Buterfly Valves

[SpudStuff]

while i was at the flea market i bought a 1 inch butterfly valve for 5 dollars.
when i got home i installed it on my miny cannon.
it shot almost twice as powerful at the same pressure. i was amazed that it worked better than my sprinkler valve. i spent 40 bucks on that piece of crap

[Shrimphead]

Did you rig up some way to open the butterfly valve, or did you just open it by hand?

And why did you spen 40 bucks on a sprinkler valve?

[reaper613]

my guess is because of the way a butterfly works it let the pressure out much faster

[SpudStuff]

the valve is opened by hand al the air is out before the valve is even 1/2 way open.
I spent the money on the sprinkler valve because i have a gauge on it that records the highest pressure
the valve sort of opens itself after 1/2 way if theres any pressure left