I have Chinese valves where from nameplate I can get Cv @100% open & that its Equal%.
Now I generated a spreadsheet model which is fairly simple & then used 'Goal Seek' feature to iterate values such that I get stated Cv at 100% opening.
I am uploading procedure that I followed (this document also has a small video file)
I am also attaching spreadsheet file as well.

External server zip file: https://www.mediafire.com/file/8qhwt7riweby457/Characteristic+Curve+Generation.zip/file

Now how can I do this in SMATH Studio? I mean construct in such a way that I change one value such until I get required CV at 100% as well as each interval increment is equal percentage


Characteristic Curve Generation.zip (2,39 MiB) scaricato 480 volta(e).

ValveCv.pdf (76,19 KiB) scaricato 915 volta(e).
ValveCv.sm (13,89 KiB) scaricato 1375 volta(e).

Wrote

I have Chinese valves where from nameplate I can get Cv @100% open

If your valve would be Fisher Controls, you should be able
to reach the catalog page c/w cv/% opening + more valve data.
This document fits = % & quick opening.
As a separate Smath document, I have the Fisher valve sizing procedure,
including the pulp stock.
Cheers ... Jean.

Fisher.sm (34,21 KiB) scaricato 1425 volta(e).

Extremely thanks Razonar & Jean