Welding after hydrotest
Welding after hydrotest
(OP)
Would it be permissible to weld non pressure parts to the interior of a vessel after hydro testing when not subject to PWHT?
I know that UG- 99 a.1 indicates that all fabrication should be complete before hydrotesting, but does this not apply only to pressure envelope?
Thanks for any information
I know that UG- 99 a.1 indicates that all fabrication should be complete before hydrotesting, but does this not apply only to pressure envelope?
Thanks for any information





RE: Welding after hydrotest
RE: Welding after hydrotest
If you are adding trim that is not welded directly to the vessel wall, this can be done with approval from the AI.
RE: Welding after hydrotest
Why do you think AI should be consulted for this?
Only reason i could think is, this additional attachment may affect structural integrity of vessel. Just curious.
Thanks.
RE: Welding after hydrotest
RE: Welding after hydrotest
Why not ask? Keep yourself out of trouble.It may be simple as a phone call. If this does not take place it raises questions about your entire program. Do audits and hold points ring a bell?
Remember who the last guy to sign the Data Report is.
RE: Welding after hydrotest
GB