Friday, November 12, 2010

Re: [MW:8225] Hydrotest

Yes,
 
There should be changes .If temp Increases then Pressure will be increase in proportionally up to certain limit .If Pressure dropping means ....May ....
 
1. Temp decreases
2. May be air inside the pipe hence venting not done properly while filling the line
3. May be leak .
 
I hope you understand now .

On Fri, Nov 12, 2010 at 8:50 PM, Eduardo Calva <eduardocalva@hotmail.com> wrote:
Hi all¡¡¡
 
Please could some of you tell me about changes of pressure with changes in temperature?
 
We have done a hydrotest twice on the same pipeline trap and both were rejected by the cliente because next:
 
1.- Firstone was rejected because pressure and temperature decrease
2.- Second one was rejected because temperature decrease and pressure keep without low.
 
And the main question is:
 
Does the pressure have to change by changing the temperature?


Eduardo Calva



 

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Thanks  & Best Regards,

Suresh

Mobile No: 91-92 92 905 905

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