Quote:
Originally Posted by Don Rotolo
Exactly: A tight seal is a requirement.
Also, how much air are you pushing? It needs to be about 4 times the volume (at least) of the PVC tube.
Lastly, with 90 PSI, consider that the shock loads may cause the pipe to shatter. Two ways to make it safe, first encase the bottom 2/3 of the pipe in a larger pipe (no matter the size as long as it fits over the inner pipe), so the larger pipe will catch any shrapnel, OR second wrap pliable tape (like electrical, duct, or fiberglass packing tape) in a 1/4" to 3/8" layer around the lower 1/2 of the pipe, that'll slow down the shrapnel to nonlethal speeds.
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well the volume of the barrel is about 80 in" squared. and there is definetely no chance of exploding pvc. no pvc is ever pressurized in my setup.
here is a sketch.
sorry about the size but there are 2 metal tanks that go through a valve and then to the barrel.
single tank with pressure gauge
the whole setup as it it now but that lone peice of pvc near the bottom is the tank inside its pvc casing through the valve to the barrel.
the inside of the barrel and the bulkhead where the air comes out of (yes the barrel screws off
makes it so much easier to carry around and put in more potato pellets)
-vivek