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View Full Version : Bizjet oxygen refill fitting - what is it?


IO540
2nd Jun 2010, 18:51
I am looking for an adaptor which screws onto a U.S. 540 oxygen cylinder and which accepts the standard hose used to refill business jet cylinders at major airports around the world.

The hose fitting in question is a small fine thread - about 1/4" OD, I vaguely recall. It *may be* Puritan Bennett but really I haven't got a clue. Nobody I know knows what it is - even people who work on big turboprops.

mathy
3rd Jun 2010, 13:22
Male or Female?

The standard one is FA-540 of course but there is a Puritan Bennett adaptor. And a Scott.

There are pictures on Aviation Oxygen Refill Stations (http://www.aviationoxygen.com/refill_stations.html)
is it not there?

IO540
3rd Jun 2010, 16:48
The 540 thread I know well - that is what the US cylinders have. But this is big - about 20mm dia. The thread I have seen is about half that size.

Are you saying there is more than one "standard" and that when a King Air pilot lands somewhere and needs his emergency o2 topped off, somebody needs to mess around with adaptors? This may be so, in which case there is no simple solution.

That URL is dead, currently. This one (http://aerox.com/fillingstations.html) might be relevant, perhaps, but I cannot see enough detail.

clarkieboy
4th Jun 2010, 07:42
If its an adapter for refilling walkround/emergency O2 bottles, the one we use is part number MC1100, maker unknown, unfortunately. Hope that helps.

Cheers