Quote: (Originally Posted by
J. V.)
Yes, french helium standard is a clockwise male thread (on the tank), diameter around 21 mm (exactly : 21,7 x 1,814).
It's the same standard than... oxygen in Italy !
There is many many standards around the world, so it's possible some are analogous to CGA, but it's chance, like french helium and italian oxygen.
You can found some of them here :
W+S Water Safety GmbH - Sauerstoff-, Nitrox-, Luft-Adapter
Many thanks, Jacques. These are important and useful clues. I'm slowly zeroing in on it.
Quote: (Originally Posted by
aquaxel)
the solution is to bring a set of adapters. if u dont have one for the specific cylinder any average metal workshop can make one.
Yes -- that's exactly what I'm trying to do -- but I need to know what the specs for this particular fitting are. Before I can have a machinist make one, I first need to know the geometry of the valve connection. In that case, I'd probably be able to buy some existing adapters.
Right now it's looking like a British "bullnose" fitting, but not sure yet.
Thanks to all for helping on this!
Rich