLS
    Section I. PRINT READING 3-1. GENERAL a. Drawings . Drawing or sketching is a universal language used to convey all necessary information to...