Re: [MW:10081] Need clarification about API 1104

Yes, B.2.2.1.3 does not specify that wall thickness is an essential variable. But first of all, wall thickness of the pipe should be considered against thermal severity of the piping during in service. accepted minimum thk is 4.8mm (0.118").

Let this helps

Rgds,

2011/3/1 James, GeraldJayakumar <GeraldJayakumar_James@fwuk.fwc.com>

Sleeve longitudinal welding  & Branch welding will be covered by API 1104 clause 6.2.2.e

 

In Sleeve to Pipe Fillet weld, the wall thickness is not an essential variable according to API 1104 clause B2.2.1.3 Appendix B

 

J.Gerald

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of joshi jaydeep
Sent: Tuesday, March 01, 2011 3:30 PM
To: materials-welding@googlegroups.com
Subject: [MW:10069] Need clarification about API 1104

 

Dear all,
 

API 1104 Clause No. 6.2.2 (e) mentions about the 'Pipe wall thickness grouping' as an essential variable.
 
If we have a requirement of welding a sleeve on Pipe (as in-service weld), do we need to consider the Sleeve thickness as an essential variable?
 
I believe API 1104 code is silent about the Sleeve thickness.
 
Please guide.
 
 
 Thanks and Regards,
 

Jaydeep Joshi |Welding Engineer, TDW India Limited

Plot No 16 | Phase –III | Alindra – Savli G.I.D.C | Taluka : Savli | Vadodara – 391 775

Board : +91-2667- 619900 | Fax : +91- 2667- 619501| Extension : 7845

E-Mail : jaydeep.joshi@tdwilliamson.com  | www.tdwilliamson.com

Cell: +91 9978959626

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