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Don't know how much help I will be here, but where I work we use argon as the gas surrounding wires when we weld them into thermocouples. Anyway, we have a contraption that was supplied by an outside contractor to pump argon into the bottles used in the welder. It has a haskel that is driven by shop air (up to about 60 or so psi) to compress the argon from a storage bottle up to 5000 psi. I fill my 13 cu ft aluminum cylinder to 3000 psi for use diving. I just filled from a storage bottle that was down to 600 psi so it seems to work nicely, very little waste. Bruce Partridge wrote: > > I have a similar question. We are trying to find a better way to fill > argon bottles. We have been buying it in 2600 psi tanks. We want to then > get it into smaller bottles to take on the boat. > > At first we thought we could buy high pressure argon, but it is regulated > to come out at 800 psi. We haven't got the final answer yet, but it > appears that we can get a special regulator to go into the HP port of the > cylinder valve/regulator. BTW, these tanks are very heavy to transport. > > Then we thought of using the compressor to put the argon into a couple of > HP steel tanks, and then transfill on the boat. > > If anyone has a good solution or experience with pumping argon through a > compressor, please let me know. -- Dave Mabry dmabry@mi*.co* Great Lakes Maritime Institute Underwater Research Team NACD #2093 NSS-CDS #42872 -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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