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Random PVC pipe

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Random PVC pipe

Unread postAuthor: Rogue » Mon Nov 05, 2007 5:29 pm

Okay, I just was cruising around on my bike and saw a crapload of pipe. there was a 20' section of sch 40 pvc(1.5"dia)

and these smaller 4' section of:(what is says on the pipe)

PWEAGLE 1" IPS 200PSI@73F SDR21 PVC1120 ASTM D2241 (UL) LISTED PVC COLD WATER PIPE 92FJ/UL C(WHERE IT CUTS OFF)


i will go back later and get some of that sch 40 but is that second type of pipe any good?






thanks,
roguE
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Unread postAuthor: LikimysCrotchus5 » Mon Nov 05, 2007 5:33 pm

Well it has a pressure rating 200 PSI
I wish i could find pipe just randomly lying around.
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Unread postAuthor: Rogue » Mon Nov 05, 2007 5:41 pm

So would it be safe to use for a pneumatic chamber? a combustion chamber? 8)
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Unread postAuthor: Hailfire753 » Mon Nov 05, 2007 5:45 pm

Of course! Combustions only go up to about 30 psi, and most pneumatic compressors only go up to 150 psi max.

Great find, btw.
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Unread postAuthor: Rogue » Mon Nov 05, 2007 5:48 pm

you guys just made my day!!!!

*jumps in air, claps hands, yells Gay Pride*



hahahaha ^ JK!!!





edit*

has any1 ever made a combustion out of a single length of 1" pvc??


how well would it work??
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Unread postAuthor: BigGrib » Mon Nov 05, 2007 6:10 pm

Thats awesome Definatley a great find that SDR21 is great for barrels they perfectly fit golf balls, i'm looking for 2" sch 80 to sleeve mine with.
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Yea, that's definitely going to get you at least a tazer.

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Unread postAuthor: BC Pneumatics » Mon Nov 05, 2007 6:13 pm

Check again Sir Sgt Bubba Grib. The SDR 21 is 1" :(
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Unread postAuthor: sandman » Mon Nov 05, 2007 6:18 pm

BigGrib wrote:I'm looking for 2" sch 80 to sleeve mine with.

Its the opposite for me, i got my 2" sch 80 but i need my 1.5" SDR 21

id make sure that the pipe is not being used before you take it :wink:
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Unread postAuthor: Rogue » Mon Nov 05, 2007 6:24 pm

it is sandman


i think i am going to make a cloud with it. :D :D :D
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Unread postAuthor: SpudBlaster15 » Mon Nov 05, 2007 7:51 pm

Hailfire753 wrote:Combustions only go up to about 30 psi.


Actually, a combustion launcher using metered propane will generate chamber pressures in the range of 60psi.

Rogue, was the pipe placed in a location that would receive sunlight? Do you notice any indications that the pipe has become weathered (yellowed surface) and/or damaged (cracks, etc) by mishandling?
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Unread postAuthor: iknowmy3tables » Mon Nov 05, 2007 7:58 pm

I believe you can sleeve 1"sdr over 3/4"cpvc in case you wanted to make some cartridge ore breech loading paint ball gun
sdr21 is pretty rare I think, so its an alright find
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Unread postAuthor: Pete Zaria » Mon Nov 05, 2007 7:58 pm

I seem to remember a debate with BLB a long time ago in which we agreed that the theoretical maximum pressure developed by a metered propane launcher running an atmospheric mix is ~82psi. Though you won't see that unless conditions are just right. I'd be willing to bet my metered propane gun produces a fair bit more than 60psi on every shot though.

The pipe you mentioned is rated to 200psi, but has thin walls, so make sure you never drop it if it's pressurized. It's fine to use, though.

Remember, Schedule (Sch40, Sch80, etc...) is just a wall thickness and NOT a pressure rating - for it to be pressure rated, it needs to say NSF-PW (instead of NSF-DWV) and a pressure rating (such as the "200PSI@73F" on the pipe you have).

Peace,
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Unread postAuthor: iknowmy3tables » Mon Nov 05, 2007 8:01 pm

yeah thats advance propane metered guns metered those go pretty high, but a spray and pray is a diffrent story
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Unread postAuthor: jimmy101 » Tue Nov 06, 2007 10:34 am

Pete Zaria wrote:I seem to remember a debate with BLB a long time ago in which we agreed that the theoretical maximum pressure developed by a metered propane launcher running an atmospheric mix is ~82psi. Though you won't see that unless conditions are just right. I'd be willing to bet my metered propane gun produces a fair bit more than 60psi on every shot though.

In a closed chamber the theoretical maximum pressure is about 120 PSIG. So, that would be the maximum pressure that a standard 1X combustion gun might reach. To get that you would need metered fuel, a chamber fan and a high friction and/or mass and/or a jammed round.

A well built gun, with the proper ammo, might get to 80 PSIG but I kind of doubt it. 60 PSIG sounds a lot more reasonable.
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Unread postAuthor: Fnord » Tue Nov 06, 2007 10:49 am

120 psi is the theoretical limit with no heat loss to the chamber . It might be possible to get close, but not with a normal gun.


Anyway, yeah, go and grab some. You'll be paying tax dollars for it someday, so take what you can get :)

Maybe you could get a picture of the place, btw?
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