It is suitable for applications where a steady gas flow with no fluctuations is important. It reduces the variation of working pressure and of gas flow. It is widely used in industry and laboratories, in consumption points of various gases centralized facilities, in plating processes, in welding equipment that requires precision and in small gas stations. Technical features: It has two regulators housed in one body; Forged brass body and housing cap. Two 63mm-manometers with carbon steel case. Metal lever with smooth and precise adjustment. Flow rate for cuts up to 300mm. The 200 OX and 200 AC regulators are for use in welding, cutting and oxyacetylene heating processes. The 200N regulator is for use in laboratories and inerting and pressurization processes. The 200 ARG and 200 CO2 regulators have a gas flow control for use in gas shielded electric welding, such as MIG / MAG and TIG processes.