A PLC, or Portable Liquid Container, is a transportable, vacuum-insulated container designed to store and dispense liquefied gases. These liquefied gases are essentially the same industrial gases you might find in a standard compressed gas cylinder, but cooled to extremely low temperatures so they turn into liquids. This liquid state allows them to be stored in a much smaller container than a compressed gas cylinder would require for the same amount of gas.
PLCs are most commonly used for gases like oxygen, nitrogen, argon, and carbon dioxide. They offer several advantages over traditional compressed gas cylinders, including: