221-0306 - Miller Smith Silverline 220 Series High Purity Two-Stage Regulator CGA 350

Rugged Reliability for Specialty Gas Management

The Miller Smith 221-03-06 Silverline Regulator represents the gold standard in gas control for professionals who demand both durability and precision. While often found in laboratory settings, the rugged construction of this regulator makes it equally at home in industrial environments where specialty gases are used. Built from rugged brass bar stock and finished with a high-quality plating, the body and bonnet are engineered to resist the wear and tear of daily use while preventing corrosion that can compromise equipment over time.

Consistent Flow for Critical Tasks

When working with specialty gases, consistency is key. Single-stage regulators can suffer from "decay," where the outlet pressure rises as the cylinder pressure falls, requiring constant manual adjustment. The Miller Smith 221-03-06 utilizes a two-stage mechanism that automatically compensates for changing cylinder pressure. This ensures that your output remains rock-steady at your set point—up to 60 PSIG—regardless of whether your tank is full (3500 PSIG) or running low. This feature is indispensable for processes requiring uniform gas flow over extended periods.

High-Performance Components

This regulator isn't just about tough housing; the internal components are selected for maximum performance. It features a stainless steel diaphragm, which offers superior sensitivity and longevity compared to standard rubber diaphragms. The stainless steel construction also ensures that the regulator does not introduce impurities into the gas stream, which is vital for high-purity applications. Additionally, the filtered seat design prevents debris from damaging the internal sealing mechanism, significantly reducing maintenance downtime.

User-Friendly Features

Miller has designed the Silverline series with the operator in mind. The large 2-1/2 inch gauges are easy to read, reducing eye strain and minimizing errors in pressure reading. The unit comes equipped with a CGA 350 connection, standard for flammable gases like Hydrogen and Methane in high-purity grades. A built-in capturable safety relief valve adds an essential layer of protection, venting excess pressure safely if a fault occurs. Whether you are setting up a calibration station or managing carrier gases, the 221-03-06 delivers the performance you trust from the Miller name.