Re: Reinforcement Pad Weep hole

From: <Mohammed>
Date: Sat Oct 09 2004 - 16:10:00 EDT

The general practice is to grease up the weep hole after hydro test and during operation.
The only purpose of weephole is to vent out the gas during welding of reinforcing pads.

Regards
Mohammed Alamgeer

• Dharmendra Hingorani <dharmendra_hingorani@yahoo.co.in> wrote:

>
>
> I guess the best way will be to grease up the weep
> holes after hydro test.
>
> Dharam
> "harihara.v ramanan" <hramanan@yahoo.com> wrote:
> Friends
>
> 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. This weep hole is to
> be
> kept open during the hydrostatic test of the
> equipment. What is the practice during normal
> operation? Is this need to be seal welded, plugged
> or
> to be kept open? ANSI 31.3 and API 650 specify that
> this need to be kept open. As per one designers
> exchanger standard this need to be seal welded after
> hydrostatic test. If this is plug welded or plugged
> how can we find when it is leaking? If this is kept
> open is it possible that atmosphere get inbetween
> the
> shell and pad initiate corrosion? if it is plugged
> can
> the pad take the interanal pressure in case of shell
> failure.
>
> Your view please,
>
> Thanks
>
> HVR
>
>
>
>
>
>
>
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Declare Yourself - Register online to vote today! <a href="http://vote.yahoo.com">http://vote.yahoo.com</a> Received on Sat Oct 09 16:10:00 2004