It is a waste of money to leave it on until the weld is complete.
Christiaan van Dyk
Lead QC/QA Inspection supervisor.
Technip Angola.
To: materials-welding@googlegroups.com
Subject: [MW:7587] Purge Gas
Date: Sat, 16 Oct 2010 09:14:09 +0400
From: jhardcastle@euromechanical.com
When can we remove backing gas purge from non-ferrous pipe joints.
Can we remove the gas purge once the root run is complete, or once the root and first hot pass is complete.
We leave the gas purge on until the joint is capped and i am sure this is wasting gas.
| John Hardcastle |
| Fabrication Manager |
| |
| Euro Mechanical Contractors Company Factory |
| P.O. Box 46153 Abu Dhabi United Arab Emirates |
| Phone: +971 2 550 08 99 |
| Fax: +971 2 5501898 |
| Mobile: +971 50 4445873 |
| Email: jhardcastle@euromechanical.com |
| www.euromechanical.com |
| |
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