Vaccum test

[lolo78]

Hello,
I have a steel pipe line with material A106Gr.B.
I use the ASME code B31.3
The pipe line conditions are -0.7b at 72°C. The Ø of the line is 28".
Is there somewhere a standard to test this line ?
I know how to fill a table to specify a hydrotest pressure but not for vaccum line !!
Do we wait the start-up of the installation to know if the pipe leaks ??

Cordially
Laurent

 

[jte]

Laurent-

You'll reach a wider audience next time at either forum292 or forum378 (but not both!).

I'd take a look at B31.3 345.2.4. Seems pretty straightforward to me...

jt