Frickin Awesome Valve

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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ammosmoke
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Wed Oct 31, 2007 5:25 pm

I don't know about you guys, but I think this is a pretty frickin awesome valve!!!

Frickin awesome valve

Maybe perhaps it could be modded to make a valve of Godliness?
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Wed Oct 31, 2007 5:29 pm

A big check valve?
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jrrdw
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Wed Oct 31, 2007 5:31 pm

I wonder where she stoled that from.
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psycix
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Wed Oct 31, 2007 5:38 pm

I dont think it would be a good valve for a cannon.
Its slow-opening dont you think?
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ammosmoke
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Wed Oct 31, 2007 5:39 pm

Ah yes, it is a check valve, but it probable could have a tab put in front of the gate to keep it from opening. Thread in some sort of thing, turn it, and BAM! it opens.
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potatoflinger
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Wed Oct 31, 2007 5:42 pm

A four inch valve would be sick!
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benstern
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Wed Oct 31, 2007 5:44 pm

It's says it's 250 pounds, but he's holding it with one hand in the picture.
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ammosmoke
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Wed Oct 31, 2007 5:47 pm

On the ebay thing it says that it actually weight 14lbs. I wonder if the 250 is referring to psi?
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jrrdw
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Wed Oct 31, 2007 7:03 pm

ammosmoke wrote:On the ebay thing it says that it actually weight 14lbs. I wonder if the 250 is referring to psi?
When it has water in it.
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veginator
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Wed Oct 31, 2007 7:28 pm

jrrdw wrote:
ammosmoke wrote:On the ebay thing it says that it actually weight 14lbs. I wonder if the 250 is referring to psi?
When it has water in it.
That would be able to handle insane pressures. you should definetly try it.
darkmilk
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Wed Oct 31, 2007 11:47 pm

veginator wrote:
jrrdw wrote:
ammosmoke wrote:On the ebay thing it says that it actually weight 14lbs. I wonder if the 250 is referring to psi?
When it has water in it.
That would be able to handle insane pressures. you should definetly try it.

it doesnt mater if its air or water, the pressure is still the same.
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Thu Nov 01, 2007 12:42 am

That would be the most useless addition to any spudgun i think. It is just a big heavy checkvalve to stop water flowing backwards in large industrial applications. I make flapper valves (another term for it) and they suck in general.
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mark.f
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Thu Nov 01, 2007 5:58 am

I think that rigging it to open after a stop is removed would be pretty impractical, because:

1.) You would have to have a pretty strong stop, especially if there is only one.

2.) When securing the stop into place, you would have to push the valve in an equal force to what it will be put under during pressurization, otherwise it may leak. In other words, you would have to press the flapper against the sealing face on the inside with 400pi (~1200) pounds of force before locking the thing in place, if you are planning on using the cannon at 100 PSI.

3.) Any stop you use has the weakness of getting smaller as you retract it, which will most probably cause it to break. Depending on how thick and what material, this could damage the valve as well.
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spudkilla
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Thu Nov 01, 2007 7:06 am

Why not have a solenoid that comes into the housing and retracts letting the air pass......
Why do I try to make a relevant post?
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Hotwired
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Thu Nov 01, 2007 7:50 am

A solenoid that can deal with the force acting on a 4" hinged disk?
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