Refillable Oxygen Tank setup questions

[worldzfree]

I have a 20CU refillable CGA-540 O2 bottle I picked up. Besides getting a stone and some hose I am trying to figure out what flowmeter would work with this. I want to accurately measure out the O2 I am adding. Can someone recommend a make and model flowmeter that would work with this bottle?

 

[bad67z]

Do you already have a regulator to bring the cylinder pressure down to a serviceable pressure?

 

[worldzfree]

No. I just have the tank and am trying to understand what else I need. Do you have any recommendations? Part numbers would help.

 

[bad67z]

Well if your looking for a turn-key setup, the best deal I have found thus far is these. Depending on how much O2 deliver you want.

http://www.lifemedicalsupplier.com/oxygen-regulators-o2-o2-regulators-cga540-valve-c-27_31_256.html

 

[bad67z]

I just did a ebay search, and here is what I came up with.

Any with a CGA 540 fitting and a flow meeter will work.

 

[carrotmalt]

I'm about to order one of these. They seem to be priced reasonably and I've read good reviews for it here on HBT.

 

[worldzfree]

bad67,

thanks for all the info. that helps me out as i wasn't sure if there was a limit to the size of the cylinder that is attached to those flowmeters. i found one that supports up to 4000psi input from a cylinder.

carrotmalt,

yeah, i have seen that setup. the two things that i am not too keen on are lack of flow control and using smaller disposable cylinders. but that's just me. there are a TON of people on the forums that use that setup and are quite happy with it.

 

[carrotmalt]

bad67,
...the two things that i am not too keen on are lack of flow control and using smaller disposable cylinders. but that's just me.

Honestly I didn't realize the connection for the disposable bottle was different than a standard oxygen bottle.
FWIW, I'm thinking I might throw a $10 pressure guage and a shutoff valve between the regulator and the wand so I can guage the pressure.

 

[worldzfree]

I ended up going with one of these cheapo regulators that has adjustable increments of LPM. Flow Rates: 0 - 1/8 - 1/2 - 1 - 1.5 - 2 - 3 - 4 - 6 - 8 - 10 - 15 LPM. I forgot to mention I bought my 20 CU cylinder from GTS-Welco for $60 shipped. Here's the link

 

[carrotmalt]

I ended up going with one of these cheapo regulators that has adjustable increments of LPM. Flow Rates: 0 - 1/8 - 1/2 - 1 - 1.5 - 2 - 3 - 4 - 6 - 8 - 10 - 15 LPM

How much? I couldn't find the price listed.

 

[worldzfree]

I got one off of ebay for $22. http://cgi.ebay.com/NEW-CGA-540-Oxygen-Regulator-w-Flow-Control-0-15-LPM-/220615552915?pt=LH_DefaultDomain_0&hash=item335db62f93

This is designed for a CGA-540 style connection though (which is completely different from medical bottle connections I believe). It won't work with the disposable O2 bottle that you linked to either.

 

[bad67z]

WF I think 'm gonna order one, I'm winging it with just a regulator at this time and like the compact design of this unit. Are you happy with your purchase?

 

[worldzfree]

I just bought mine this morning. I'll let you know.

 

[BrewBeemer]

WF I think 'm gonna order one, I'm winging it with just a regulator at this time and like the compact design of this unit. Are you happy with your purchase?

Since you already have a regulator i'm assuming you have a bottle already then add a flow meter.
These Timeter medical flow meters operate at 50 psi with a flow range .5 to 15 LPM scaled. From zero to .5 LPM can be achieved;
http://www.alliedhpi.com/images/z10-00-0101.pdf
They come up on ebay singles to a bundle at $22 to $25 each on average.
I use a 215 cu/ft oxygen bottle with a Victor 100 series regulator, Timeter model ULO-15 flow meter with 1/8" FNPT inlet fitting.

 

[bad67z]

Since you already have a regulator i'm assuming you have a bottle already then add a flow meter.
These Timeter medical flow meters operate at 50 psi with a flow range .5 to 15 LPM scaled. From zero to .5 LPM can be achieved;
http://www.alliedhpi.com/images/z10-00-0101.pdf
They come up on ebay singles to a bundle at $22 to $25 each on average.
I use a 215 cu/ft oxygen bottle with a Victor 100 series regulator, Timeter model ULO-15 flow meter with 1/8" FNPT inlet fitting.

BB, I had thought of doing that since I can get a flow-meter for free. But it becomes too gangly for my liking. I only have a 20 cf. O2 cylinder and already have a "heavy duty" Oxweld two stage regulator hanging off of it (overkill, but free) . I would prefer to downsize rather than add additional hardware. Thanks for the suggestion BB.