The auto parts stores used to sell conversions, to make a
freon tank into air storage. Not sure anyone still has them.

I have a 3 gal compressor from HF, and someday will find a
way to put my 5 gal portable tank into the system. So the
compressor doesn't run as often.

Like Pete says, you can get a portable tank for what the
parts would cost.

http://www.harborfreight.com/cpi/cta...emnumber=65594
Thirty bucks, watch a while, and it will go on sale.

http://www.harborfreight.com/cpi/cta...emnumber=65595
Forty bucks, and 11 gal size.

Can you cut the top off, drill a couple holes, and make a
rolling flower planter?

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"Pete C." wrote in message
ster.com...

Nate Nagel wrote:

subject says all, I was given an old air compressor minus
the compressor
and motor - would like to use it as a portable compressed
air tank.
McMaster-Carr sells schraeder valve to NPT fittings for
cheap, but don't
I need some kind of pop off valve to make this legit?
Also will a
standard radiator petcock suffice as a drain valve or do I
need
something more substantial? I guess my lack of finding
the pop off
valve on a quick web search (maybe I'm not using the right
keywords?) is
keeping me from hacking this together.

For little more than the cost of the fittings, fill valve,
safety relief
valve, etc. to put it together, you can buy a complete new
portable air
tank from Harbor Freight in your choice of 5-10 gal sizes
and in either
steel or aluminum.