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What pipe for paintball barrels?

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What pipe for paintball barrels?

Unread postAuthor: djbizz1 » Tue Jun 19, 2007 1:40 pm

What size pipe do you need to shoot paintballs? I want to make a combustion type cannon that shoots paintballs so what size chambers and size pipe would i need? Sorry for the noob questions :oops: :oops: :cry: :wink:

(Topic renamed by Pete Zaria, please don't post in all caps :) )
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Unread postAuthor: spudthug » Tue Jun 19, 2007 1:47 pm

3/4 sch 80
3/4 cpvc
1/2 sdr 11

u obviously didnt search...
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Unread postAuthor: TurboSuper » Tue Jun 19, 2007 1:55 pm

If it were up to me, I would just use a 1.5" or 2" piep and scatter shoot them. Oh, and don't shoot them at people.
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Unread postAuthor: Jumpin Jehosaphat » Tue Jun 19, 2007 2:00 pm

spudthug wrote:u obviously didnt search...

Cool it youngin' new community members are a good thing. We don't need to make 'em feel stupid or scare them away. He already apologized besides, that's not the least valid question I've heard recently...
spudthug wrote:u blocked off the stock from the barrel right??and teh tee that the scope is on??

lol

Good luck on your cannon djbizz. Be careful not to cook/ ignite your paintballs.
Since you seem to be new an important thing to watch out for is if your pipe and fittings have DWV written on them or NSF-pw.
DWV is for drain applications, and is not pressure rated.
NSF-pw is pressure rated, and is safer.
You can get away with using DWV on a combustion cannon, but always keep safety in mind.
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Unread postAuthor: djbizz1 » Tue Jun 19, 2007 4:04 pm

TurboSuper wrote:If it were up to me, I would just use a 1.5" or 2" piep and scatter shoot them. Oh, and don't shoot them at people.


Thanks, I'm already in the process of building one with the 2" pipe thanks to rna_duelers he gave me a pretty cool specs on how to build a loud cannon. But i had so much fun building that one i couldn't wait to build a mini one that shoots paintballs. :lol:
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Unread postAuthor: djbizz1 » Tue Jun 19, 2007 4:11 pm

spudthug wrote:3/4 sch 80
3/4 cpvc
1/2 sdr 11

u obviously didnt search...


Ok spudthug,

Now your gonna have to tell me what those are. At this point I only know ABS and PVC.

3/4 sch 80 = Is this some kind of pipe? :?
3/4 cpvc = What's the c? I only know the pvc part :oops:
1/2 sdr 11 = What's sdr? :cry:

Pictures or sketch would be helpful. Thanks...

:help: :help: :help: :help: :help: :help: :help: :help:
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Last edited by djbizz1 on Tue Jun 19, 2007 4:17 pm, edited 1 time in total.

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Unread postAuthor: djbizz1 » Tue Jun 19, 2007 4:14 pm

Jumpin Jehosaphat wrote:
spudthug wrote:u obviously didnt search...

Cool it youngin' new community members are a good thing. We don't need to make 'em feel stupid or scare them away. He already apologized besides, that's not the least valid question I've heard recently...
spudthug wrote:u blocked off the stock from the barrel right??and teh tee that the scope is on??

lol

Good luck on your cannon djbizz. Be careful not to cook/ ignite your paintballs.
Since you seem to be new an important thing to watch out for is if your pipe and fittings have DWV written on them or NSF-pw.
DWV is for drain applications, and is not pressure rated.
NSF-pw is pressure rated, and is safer.
You can get away with using DWV on a combustion cannon, but always keep safety in mind.



Thanks Jumpin Jehosaphat! Can i make it out of a pvc pipe though?
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Unread postAuthor: Gepard » Tue Jun 19, 2007 4:20 pm

SCH80 stands for schedule 80 and is PVC pipe
CPVC is Chlorinated Polyvinyl Chloride pipe
SDR is a High-density polyethylene pipe

HTH,

Michael
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Unread postAuthor: Velocity » Tue Jun 19, 2007 4:27 pm

Actually, SDR-13.5 (yes, SDR-13.5, not SDR-11) is a size of PVC pipe. Its just like SCH 40, SCH 80, etc. This type of pipe is rated to 315 PSI, whether you get it in 1/2" size or any other size as well (I don't actually think any other size of SDR-13.5 exists though). SDR stands for Standard Dimension Ratio.
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Unread postAuthor: Gepard » Tue Jun 19, 2007 4:33 pm

SDR-11 is HDPE pipe....you can't get SDR-11 made out of PVC hence your comment:

"yes, SDR-13.5, not SDR-11"

Michael
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Unread postAuthor: spudthug » Tue Jun 19, 2007 4:39 pm

SDR is a High-density polyethylene pipe


sdr is a wall thickness not a kind of pipe
SDR-11 is HDPE pipe....you can't get SDR-11 made out of PVC hence your comment:


sdr again is a wall thickness...and yes u can get sdr 11 just not in half inch...i ment sdr 13.5....i made a mistake...

u may want to get better facts before u make a fool of yourself :wink:

forgot to add that u cant get other sizes of sdr to...they make sch 40-160 maybe higher but below sch 40 is sdr...sch and sdr are both thickness ratings...

oh and btw cpvc is basically water pipe and is rated to 100 psi..it is a bit wobly so u might need to sleeve it..

cpvc is sdr 11 i think...
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Last edited by spudthug on Tue Jun 19, 2007 4:40 pm, edited 1 time in total.
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Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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Unread postAuthor: Velocity » Tue Jun 19, 2007 4:39 pm

Gepard: You are correct that SDR-11 is HDPE pipe... though, I really think spudthug made a mistake is saying 11 instead of 13.5... I could be wrong though.
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Unread postAuthor: spudthug » Tue Jun 19, 2007 4:41 pm

heh rmich i bet ur gonna have an edit when im done posting this... read my above psot..
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Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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Unread postAuthor: Gepard » Tue Jun 19, 2007 5:07 pm

Well I looked on Google before posting and I couldn't find *any* SDR-11 pipe that was PVC only HDPE

The second post I didn't say SDR was a material I did say that SDR-11 was made out of HDPE and I've yet to find evidence to the contrary.....

Michael
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Unread postAuthor: TwitchTheAussie » Tue Jun 19, 2007 7:46 pm

16mm inner diameter metal pipe mate. Now just get her finished. :P
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