Piping wall thickness calculation during hydrotest condition

[Sean_Wei]

Hi，Forums

Piping wall thickness calculation according ASME B31.3 is using the design pressure of pipeline，while the hydrotest pressure is at least 1.5×design pressure.

The question is why B31.3 doesn't require to do the calculation check under hydrostatic test pressure？

 

[Trestala]

The purpose of hydrostatic test is to verify the strength of your piping if it can handle the design pressure safely by using a pressure above it.

 

[goutam_freelance]

Refer the thread
https://www.eng-tips.com/threads/hydrotest-clarification.528306/