electrical conduit

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SpudFiles Forum Index » Pneumatic Cannon Discussion » electrical conduit

electrical conduit

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tntlly

Posted: 10/20/2006 23:30 PM Post subject: electrical conduit

Corporal

Joined: 01 Oct 2006
Posts: 72
125.57 Spud Bux

I know it isn't pressure rated, but I bought a big piece of the 2 1/2 inch conduit for tennis balls, and I have a lot left over. I was just wondering if anyone has ever pressure tested this stuff?...

SpudStuff

Posted: 10/20/2006 23:53 PM Post subject:

Major General

Joined: 10 Dec 2005
Posts: 1379
128.17 Spud Bux

The problem with the pipe is that it isn't manufauctured with the same process as pressure rated pipe. It is much more flexible that is why you can usually bend it with your bare hands. You should be able to use it for a barrel ONLY. Make sure you don't put too much stress on it my leaning it on things.

tntlly

Posted: 10/20/2006 23:57 PM Post subject:

Corporal

Joined: 01 Oct 2006
Posts: 72
125.57 Spud Bux

Yeah that's what I figured, I was just wondering if I figured wrong though. I guess I'll just have spare for future tennis ball barrels...

SpudStuff

Posted: 10/21/2006 0:14 AM Post subject:

Major General

Joined: 10 Dec 2005
Posts: 1379
128.17 Spud Bux

I would reccomend with all 2.5" Sch 40 barrels that you: Take a piece of 2 inch pipe, wrap the end in 1 layer of 220 grit sandpaper. Then sand the inside of the 2.5" pipe with a twisting motion until the pipe is slightly larger inside and smooth. If you want you can make it even smoother with 600, 800, than 1000 grit paper.

EDIT: Yes tennis balls are a VERY tight fit. I would reccomend wetting them otherwise they get burn marks on them from the friction.

Last edited by SpudStuff on 10/21/2006 0:23 AM; edited 1 time in total

tntlly

Posted: 10/21/2006 0:20 AM Post subject:

Corporal

Joined: 01 Oct 2006
Posts: 72
125.57 Spud Bux

Thanks, I don't have any tennis balls yet to try it, but I'm guessing it's a tight fit when you don't sand it?

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