PVC DWV

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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killagorrila99
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Fri Jan 05, 2007 2:36 am

Ok lets get one thing clear, just so everyone (even flying salt) is sure.
Dwv=bad
PW=good.
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Hunter32
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Fri Jan 05, 2007 3:05 pm

it says Genova Coex Cellular Core PVC-DWV Pipe IPS SCH 40 ASTMF-891-04 70031F
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frankrede
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Fri Jan 05, 2007 6:28 pm

squeaks wrote:Remember, remember, remember, sch 40 only denotes the thickness!!! You must make sure it is pressure rated lest it blow up in your face. If it says nsf-pw on it then it's probably safe. If it says nsf-dwv then your gun won't work and you should use it as a combustion or something. Just as a side note, don't use bell reducers use bushings. Reducers aren't pressure rated but it's a common mistake so I'd just like to mention it.
Again DWV on pipe means nothing,
Current project: Afghanistan deployment
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meatballs
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Sun Apr 01, 2007 9:48 pm

Don't use anything that says cellular core. That means that before being extruded, thousands of tiny air bubbles were whipped into the plastic. this makes it lighter, but it also means it is not safe for pressure.
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