Can GPH Be Converted to PSI for Leak Testing?

[CaityAnn]

How do I convert gph to psi?...

Here is the deal, we are testing a 24" pipe for leaks doing a pressure test. the pressure at the pipe in question is 185 psi, and it lost 4 psi. I have a chart showing the allowable loss in GPH, but I don't know how to convert to PSI. Since this was a test, the pipe was plugged on both ends, therefore there was no flow.

Any help appreciated...

 

[russ_watters]

How long did it take to lose 4psi?

 

[Q_Goest]

You also need the pipe volume.

 

[zgozvrm]

...the pressure at the pipe in question is 185 psi...the pipe was plugged on both ends, therefore there was no flow.

That should answer your question. You can have pressure without flow, so how can they be related?