converting cylinder for 100% oxygen intake

[skysurfer]

Good day to all...


NEED SOME HELP PLEASE


I have a 7L 300bar dive cylinder that has been oxy-cleaned for the use of 100% oxygen. It will not be used under water but purely for home care medical purposes.

The cylinder has a din valve connection (head) and is tapered where it fits onto the cylinder.


I am looking for a medical regulator or something like that, which can fit onto the din valve connection or alternatively a medical regulator that has its own tapered screw to fit directly onto the cylinder.


Could the technical guys please advice. Any information would be appreciated.

Regards
Gerhard

 

[rjack321]

Are you in North America?

If it looks like a DIN connection, and are in North America, you have the wrong valve. Industrial and medical oxygen uses a dedicated valve either a Compressed Gas Association (CGA) 540 or a CGA 870 valve.

The 540 has male threads and the 870 is a post that takes a yoke fitting. Big cylinders use the 540 and small ones the 870. When installed in steel oxygen cylinders they have tapered threads.

If you are not in North America (sounds like you might not be) where are you?

 

[iztok]

If you are not in North America (sounds like you might not be) where are you?

South Africa

 

[ajduplessis]

DAN South Africa sells an adaptor locally here that has a DIN & PIN ends. DIN goes to the scuba tanks, the PIN connects the DAN/medical first stage/regulator. They are about R500 if I recall correctly.

PM me if you need more detail.

 

[oxyhacker]

Do check that you will be able to get it filled before you spend too much on the project. In the US, gas suppliers usually will not put O2 in an adapted tank. Or if they will, they will want to charge an arm and a leg for doing so. You may be better off just leasing or buying an O2 medical or welding tank.