Reinforcement pad are for mechanical re-enforcement
only and not to contain pressure, hence, the need for
a weep hole. If they are designed to hold pressure,
they shall be coded like any pressure vessel.
My humble opinion.
> --- In PipingDesign@yahoogroups.com, >
> > On Oct 6, 2004, at 4:55 AM, harihara.v ramanan
> wrote:
> >
> > > Weep holes are provided in nozzle reinforcement
> pads
> > > of branch connections in piping and nozzles in
> > > pressure vessels, tanks and heat exchangers to
> vent
> > > out the gases during welding.
> >
>
> Christopher Wright <chrisw@s...> wrote:
>
> Actually they're used to give notice of leaks, which
> might take
> place
> > during hydrotests. There's no way gas can be
> trapped inside during
> > welding.
>
> _______________________________
>
> Ive witness it several times before. A RP was welded
> without the
> weep hole. Pad bulges. And we never plug (fitting)
> the weep holes.
>
> Aside from venting gas during welding and providing
> you with a tell-
> tale hole (notice of leaks as Chris said)udring
> operation, the weep
> hole is also use to perform a soap and bubble test
> (part of
> testing/exam prior to signoff).
>
>
>
>
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