Temperature dropage of compressed air

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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hkrivell
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I'm having problems with Co2 and nitrogen compromising the durability of PVC 40 and 80.

Does anyone know of a compressed air that does not cause a massive temperature drop besides hand pumping the chamber?
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origin unknown
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I am not completely sure, but I think helium might be the gas you are looking for because it warms up as it expands.
Last edited by origin unknown on Mon Jul 30, 2007 2:28 pm, edited 1 time in total.
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paintballuh
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you could always use an air compressor, or get one of those big tanks that you fill with an air compressor that people use to power pneumatic tools/blow guns

EDIT: nitrogen doesnt experience a temperature change when compressed. it may heat up a little, but not that much, i play xball, i should know :P
Last edited by paintballuh on Mon Jul 30, 2007 2:31 pm, edited 1 time in total.
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iPaintball
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Air compressors work just fine.

paintballuh, is that an Ion in your pic?
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CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
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hkrivell
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one of my friends uses Co2 and Propane to fill his chamber. His chamber shattered like glass when he dropped it. is there anything else besides overpressure that would cause a chamber to shatter?

The chamber was unfilled when it shattered.
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potatoflinger
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Co2 can make pvc brittle (pvc gets brittle when it gets cold).
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frankrede
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hkrivell wrote:I'm having problems with Co2 and nitrogen compromising the durability of PVC 40 and 80.

Does anyone know of a compressed air that does not cause a massive temperature drop besides hand pumping the chamber?
Make sure your bottle is facing upright to prevent liquid co2 from entering your chamber, I have seen co2 used without fail in pvc before, and inject slowly, 10 psi every 3 seconds should help keep the temperature from getting too low too quick.
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hkrivell
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paintballuh wrote:EDIT: nitrogen doesnt experience a temperature change when compressed. it may heat up a little, but not that much, i play xball, i should know :P
What about when expanding or when being transfered from nitro tank to chamber?
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