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pvc chemical resitance question

Posted: Mon Jul 14, 2008 7:46 pm
by singularity
now lets just say i wanted to store gasoline in pvc under pressure... how bad of an idea would that be?

the pvc is 3" and caped on both ends with a couple 1/4" threaded ports in it. the pvc tank would be pressurized with 40 to 60 psi of co2. i am aware gasoline eats away pvc but my question is more of how quickly does gas dissolve it? and if this is a flat out terrible idea can you suggest a liquid that is more flammable than denatured alcohol and rubbing alcohol yet does not eat away pvc? and btw propane has already been tested and although extremely cool it does not have the range i desire

Posted: Mon Jul 14, 2008 7:49 pm
by Solar
Had some paintball goo leave a strange rippled deformation pattern through the ABS barrel.

Posted: Mon Jul 14, 2008 7:52 pm
by CS

Posted: Tue Jul 15, 2008 8:51 pm
by singularity
very helpful, thank you

Posted: Tue Jul 15, 2008 8:56 pm
by MrCrowley
Hehe I can guess what this is for :P

Posted: Tue Jul 15, 2008 8:58 pm
by brogdenlaxmiddie
MrCrowley wrote:Hehe I can guess what this is for :P
Yes, and I think its something to do with what dragons can do :wink:

Posted: Tue Jul 15, 2008 9:00 pm
by Sticky_Tape
Gasp tell me tel me tell me tell me tell me tell me tell me.

Posted: Tue Jul 15, 2008 9:36 pm
by DYI
how bad of an idea would that be?
Well that depends: how close will you be to this pressure vessel? Because if it's being placed where I think it will be, the answer to your question is "very".

Think about it this way: (potentially weak pipe with poor failure characteristics + gasoline + ample amounts of fire and radiant heat) * strapped to your back = ?

Posted: Tue Jul 15, 2008 10:16 pm
by SpudFarm
what crowley?

Posted: Tue Jul 15, 2008 10:16 pm
by Killjoy
Think about it this way: (potentially weak pipe with poor failure characteristics + gasoline + ample amounts of fire and radiant heat) * strapped to your back = ?
Barbecue?

Edit: Where the hell did Crowley's post go?

Posted: Tue Jul 15, 2008 10:19 pm
by SpudFarm
i think he deleted his own post :) the power of a moderator!

Posted: Tue Jul 15, 2008 10:26 pm
by biggsauce
:P I have a similar project underway... :D

Have you thought of coating the inside of the tank with something? I haven't gotten around to this stuff, but I'm hopeful this will work
Either this stuff works, or I move to a metal tank... goodluck

Posted: Tue Jul 15, 2008 11:11 pm
by brogdenlaxmiddie
I vote metal tank. But find a way to ground it and get rid of static electricity.

Posted: Tue Jul 15, 2008 11:17 pm
by MrCrowley
Ground it to your wrist or something, like those computer wrist bands. You attach to the computer and your wrist while you work on them so you don't short circuit anything or something like that.

Posted: Tue Jul 15, 2008 11:18 pm
by kablooie
That would be cool if you could ground it by wearing metal cleats and having the tank connected with a wire to them. If that's how a ground works...

What about using one of those pretty cheap husky air tanks? Although I don't know how heavy they are.