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A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel (the engine of the rocket) is constructed from thin plastic or other non metallic materials (usually a used plastic soft drink bottle) weighing 1,500 grams or less. The water is forced out by compressed air. It is an example of Newton's third law of motion.

Copper vs PVC

Discussion about Compressors, hose, pipes, fittings, launchers, release mechanisms, and launch tubes.
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Flash
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Copper vs PVC

Post by Flash » Mon May 27, 2013 3:41 pm

Just checking to see if there is an advantage in using copper vs PVC on supply line construction? I know PVC is easier to work with, that is for sure.

Thanks,
Flash


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Re: Copper vs PVC

Post by bugwubber » Mon May 27, 2013 9:59 pm

Well, technically, PVC isn't rated for holding pressurized air. Its strength and shock resistance can drop rapidly in hot or cold environments. Hooking up to a high pressure air tank? PVC is out.

Of course PVC certainly works well for unreinforced soda bottle rockets and a typical manual pump or 150psi air compressor.

But... if you are inclined to build reinforced high pressure rockets instead of just the standard soda bottles, it'd make sense to use pipe rated for air pressure.

(my launchers are all PVC since I don't plan on venturing into high pressure any time soon)

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Re: Copper vs PVC

Post by Flash » Tue May 28, 2013 5:46 am

Thank you again, I'm with you on that point of, well we can say low pressure of around 80 to 100 psi for now.
PVC it is.


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Re: Copper vs PVC

Post by bugwubber » Tue May 28, 2013 8:06 am

Flash wrote:Thank you again, I'm with you on that point of, well we can say low pressure of around 80 to 100 psi for now.
PVC it is.
You're welcome. also be sure you get schedule 40.


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Re: Copper vs PVC

Post by Flash » Tue May 28, 2013 11:43 am

What is schedule 40 and how do I get it?
Thanks!


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Re: Copper vs PVC

Post by Flash » Tue May 28, 2013 11:46 am

I understand now what schedule 40 is.
Thanks!!!


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Re: Copper vs PVC

Post by bugwubber » Tue May 28, 2013 2:03 pm

Flash wrote:I understand now what schedule 40 is.
Thanks!!!
yeah the less explodey PVC. :-)


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