Re: Stub In Ver. Stub On

From: <elie>
Date: Wed Aug 17 2005 - 23:00:00 EDT

Stub in where the nozzle penetrate through the shell and is welded on the outside and from the inside of the shell. I have seen stub in on tanks nozzles.

Stub on where the nozzle lay on top of the shell or carrier pipe, beveled, and welded only from the outside (full penetration weld). It is typical for branch connection on piping. See also B31.8, B31.4, or B31.3 for illustrations.

This is just my humble opinion. Cheers.

• "M.Bakhshi" <M.Bakhshi@namvaran.com> wrote:

> Hi again!
>
> What are the differences between Stub In & Stub On
> and Where we use Stub On?
>
>
>
>
>
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