I'm curious. How different is it to install a new valve on a tank needing to be filled with pure oxygen vs a tank that will be filled with no more than 40% Nitrox? Does the valve require a specific treatment or installation protocol?
How different to put in new valve for 100% oxygen?
- Thread starter NYCrecdiver
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Most just use the same oxygen clean(ed) valves that you use for partial pressure filling. There is an oxygen specific valve that DGX sells, it has a finer thread on the handle so it turns the seat slower, but it appears that a minority of cave divers use them.
While it's open, it's a good opportunity to have the inside and valve cleaned/inspected. No difference in installation. (Do not lube the o-ring in either case.) I prefer the O2-specific valve with finer knob threads but not enough to change out the one bottle I have with a normal valve.
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