WPS - In service welding
anas k
Faisal Shahzad Meer
Hera are some recommendations to qualify PQR for In service welding of split Tee.
· The requirement for production welding in section 5/7 should be applied to in-service welding except for the additional requirement given in the appendix-B.
· For circumferential fillet weld Dia, thickness and base metal are not the essential variables as per Appendix B, Para B.2.2.1.1 and 2.2.1.3.(additional requirements) but not for longitudinal groove weld.
· For in service welding PQR needs to be qualified as per fig B-2.
· Mechanical test should be as per Table B-1.
· C.E and pipe operating conditions shall be mentioned in the procedure.
Regards
Faisal Shahzad Meer
TEL :+966 3 6795805-7 Ext. 124|www.gccksa.com
E-mail fm...@gccksa.com
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joydev dalai
Dear sir,
As per API 1104 the Dia range
A change from one specified OD group to another. These groups are defined as follows:
1) specified OD less than 2.375 in. (60.3 mm),
2) specified OD from 2.375 in. (60.3 mm) through 12.750 in. (323.9 mm),
3) specified OD greater than 12.750 in. (323.9 mm).
As per API 1104 the thickness range
A change from one specified wall thickness group to another. These groups are defined as follows:
1) specified pipe wall thickness less than 0.188 in. (4.8 mm),
2) specified pipe wall thickness from 0.188 in. (4.8 mm) through 0.750 in. (19.1 mm),
3) specified pipe wall thickness greater than 0.750 in. (19.1 mm).
anas k
Faisal Shahzad Meer
MR. ANAS
YES
IF YOU WILL GO THROUGH APPENDIX –B IT CLEARLY GUIDES US THAT IN-SERVICE WELDING PROCEDURE WILL BE BASED ON THE API-1104 PLUS ALTERNATIVE/ADDITIONAL REQUIREMENTS GIVEN IN APPENDIX B.
Regards
Faisal Shahzad Meer
QA/QC WELDING
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waqas suleman
Faisal Shahzad Meer
Dear Waqas
Use the attached test assembly (Figure-B-2) given in appendice-B of API-1104.
Then attached the pump with known flow rate with its “fluid in” nozzle during welding to simulate real welding conditions.
Using water during PQR test will qualify all the flow rates and flow media because water produces severe thermal conditions.
Regards
Faisal Shahzad Meer
Project Quality Supervisor-Welding
J-505, Saudi Aramco Wasit Downstream Pipelines Project
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Ibraim Ali Elfadol
السلام عليكم ورحمة الله
Please advise us about the following
1. We are preparing a new WPS for in-service welding.
2. Our scope is mechanical sleeve type b pipeline repair.
3. The pipeline operation condition has several flow rates.
do we need to make individual WPS for each flow rate, or one WPS could be applicable for all the flow rates?
Thanks,,,
Ibrahim Ali Elfadol Mohammed
Construction Manager
EXICO Petroleum Services Co.
eng.i...@gmail.com
+249126466109
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