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found some pvc is it safe?

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found some pvc is it safe?

Unread postAuthor: squishie » Wed Apr 28, 2010 4:36 am

i recently found some pvc in my shed which im planing to make a combustion cannon with only im not sure the psi rating of the pipe's.

they are both 1m long, one is 65mm the other is about 100mm and i cant find any markings that give a clear indication of there rating.

can some one please explain what im looking for that will tell me the rating.
if it helps the pipe was purchased in Australia.
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Unread postAuthor: jackssmirkingrevenge » Wed Apr 28, 2010 4:41 am

What's the wall thickness like? And if there are any markings, post them, it might not mean anything to you but maybe someone can translate ;)

PN10 for example means it can take 10x14.7psi ----> 147 psi
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Unread postAuthor: squishie » Wed Apr 28, 2010 4:52 am

hm kk
some of the marking have rubbed of but this is what i can make out

the 65mm has: LIC1010 as/nzs 1260 SL15 080511 11:09
the 100mm one has: Dwvlool Dn100 Sc Snb 090514 Lipmwa as/nzs 1260 wnka 21515 15:18
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Unread postAuthor: jackssmirkingrevenge » Wed Apr 28, 2010 5:42 am

DWV means it's probably not pressure rated, however this isn't as critical for combusions. Have you measure the wall thickness?
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Unread postAuthor: squishie » Wed Apr 28, 2010 5:47 am

there both 3/4mm thick which will probably be fine im thinking
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Unread postAuthor: MrCrowley » Wed Apr 28, 2010 6:47 am

AS/NZS 1260 means it is DWV and DWV only. As JSR said, this will be fine for a basic combustion. There is another type of DWV called spouting, which you want to stay away from. This is the really thin pipe, you can almost break it with your hands. It is the stuff you find on gutters, and you know how thin gutters are.

Pressure rated fittings are quite expensive in NZ and Aussie, especially in large diameters like 100mm.
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Unread postAuthor: JDP12 » Wed Apr 28, 2010 7:16 am

Wait a wall thickness of 3/4 of a millimeter? That's pretty thin PVC.
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Unread postAuthor: squishie » Wed Apr 28, 2010 8:26 am

um no i could only use a crappy ruler so its 3 OR 4 mm 3/4th of a mm would be rather lolsy pipe
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