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12-19-2010, 07:42 AM
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Join Date: Jun 2010
Location: Greenwood, IN
Posts: 31
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Med O2 cylinder vs Aviation containers
Anyone know what the difference is between the small o2 container for medical vs the aviation pma's?
Both are pressure tested in the same manner to the same pressures.
What are all of you using.
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12-19-2010, 08:05 AM
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Join Date: Nov 2009
Location: Heidelberg, Germany
Posts: 182
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In my glider I have a medical bottle with a Mountain High regulator (O2D1).
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Hendrik
Club-Libelle: flying
RV-8: on hold (new job  , new home , no workshop (yet)  )
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12-19-2010, 09:57 AM
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Join Date: Mar 2005
Location: Bellevue, NE
Posts: 686
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Medical bottle for me.
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12-19-2010, 10:20 AM
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Join Date: Oct 2009
Location: Victoria, BC, Canada
Posts: 3,926
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The difference is the price.
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Rob Prior
1996 RV-6 "Tweety" C-FRBP (formerly N196RV)
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12-19-2010, 10:31 AM
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Join Date: Mar 2008
Location: Seattle
Posts: 1,412
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The medical bottle has a square post top with the valve stem sticking out the top.
The regulator is set down over the post and has a clamp screw that pulls it sideways into the seal on the side of the post.
It is a little bit heavier than the aviation style which is straight off the top of the bottle.
The medical regulator is adjustable, in leters per minute. the ajustment changes the outlet pressure, which flows thru a fixed control orifice to determine the flow rate. This isn't really a factor, as you would buy an in line aviation flow meter to be sure you had the desired oxygen flow no matter what kind of bottle and regulator is used.
I have medical bottles and regulators, the smallest medical regulator I could find is a Precision Medical model 168708D.
It's adjustable from 'Off' to 8 LPM, the lowest setting being .25 LPM.
I have two of them, one I got on Epay for 99 cents!! It is flawless.
I have 2 Luxfer 'Medlux' C size bottles, and will probably get some larger sizes as time goes on. They are so inexpensive.
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Scott Emery
http://gallery.eaa326.org/v/members/semery/
EAA 668340, chapter 326 & IAC chapter 67
RV-8 N89SE first flight 12/26/2013
Yak55M, and the wife has an RV-4
There is nothing-absolute nothing-half so much worth doing as simply messing around with Aeroplanes
(with apologies to Ratty)
2019
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12-19-2010, 03:37 PM
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Join Date: Jun 2010
Location: Greenwood, IN
Posts: 31
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THX
Thanks all, I found a thread covering this in detail, I will be using the medical bottles as well!
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12-19-2010, 05:25 PM
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Join Date: Jan 2005
Location: Sherwood, Oregon
Posts: 981
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Thread
Point us to the thread, willya?
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Jerry Cochran
Sherwood, Oregon
RV-7a 707DD Bot from David Domeier 12/01/11
Lycoming IO-360 Catto 3 blade Panel upgrade in progress
RV6a 18XP 1st flite 03/21/07 sold to Dale Walter 10/22/2011
Superior IO-360, Hartzell Blended, GRT/Dynon
Happily "autopaying" DR
"Suppose you were an idiot, and suppose you were a member of Congress; but I repeat myself."
Mark Twain
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12-19-2010, 05:28 PM
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Join Date: Aug 2008
Location: Jacksonville, FL
Posts: 522
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Maybe this thread is the one.....
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Wendell VAF#1832
RV-6A 3/4 done...N48JE Reserved 
Build site: www.mykitlog.com/weneng
Donated to VAF in 2020
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12-20-2010, 04:22 AM
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Join Date: Jun 2010
Location: Greenwood, IN
Posts: 31
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Yep that is the one, only thing I need to know now is how to refill from my own large o2 tank.
Need a special hose I would guess
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