SF6 Filling Unit FLOW V0 enables a compartment to be filled from a cylinder. The pressure reducer ensures the regulation of the outlet gas pressure. The device is equipped with an inlet pressure gauge that monitors the pressure of the gas in the cylinder and an outlet pressure gauge that monitors the pressure of the gas entering the compartment. The SF6 Filling Unit is equipped with a scale and relative digital display thanks to which it is possible to control the quantity of gas transferred.