Re: settlement

From: <Gang>
Date: Tue Apr 03 2007 - 00:55:00 EDT

Hi guys and gals,
It would be a wise practice to provide a little offset in the piping system next to the tank nozzle, with a downward slope (of say 200 mm) and then configure the pipe routing to the pump or whatever it might be. Then analyze the system for stress analysis till its safety and acceptable level. The tank settlement occurs after a pretty long time of operation (during hydro-test very remote possibility) even years. In that event, the level difference (of 200 mm) would generally be sufficient to compensate for the displacement, which in its own case would be absorbed by the offset provided in the piping layout.
Cheers!
C. V. Gangadharan.

• abdul aziz vayani <azizvay72@yahoo.com> wrote:

> Hi Mahdi
>
> As far as i understandand that tank settlement will
> change in vertical distance (in case of nozzle
> located at elevated position) or vertical clearance
> in grade level piping. In both cases you can handle
> this situation by providing screw type adjustable
> support. In this support you can adjust the TOS (top
> of support) as per BOP results in settlement of the
> tank.
>
> Cheers
> A. Aziz Vayani
> Sr. Facilities Design Engineer
> Clough ----- Pakistan Operations
>
>
> ----- Original Message ----
> From: mahdi_amb <mahdi_amb@yahoo.com>
> To: <a href="/group/PipingDesign/post?postID=Fo3YZnKDFyRpMsCca1DIbKJsqsN3RYDJ0sVus_QKXo4sIi7ry6sLXDcSySLP12kHnXXMGbab6K7FmjIIPn81zzDRSA">PipingDesign@yahoogroups.com</a>
> Sent: Sunday, April 1, 2007 7:18:10 PM
> Subject: [PipingDesign] settlement
>
> Hi all
> In the LAVAN LPG project we have some LPG tanks.
> After hydro test
> according to soil reports we have 1 to 2.5 cm
> settlement and time of
> this test is 3 months. So according to project
> conditions we have we
> don't have enough time. And we have to change the
> piping routes. So
> here I need to help.
> What can I do?
> We want to not buy expansion joint or loose flange
> can we use CAN
> support (negative springs) or not?
> If we have to use expansion joint do we have special
> standard about
> this one or not?
>
> Please help me.
> Thanks advanced.
> Mahdi.N.R
>
>
>
>
>
>
>
>

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8:00? 8:25? 8:40? Find a flick in no time with the Yahoo! Search movie showtime shortcut. <a href="http://tools.search.yahoo.com/shortcuts/#news">http://tools.search.yahoo.com/shortcuts/#news</a> Received on Tue Apr 03 00:55:00 2007