120-4009 - Miller Smith 120 Series Silverline 2-Stage Inert Gas Regulator, CGA 580, 0-30 PSI

Reliable Gas Control for Shop and Lab

When your work demands consistency, the Miller Smith 120-40-09 Silverline Series Regulator delivers. Designed for welders, fabricators, and technicians who work with inert gases like Argon, Nitrogen, and CO2, this two-stage regulator takes the guesswork out of pressure management. If you have ever struggled with delivery pressure creeping up as your tank gets low, you know the value of a two-stage system. This regulator steps the pressure down in two stages, ensuring that the output remains rock-steady from a full tank all the way down to empty, allowing you to focus on your task rather than constantly adjusting your settings.

Built to withstand the rigors of the shop environment while maintaining laboratory-grade precision, the 120-40-09 features a rugged brass body that is plated for extra durability and a clean, professional look. The "Silverline" name is synonymous with quality, and this unit lives up to it with features like a filtered seat that prevents dirt and shavings from damaging the regulator—a common cause of failure in lesser equipment. The large diaphragm allows for smooth, accurate adjustments within the 0-30 PSI range, making it perfect for purging applications, pressure testing, or shielding gas supply where lower pressures are required.

The clear, 2-1/2 inch gauges make it easy to check your levels from a distance, and the standard CGA 580 connection fits your typical inert gas cylinders without the need for adapters. Whether you are setting up a custom TIG purging rig, running pneumatic tools with Nitrogen, or managing CO2 for a specific process, this regulator provides the reliability you expect from Miller Smith. It handles up to 3500 PSI inlet pressure, covering you for standard and high-pressure cylinders alike.

Don't settle for fluctuating pressures that can ruin a weld or invalidate a test. Upgrade to the stability of the Miller Smith Silverline Two-Stage Regulator and experience the difference that quality engineering makes in your daily operations. It is the "set it and forget it" solution for non-corrosive gas control.