622-00020000 - Miller Smith Silverline 620 Series Two-Stage CO2 Regulator, 0-100 PSI Delivery

High Purity Precision for Analytical Applications

The Miller Smith 622-00-02-00-00 Silverline High Purity Brass Two Stage Regulator is engineered for professionals who demand uncompromising accuracy and gas stream integrity. Designed as part of the renowned 620 Silverline Series, this regulator is specifically optimized for non-corrosive specialty gases, particularly Carbon Dioxide (CGA 320), where maintaining a contaminant-free environment is critical. The core of this unit features a specially designed stainless steel diaphragm. Unlike elastomeric diaphragms that can off-gas or absorb impurities, the stainless steel construction ensures that the gas purity is maintained from the cylinder to the application point.

Mechanically, the regulator utilizes a two-stage reduction system. This configuration is essential for applications requiring a constant delivery pressure over the life of the cylinder. As the inlet pressure from the tank decays, single-stage regulators often suffer from a 'decaying inlet characteristic' where outlet pressure rises. The 622-00-02-00-00 eliminates this variable, providing a steady 0-100 PSIG output regardless of whether the tank is full (up to 3500 PSIG) or nearing empty. The body is machined from brass bar stock and nickel-plated, offering a robust, non-porous surface that resists environmental corrosion while maintaining a professional aesthetic suitable for laboratory environments.

Safety and sealing are paramount in the Silverline design. The regulator employs a metal-to-metal seal between the body and the diaphragm, eliminating the need for gaskets that could degrade or leak over time. Additionally, the bonnet features a capturable vent (1/16" FNPT), allowing users to pipe vented gases away safely in the event of a diaphragm failure—a critical feature for enclosed workspaces. With a filtered seat to prevent particulate damage and a 2-1/2" single scale gauge for clear readability, this regulator represents the intersection of safety, durability, and precision engineering.