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ball valve vs. 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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ball valve vs. sprinkler valve

Unread postAuthor: pmalone » Mon Jul 21, 2008 10:43 am

Which would be more effective and have more air flow: a 1.5" ball valve or 1" modded sprinkler valve?

Thanks in advance
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Unread postAuthor: paaiyan » Mon Jul 21, 2008 10:48 am

The ball valve may have a higher air flow, but the sprinkler valve will be more effective. The sprinkler valve opens nearly instantaneously and so there will be a much more efficient use of air.
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Unread postAuthor: starman » Mon Jul 21, 2008 10:59 am

paaiyan wrote:The ball valve may have a higher air flow, but the sprinkler valve will be more effective. The sprinkler valve opens nearly instantaneously and so there will be a much more efficient use of air.


I concur. The 1.5" ball valve is a fairly hefty beast thus making it even slower to actuate manually.
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Unread postAuthor: newbmatic » Mon Jul 21, 2008 11:20 am

ball valve may have better air flow and is probably cheaper , but releases way to slow and especially if you're going to use a 1.5" one. the sprinkler valve may be a little more costly and may not have as great air flow, but it opens extremely quick.
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Unread postAuthor: paaiyan » Mon Jul 21, 2008 11:22 am

Sprinkler valves aren't that expensive anyway. Heck, look at the piston designs on here as well, they're extremely fast if made correctly, very cheap, and much smaller.
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Unread postAuthor: Biopyro » Mon Jul 21, 2008 11:30 am

Depends what you mean by "effective" really. If you have a very long barrel 1.5m+ then yeah a BV might not be so bad, but otherwise definately go for a sprinkler valve.
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Unread postAuthor: iknowmy3tables » Mon Jul 21, 2008 12:20 pm

well in an oversized system with a giant chammber, and super greased valve, a BV is much better however i you like guns you can hold while firing a sprinkler valve is better
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Unread postAuthor: paaiyan » Mon Jul 21, 2008 12:22 pm

I still say a piston is about as good as it gets.
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Unread postAuthor: Biopyro » Mon Jul 21, 2008 12:34 pm

A piston is much better, but beariung in mind the OP has just one post, they may not have the budget or skill necessary
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Unread postAuthor: paaiyan » Mon Jul 21, 2008 12:50 pm

Budget? Pistons can be the cheapest kind.
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Unread postAuthor: Biopyro » Mon Jul 21, 2008 1:18 pm

If you can't make one, then you have to buy one, I believe a 1" stinger valve is about $45, whereas a sprinkler is about $10, I guess if he had the option he would have asked about that too.
@pmalone: do you feel confident enough to build a piston valve?
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Unread postAuthor: paaiyan » Mon Jul 21, 2008 1:19 pm

Maybe he didn't know it was an option. I think he should take a look at pistons, they'll take some practice to get a process down right, but I think it'd be more satisfying.
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Unread postAuthor: TurboSuper » Mon Jul 21, 2008 1:33 pm

The problem is that your projectile will be long gone by the time the BV opens to max porting. Sprinkler valves all the way.
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Unread postAuthor: sirspuddest » Mon Jul 21, 2008 4:22 pm

Sprinkler valve wins, always.

After using a ball valve gun for about a month, I just ditched it. It was hard to turn (bruised my hand), slow, ineffeicient, expensive (a good sized ball valve is easily almost as expensive as a sprinkler valve), and very difficult and awkward to use.

Ideally, I would just use a QEV or piston, though.
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Unread postAuthor: pmalone » Mon Jul 21, 2008 9:53 pm

thanks for all the help

how much of an advantage is there to using a piston valve over a sprinkler valve? and what is a good tutorial to follow to make one
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