High pressure valve

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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Brian the brain
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piston valve gets you all round best performance and flow.
Pretty basic to build too.

and once they are built, you are done, inlike with burst discs.

You would not want a burst disc on a 2" at 500 psi, trust me
even if you could find a suited material.
You need ABSOLUTE control.
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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DYI
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You would not want a burst disc on a 2" at 500 psi, trust me
even if you could find a suited material.
You need ABSOLUTE control
It strikes me as funny that you just described my current setup exactly. As long as the disks are calibrated well enough, built consistently, and you know the burst pressure, it is quite feasible.
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Brian the brain
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So to make it feasable, you will need to calibrate your burst disc, build consistenlty and accurately know your burst pressure??

Wow...that does sound...quite...ehm yeah...


Go for the piston valve, buddy...Safer, straight to the point and easier to get it right.
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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pizlo
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Agreed, jack you have more knowledge, common sense and, resources than most here.
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DYI
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I didn't say that a TBD valve was practical, only that it was possible. I don't really like them that much myself...

And this may be a stupid question, but which Jack are you referring to Pizlo? Because JSR never posted on this thread.
Last edited by DYI on Thu Mar 20, 2008 8:05 pm, edited 1 time in total.
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bigbob12345
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DYI wrote: I don't really like it that much myself...
I dont understand some people
Because Im lovin it
Image

Sorry for this pointless post
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Hydra
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Get a triggered burst disk. look it up on the wiki, they use a needle to pop it.
Otherwise use a piston valve like everyone else said. Make it out of something hard.. Like steel or have a good backing. I mean really good. Because 500PSI of force slamming back a piston made of solid, heavy steel must hurt...
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