2 replies to this topic

[tika5828]

If we do hydrotest at night vs at noon, is there any difference on the water pressure during hydrotest? I heard from QC Engineer, during at night, they did hydrotest but the water pressure was decreasing and it had quite significant effect on hydrotest pressure. I am confused, since what I know water is incompressible fluid, which temperature should not affect pressure that much.

 

Please give some explanation on this.

Thanks so much!

[breizh]

Hi, 

Make sure you don't have air trapped with the water and if exposed to high temperature you may see the pressure rising .

 

I experienced such phenomena on a fire fighting network above ground in Thailand .

 

Hope this helps

 

Breizh  

Edited by breizh, 18 August 2013 - 10:10 PM.

[tika5828]

Thanks Breizh for your sharing!