You know the formula P1V1 =P2V2 IF TEMPPRETUTE IS CONTANT,
IF TEMPRETURE CHANGE FROM T1 TO T2 PRESUURE AS WELL AS VOLUME WILL BE
CHANGE.
Pls do the Hydrotest during forenoon, pressure will increase due to
tempreture increse and there will not be any pressure drop. During
afternoon tempreture decrease so pressure will also decrease.
Use Pressure and Tempreture chart Recorder and convince your inspector
to accept the same.
Regards
Israr Ahmed
Tata Projects Ltd.
+919930308261
On Nov 12, 8:20 pm, Eduardo Calva <eduardoca...@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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