121-0009 - Miller Smith Silverline 2-Stage Inert Gas Regulator, 0-50 PSIG, CGA 580

Reliable Gas Control for Professional Welders

When consistency counts, the Miller Smith 121-00-09 Silverline Series Regulator delivers. Designed for welders and fabricators who demand reliability, this two-stage regulator takes the guesswork out of gas management. If you have ever struggled with delivery pressure creeping up or dropping off as your tank gets low, you know the frustration of constantly readjusting your settings. The 121-00-09 solves this problem with its advanced two-stage reduction system, which steps down cylinder pressure in two phases to provide a rock-steady output from a full tank down to an empty one.

Built Miller Tough

Miller Smith equipment is synonymous with quality, and this regulator is no exception. The unit features a solid brass body that is machined from bar stock—not cast—providing superior strength. The entire exterior, including the bonnet and gauge cases, is plated to resist corrosion and wear, keeping your gear looking and functioning like new for years. It connects via a standard CGA 580 fitting, making it the perfect choice for your Argon, Nitrogen, or Helium cylinders. Whether you are setting up a TIG station, purging a pipe for stainless welding, or running pneumatic tools with nitrogen, this regulator stands up to the task.

Precision and Safety

Safety and precision go hand in hand with the Silverline series. The regulator includes a preset safety relief valve to vent excess pressure if necessary, adding a layer of protection for your downstream equipment. The large 1-7/8 inch diaphragm responds instantly to changes in flow demand, ensuring your set pressure remains stable. The 2-1/2 inch gauges are large and legible, reducing eye strain and helping you monitor your gas supply accurately. With a delivery range of 0-50 PSIG, you have the fine control needed for delicate work.

Why Choose the 121-00-09?

Investing in a two-stage regulator is an investment in efficiency. By eliminating the need for frequent adjustments, you save time and reduce gas waste. The Miller Smith 121-00-09 combines this efficiency with the durability of the Silverline family, backed by Miller's reputation for excellence. It is an ideal solution for shops, garages, and maintenance departments looking for a "set it and forget it" gas control solution.