Re: [MW:14792] Permissible value in decreasing of liquid level in hydrostatic test for aboveground storage tanks

you can use multiple plates also. They could be seal welded and make sure, it is leak proof..

sridhar.

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From: Jorge Mejía Lema <jmejialema@gmail.com>
To: materials-welding@googlegroups.com
Sent: Thursday, 5 July 2012 8:25 PM
Subject: Re: [MW:14772] Permissible value in decreasing of liquid level in hydrostatic test for aboveground storage tanks

Excuse me, which the tank diameter?  The size of  the steel plate is commercialy 6 feet x 40 feet.
Regards,
jorge Mejia

2012/7/4 muthuvel <muthuvel_a2000@yahoo.co.in>

Dear sir,   Can you anybody tell me, for constructing the Tank of Bottom Plate , shall we use single Plate for bottom instead of wleding to join the plate .   Rgs,   Muthuvel.A --- On Tue, 3/7/12, eccospi <eccospi@gmail.com> wrote: From: eccospi <eccospi@gmail.com> Subject: RE: [MW:14755] Permissible value in decreasing of liquid level in hydrostatic test for aboveground storage tanks To: materials-welding@googlegroups.com Date: Tuesday, 3 July, 2012, 9:48 PM Dear Mr. OZDEMIR   To answer your query there is some further data required:   1.       The tank top: Open top  or Fixed Roof or Floating Roof. 2.       Roof Venting System. 3.       The Atmospheric Temp in this specific area. 4.       Any Settlement measure being carried over while Hydrostatic testing for the Bottom??? [ by measure or visually] 5.       Shell Condition with regard to Peaking and Banding from outside [ any changes occurred] [ by measure or visually] 6.       Shell Plumpness. [ by measure or visually] Any way as the difference in these two  measures  is 23 mm= 0.2% for the duration  5 days and if you are in Hot weather condition @ Ambient reach +29C or higher  with open top tanks or good venting system with fixed roofs you can reach such evaporation in the contained water is considered from my point of view reasonable as You need to calculate the evaporation rates to get the actual amount of loss.   N.B.: The level of water in Hydrostatic testing results in consideration the following: 1.            Any detected leak.[ reference duration to be done in 1 to 3 Hours] 2.            Any Deformations to the Shell or Roof.[ days as for base settlement ] 3.            Measure the Foundation Settlement while actual full loading case.   I hope this will be of any help to your question.   Best rgrds D.eng.A.Aziz Gendia ecco-spi President & CEO Mob.: +2012 21 33 956 Fax: +202 2477 8411 e-mail: ecco-spi@gmail.com       From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of ESMAT S Sent: Tuesday, July 03, 2012 12:49 PM To: materials-welding@googlegroups.com Cc: materials-welding@googlegroups.com Subject: Re: [MW:14748] Permissible value in decreasing of liquid level in hydrostatic test for aboveground storage tanks   Is tank exposed to the sun?!! Sent from my iPhone On Jul 3, 2012, at 11:51 AM, "tugrulhan özdemir" <tugrulhan9@gmail.com> wrote: Hi everyone     Is there anyone have an idea about  Permissible value in decreasing of liquid level  in hydrostatic test for aboveground storage tanks.   For example  just after filling the tank liquid level was 10610 mm   at 29degre celcious                            after 5 days the tank liquid level was 10597 mm at 29degre celcious   otther infos: New tank , first time for hydrostatic test,  A36 material   Thank you       Tugrulhan OZDEMIR   -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents. -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents. -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

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To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.