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a hammer 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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a hammer valve ??

Unread postAuthor: far_cry » Mon Sep 22, 2008 11:34 am

will, i think about biulding a rifle with hammer valve because i am tired to pump the champer evrey shoot
so i have some question to ask
there is a rifle called airforce talon that have this mechanism the question is , in 700 psi hpa this hammer valve open time is under 0.5 seconde ,the air that come out can take the projectile the same speed that can full 60 cubic cm 700 psi champer ?
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Unread postAuthor: jackssmirkingrevenge » Mon Sep 22, 2008 11:46 am

I think you'll find that the chamber pressure used by the talon is more in the region of 3,000-1,500 psi.
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Unread postAuthor: far_cry » Mon Sep 22, 2008 11:50 am

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Unread postAuthor: far_cry » Mon Sep 22, 2008 10:44 pm

any one ?? :shock:
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Unread postAuthor: MrCrowley » Mon Sep 22, 2008 11:23 pm

I have no idea what the hell you are asking. Try to use proper grammar and you'll find people generally tend to reply more.
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Unread postAuthor: Gippeto » Mon Sep 22, 2008 11:58 pm

No, you will not get as good of performance from a hammer valve. (I did some quick modeling in ggdt.)

You will however, (depending on your actual launcher specs) get 5 or 6 shots of about 80% what the piston valve would give you.

This will be a much more difficult piece to get working well.

Perhaps, a piston valve with a smaller chamber, separated from a larger chamber with a ball valve?

This would give simpler construction, while still giving multiple shots.

It has been discussed here before.

Your english IS progressing, keep working on it. :)
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Unread postAuthor: far_cry » Tue Sep 23, 2008 8:01 am

ok thank you colonel
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Unread postAuthor: sniper hero » Tue Sep 23, 2008 10:01 am

I love the talon disign
can anyone make/find a drawing of the valve( inclusive the working of this trigger)

sorry for the a bit of topic question :)
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Re: a hammer valve ??

Unread postAuthor: Ragnarok » Tue Sep 23, 2008 10:13 am

MrCrowley wrote:I have no idea what the hell you are asking. Try to use proper grammar and you'll find people generally tend to reply more.

This is my best guess at what's being asked...

far_cry wrote:I am thinking about building a rifle with hammer valve because I am tired of having to pump the chamber every shot, so i have a question to ask.
There is an air rifle called an Airforce talon that has the same mechanism. The question is with 700 psi hpa and this hammer valve with an opening time under 0.5 milliseconds, will the air that comes out accelerate the projectile to the same speed as using a full 60 cubic cm 700 psi chamber? (Rag: I assume with a piston valve?)


To which I think Gippeto has already given a decent answer.
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Unread postAuthor: jackssmirkingrevenge » Tue Sep 23, 2008 11:16 am

sniper hero wrote:I love the talon disign
can anyone make/find a drawing of the valve( inclusive the working of this trigger)


http://alpinetek.netfirms.com/guns/talon/stealthtuning/
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