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Anti-siphon sprinkler valve

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Anti-siphon sprinkler valve

Unread postAuthor: paaiyan » Fri May 04, 2007 3:26 pm

So far I've only built one cannon, my monster 8 1/2 foot combustion. My next project will be a pneumatic, because I want power. I am going to use a blowgun triggered sprinkler valve, but I'm not sure what kind yet. I see that some say anti-siphon and some don't. I've heard one person say that anti-siphon valves dump a tad slower, can anyone confirm this? Also, is there any difference in the modification proces between the two?
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Unread postAuthor: subterranean » Fri May 04, 2007 5:30 pm

well since this this is going to be your first pneumatic i can see why your choosing a modded sprinklervalve, but i must say you seem pretty knowledgable on the forum and i think you can handle a piston. to answer your question the process for modification is the same, all you have to do is mount it differently.
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Unread postAuthor: frankrede » Fri May 04, 2007 5:33 pm

I have modded anti siphons several ways to increase performance.
I would just add a elbow and a inline valve
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Unread postAuthor: paaiyan » Fri May 04, 2007 5:42 pm

I'll do a piston some other time. Right now I want to experiment with pneumatics, but I'm waiting on a piston for a while. I drew up this interesting idea for a piston at home and I keep looking at it trying to find inspiration on how to make it work. That'll be the next project.

Yea, if I seem to know a lot, it's just because I'm good with concepts. I'm good at understaning something before I ever even try it. You'd figure I'd do good in school because of that but...
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Unread postAuthor: keep_it_real » Fri May 04, 2007 5:44 pm

grades in school don't reflect anything about your intelligence. school SUCKS!
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Unread postAuthor: paaiyan » Fri May 04, 2007 5:47 pm

So I totally thought sprinkler valves were more expensive than they really are. I was thinking along the lines of 30 bucks or something, my Lowes has them for 18. This is a satisfying development.

Yes, school is the place of the devil. Especially high school. Though college isn't much better. I figured I'd get rid of a substantial amount of stupid people when I moved on to college, heck, there's even more than before!
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