Thank you all for taking the time to read my question.
I am getting mixed on this and I am wondering what
people in the jewelry community do.
I know that for Fuel tank valves we are all supposed to just open
from 1/4 to 3/4 of a turn in case of emergency it is easily shut
down. I just read that in the case of Oxygen tanks, the valve
actually needs to be opened all the way because of the higher amount
of pressure present in the tank and the way the back-seating valve
works. If it is not opened all the way apparently there is a risk of
there being a leak in the threading of the valve itself. I had
thought that 1/4 to 3/4 turns with oxygen was also a good preventive
procedure in case of emergency. What is the best practice here?