On Mar 6, 6:45*pm, Tom Claffey wrote:
Pump???????
Are you sure you were getting Oxygen and not compressed
air????!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!*!
If so you might have real problems.
Tom

At 22:57 06 March 2009, Hellman wrote:



I fly a motorglider, but used Rod for oxygen when I landed there. It
was the only place I knew that could fill my bottle to its 3000 psi
limit, but it was wise to have lunch while his pump worked away,
seemingly one psi at a time and with a loud noise with each cycle of
the piston ( a couple of seconds per cycle if memory serves me). I
enjoyed my time at Bishop and Hangar One and will miss him.

Martin- Hide quoted text -

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It's a compressed air actuated piston pump that will deliver very high
pressure oxygen to YOUR cylinder from a not-so-high pressure supply
cylinder. I routinely get 2200 psi fills even when our supply bottle
is down to 400 psi. It's a very clever (if expensive and not quick)
device that uses shop air acting on a large piston which drives a
small piston pump to compress the oxygen. The shop air and oxygen
never touch each other.