The carbon and gold coater for the SEM uses gases from tanks. The gases are compressed in the tanks, and regulator valves control the flow of gas from each tank.
How to install a cylinder regulator:
How to use a pressure regulator on a compressed gas cylinder:
Chemtaiji (8/20/2013) How to use a pressure regulator on a compressed gas cylinder. https://youtu.be/1RJZjPLV6rg
Harris Products Group (2/5/213) How to install a cylinder regulator. https://youtu.be/x4Aoanbe0NI