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What is 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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What is a hammer valve?

Unread postAuthor: Gun Freak » Sat Mar 13, 2010 6:55 pm

I've searched time and time again, and found nothing on the anywhere on the web... or the wiki... Are they the same thing as a poppet valve? What is their function? BTW I have no idea what a poppet valve is either. Any good examples?
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Unread postAuthor: clemsonguy1125 » Sat Mar 13, 2010 6:58 pm

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Unread postAuthor: chinnerz » Sat Mar 13, 2010 7:13 pm

The name would suggest there being a hammer and a valve. so my guess would be that any valve where a hammer is used to open (or close) the valve would be called a hammer valve? as for a clear definition not sure buddy
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Unread postAuthor: Gun Freak » Sat Mar 13, 2010 7:25 pm

Dang that diagram is confusing... It seems like a spring loaded mechanism that triggers a sort of piston valve, am I close? :?
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Unread postAuthor: clemsonguy1125 » Sat Mar 13, 2010 7:34 pm

umm not really think of a blowgun where a hammer from a cap gun fires it
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Unread postAuthor: Marffy » Sat Mar 13, 2010 7:37 pm

just watch this for a while and you'll eventually1 figure it out. http://www.zdspb.com/media/tech/animations/spyder.gif
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Unread postAuthor: Gun Freak » Sat Mar 13, 2010 7:58 pm

So a blowgun uses a hammer valve?
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Unread postAuthor: clemsonguy1125 » Sat Mar 13, 2010 8:25 pm

Gun Freak wrote:So a blowgun uses a hammer valve?

you can or you can build one
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Unread postAuthor: POLAND_SPUD » Sat Mar 13, 2010 8:26 pm

So a blowgun uses a hammer valve
no but you can attach a hammer to it in order to turn it into a hammer valve
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Unread postAuthor: Gun Freak » Sat Mar 13, 2010 8:26 pm

You didn't really answer my question... Is there a hammer valve in a blowgun?
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Unread postAuthor: POLAND_SPUD » Sat Mar 13, 2010 8:35 pm

no... but you can turn it into a hammer valve.. just like quite a lot of other valves...

it's pretty much all about having a hammer... you can even turn a shrader valve into a hammer valve (if you hit the stem with something heavy while it's pressurised)
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Unread postAuthor: Gun Freak » Sat Mar 13, 2010 8:40 pm

Oh sorry POLAND SPUD I meant to say that to clemsonguy but you posted right before me.

OHH I get it now. Is it the same thing as a poppet valve?
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Unread postAuthor: POLAND_SPUD » Sat Mar 13, 2010 8:45 pm

nope... you can find an article that explains what the poppet valve is in my thread on DCV valves
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Unread postAuthor: Gun Freak » Sat Mar 13, 2010 8:51 pm

Oh ok thanks. I've seen that thread.
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Unread postAuthor: D_Hall » Sat Mar 13, 2010 9:54 pm

A hammer valve is basically a valve that is held closed very firmly by gas pressure. It is opened momentarily by hitting the valve with a weight (the hammer). The valve closes quickly; again due to the action of the gas pressure.

Hammer valves tend to be low flow devices but they excel at briefly opening very high pressure gas flows.
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