You can weld on hydrotested line, but you have to repeat the test or
{{{{ perform NDT testing if hydrotesting is not practicle (depending on the code)}}}}
> --- In PipingDesign@yahoogroups.com,
> Gordon.Reddek@A... wrote:
> 3) The leg MUST be welded on before heat treatment
> and hydrotest.
> Welding
> to tested pipe is generally a no-no.
>
>
> ______________________
>
> Pipe was hydro and leak was noted. Does that mean
> that the fix could
> be anything other than welding after the PWHT was
> carried out? Let us
> further assumed that the leak was observed at the
> weld joint and the
> line is new.
>
>
>
>
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