Butterfly valves part II

[David Piper]

If thats my post of the Fisher bfy Cv vs deg rotation, must use formula for
compressible gas.  Cv is universal flow factor defined = 1 for 1 gpm water
at 1 psi press drop.  Cg is Fisher's coeff for compressibles.  Will post
formulae on Tuesday from work.




At 11:14 PM 5/28/99 -0400, you wrote:
>
>This is embarrassing, Doc been dancing around all night hoping someone would
>send him a clue, but it hasn't happened (tha clue musk oil, stinks)
>Anyway how do you use this chart?.
>ie on a 2" pipe at 30d, how do you figure how much air is passing?
>Grumpy
>
>
>
>| I scanned it and posted to efi332.eng.ohio-state.edu/incoming
>| as "flowbrws.jpg" and "flow.jpg".  The first is viewable and
>| printable with a web browser. The second is a better quality
>| one, but requires a nicer program (like Photoshop) to print on
>| a single page.
> later,
> -greg
>

TurboDave