Latest questions about "valspeq"

we already use version ValSpeQ version 3.51 in our department. Is it necessary to uninstall it and replace with version 3.8 or 4. what is the advantages of new version.

I have downloaded the Valspeq software , but it didn't provide the drawing.

I am trying to run Valspeq. I have changed all defaults to metric, but when I try to size a valve, everything keeps coming up in Imperial.