Re: [MW:13958] REQUIRMENT FOR TEMPORARY BLIND FLANGE USED FOR HYDROTEST

When two plates are welded, which means only welded at edges.
so there is chance of are gap between the plates else where, which is
effectively single plate thk. (If lamination exisit at 50mm depth on
100 mm plate then effective thk is only 50mm). same logic applies.

On 3/20/12, prasad rao <prasadrao31@gmail.com> wrote:
> Can you Brief us in what way it is unsafe and dangerous .
>
> As per the above photograph it is totally welded so there is no risk in
> that .But it not Good practise you say.
>
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