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modified sprinkler valve or piston valve

A place to ask general spud cannon related questions.
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modified sprinkler valve or piston valve

Unread postAuthor: aussiecyclist » Thu Sep 29, 2005 8:00 am

just wondering if anyone could shed some light on a topic i been wondering about

would a sprinkler valve or piston valve give more power?

if the same PSI and barrell and chamber volumes were the same

cheers
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Unread postAuthor: bubblebathman » Thu Sep 29, 2005 12:13 pm

a sprinkler vavule would be beter :twisted:
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Unread postAuthor: spudshot » Thu Sep 29, 2005 1:41 pm

no it wouldnt piston valves are much more powerful
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Unread postAuthor: boilingleadbath » Thu Sep 29, 2005 2:58 pm

I'd have to say "it depends" - with a barrel diameter lower than .75" or .6", a 1" spirinkler valve will give you better preformance. The reason for this is that our valves have a flow of about 40-50% efishency times the inner diameter of the pipe, and the sprinker valves have a flow of about 30% times 1". Thus, to figure out the diameter that gives you the same flow as a 1" sprinkler:
1*.3 = X*.4
.3 = X*.4
.3/.4 = X
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