Posted by Stick welding on August 15, 2012 at 15:38:44 from (96.53.210.246):
In Reply to: Re: acetelyne torch posted by Walt Davies on August 15, 2012 at 13:54:42:
Wive's tale? There is a porous material inside an acetylene cylinder that is then filled with acetone. The acetone absorbs the acetylene gas so it is stable above 15 PSI. When filling an acetylene cylinder the amount of acetone is measured and then the appropriate weight of acetylene is added. The fill pressure is 50 PSI and it still takes a long time to fill. The maximum size of pipe for filling is 1/2" and it's double extra heavy pipe. When filling the cylinder is cooled with water. Why do think acetylene cylinders are so heavy? Have you ever noticed a black type liquid when using a rosebud? It's from withdrawing acetylene too fast and is the acetone. I toured a cylinder fill plant.
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