Czar Gun Pneumatic BreechLoader

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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Juicey
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Tue May 08, 2007 2:30 pm

Nice cannon. You manage to find a store with the 1.5" Sprinkler or have to order it? I wish some of the supply stores around me would cary larger than 1".
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cb4289
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Sat May 12, 2007 9:31 pm

i quote Da Pneu Kid wrote:
That is a sweet cannon! I love the paintjob too. But... those bell reducers are DWV. since you're only taking it up to 40 psi, it's probly ok, but just don't take it higher than that


what are DWV valves
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Hotwired
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Sat May 12, 2007 10:03 pm

He didn't say DWV valves, he said DWV bell reducer.

DWV stands for Drain, Waste and Vent.

In short, it is not designed for pressurised use.
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hi
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Sat May 12, 2007 10:05 pm

i dont think that dwv valves exist.
"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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frankrede
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Sat May 12, 2007 10:48 pm

hi wrote:i dont think that dwv valves exist.
Yes they do. They are usually some type of sliding valve like on his. On my neighbors RV their sewage has them. I thought of getting some from a rv supply store and they are made for gravity flow shit and piss(Lol haha) not high pressure air.
Current project: Afghanistan deployment
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turbohacker
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Sat May 12, 2007 11:45 pm

You guys keep complaining about the dwv reducers when really the weakest point on the gun is that drainage valve. I wish those came pressure rated-drat :x Ehh cool gun, ive always wanted to use one of those valves
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frankrede
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Sun May 13, 2007 1:37 am

turbohacker wrote:You guys keep complaining about the dwv reducers when really the weakest point on the gun is that drainage valve. I wish those came pressure rated-drat :x Ehh cool gun, ive always wanted to use one of those valves
That valve is also after the valve and should receive little force on it.
The air will choose to leave the barrel before it blows that valve.
Come on!
Turbohacker!
Use your damn brain.
Current project: Afghanistan deployment
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