Dan003400's 7th Pneumatic Gun

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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squeaks
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Wed Dec 20, 2006 1:15 am

I'm not dumb insomniac, I know barrel sealers can have o-rings. I have one right now with o-rings. I just was saying that since it didn't it had to be a barrel sealer. If it has o-rings it could be either or, but a chamber sealing one NEEDS o-rings.
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noname
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Wed Dec 20, 2006 5:37 pm

A chamber sealing piston doesn't necessarily need O-rings, there just haven't been any without them. :lol:
squeaks
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Wed Dec 20, 2006 5:46 pm

Okay noname, if your so smart, how are you going to make a chamber sealing piston without o-rings. Don't be stupid, it's the only way to separate the pilot from the barrel.
"Nine out of ten Americans agree that out of ten Americans one will always disagree with the other nine."
-Collin Mockery
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Insomniac
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Wed Dec 20, 2006 5:51 pm

I wasn't saying you were dumb squeaks, I just misunderstood what you said. What you said was right, I just didn't read carefully enough.....and I suppose that makes ME the dumb one lol :lol:
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MrCrowley
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Wed Dec 20, 2006 7:35 pm

noname wrote:A chamber sealing piston doesn't necessarily need O-rings, there just haven't been any without them. :lol:
:lol: that made me crack up,but you are right, we just need someone to invest time and moeny into a chamber sealer without O-rings :P
squeaks
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Wed Dec 20, 2006 7:38 pm

Might I reiterate, HOW!!! You can't keep the pressure back without 'em.
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MrCrowley
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Wed Dec 20, 2006 8:17 pm

I dunno, why don't you find out,it was a joke.
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noname
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Thu Dec 21, 2006 12:15 am

Seriously man, I could make one to hold like 5 psi with some sheet rubber and a barrel sealer. :lol:
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turbohacker
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Thu Dec 21, 2006 12:53 am

if the pison is a tight enough fit it shouldn't need o rings just some good thick greese to help seal and lubricate
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sgort87
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Thu Dec 21, 2006 4:23 am

No. Doesn't work that way.

PVC pipe is not perfect. It has many bumps on the inside and you will never make a piston that can seal on the inside and is able to move without o-rings.

Honestly, is it all that hard to stick some o-rings on there?!
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MrCrowley
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Thu Dec 21, 2006 5:32 am

well....If you don't have a lathe/table saw etc and have no time to use a file,you shouldn't build a chamber sealer :lol:
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Dan003400
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Sat Dec 23, 2006 3:49 pm

Who is Mr. Bolton?
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Dan003400
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Sun Dec 24, 2006 5:11 am

who is mr bolton?
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rna_duelers
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Sun Dec 24, 2006 6:59 am

Wait a QEV is a chamber sealing piston valve and it doesnt have a O-ring,or is it barrel sealing?Im not sure but if it is then there is your answer :wink: .
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nicholai
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Sun Dec 24, 2006 11:18 am

its a barrel sealer without o-rings, Its actually more like a diaphragm valve but the phragm is like a flexible cone with a flat spot as a sealing face
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