My piston, hope it helps you!

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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PneuJose
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Sun Apr 22, 2007 12:17 am

Hey guys, all i got to say is that i was searching my dads hardware store trying to find something that would fit on 1.5inch pipe for a 1.5n piston valve and i luckily found a Karman Rubber Vibro Insulator. Pics

ill post my gun after some shots ^^ to get damage pics.
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well the piston has a conical shape, i chose the conical one because its a little bit lighter than the cylindrical ones, the outer diameter is 1.5inch (exact!) and when it reaches 30psi starts to fill the chamber.
well the piston has a conical shape, i chose the conical one because its a little bit lighter than the cylindrical ones, the outer diameter is 1.5inch (exact!) and when it reaches 30psi starts to fill the chamber.
vibro insulator.gif (5.41 KiB) Viewed 2154 times
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hi
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Sun Apr 22, 2007 12:21 am

this fits in the pipe, or it seals against the pipe. eather way, its a good find.
"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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PneuJose
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Sun Apr 22, 2007 12:24 am

fits in the pipe, AND seal my barrel realy good cause its made of neoprene
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hi
Staff Sergeant 2
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Sun Apr 22, 2007 12:26 am

how much do they cost? what is your barrel? is it commonly availible?
"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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PneuJose
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Sun Apr 22, 2007 12:34 am

i dont know the cost....sorry i just took it was laying around. I dont think it would be commonly availble, i think u should order it from the internet. my barrel is 1'' pvc.
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rad14701
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Sun Apr 22, 2007 9:14 am

I was thinking about trying a similar hardware store gadget for sealing... I had also considered using a tapered faucet washer for a 1/2 inch copper barrel...
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noname
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Sun Apr 22, 2007 1:30 pm

Looks like a plug for a chemistry flask, those would work too if you sealed the hole in the middle.
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pyromaniac
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Sun Apr 22, 2007 1:34 pm

it kinda looks like that with a sealed hole already.
:pottytrain3:
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