221-0003 - Smith Silverline 220 Series High Purity Regulator CGA 326

Rugged Reliability for Specialty Gas Management

For industrial professionals and welders who require laboratory-grade precision in a shop environment, the Miller Smith 221-00-03 Silverline Regulator delivers unmatched performance. While standard welding regulators are built for general purpose shielding gases, certain advanced applications—such as laser welding mixtures, calibration gases, or specific chemical processes—require a higher level of control and cleanliness. The Silverline 220 Series bridges the gap between industrial durability and analytical precision.

Built on a foundation of rugged brass bar stock, this regulator is designed to withstand the physical demands of a working environment. However, it distinguishes itself with a fully plated body and bonnet. This plating protects the brass from oxidation and corrosion, ensuring the tool maintains its integrity and appearance over years of service. The CGA 326 connection is specific to certain oxidizers and specialty mixtures, making this the correct tool for specific gas cylinders that standard inert regulators cannot fit.

The primary mechanical advantage of this unit is its two-stage construction. In critical processes, pressure fluctuation can lead to weld defects or process inconsistencies. A two-stage regulator automatically compensates for the drop in cylinder pressure as the tank empties, providing a steady flow at the torch or machine inlet without the need for manual readjustment. This allows operators to utilize the entire contents of a cylinder without compromising quality near the end of the tank.

Safety and longevity are built-in. The regulator features an automatic reseating safety relief valve that protects internal components from over-pressurization. Additionally, the design is capable of withstanding vacuums generated during purging operations, a common procedure when switching high-purity lines to prevent atmospheric contamination. With large, easy-to-read 2-1/2 inch gauges and a precise 0-60 PSIG delivery range, the Miller Smith 221-00-03 is the professional's choice for specialty gas regulation.