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Lycoming-8 · 02-21-2011, 01:29 AM

A pressure vessel like we are discussing should be welded to add fittings. However it is only appropriate for a 'code' welder to do any welding on such a vessel. Be very careful with these tanks or vessels. All official testing is always done with liquid (water), as any crack or leak will quickly lower the contained pressure. Obviously that is not the case when they are gas (air) filled.

02-21-2011, 01:29 AM	#22
Lycoming-8 Member Join Date: May 2010 Posts: 76	Re: Proof of the BIG Bang Theory A pressure vessel like we are discussing should be welded to add fittings. However it is only appropriate for a 'code' welder to do any welding on such a vessel. Be very careful with these tanks or vessels. All official testing is always done with liquid (water), as any crack or leak will quickly lower the contained pressure. Obviously that is not the case when they are gas (air) filled.