620-03090000 - Miller Smith 620 Series Silverline High Purity Two-Stage Regulator, CGA 580, 0-25 PSI

Precision Control for Specialty Gases

The Miller Smith 620 Series Silverline High Purity Brass Two-Stage Regulator is an exemplary instrument designed for the rigorous demands of non-corrosive specialty gas applications. Engineered to deliver uncompromised precision, this regulator features a sophisticated two-stage reduction mechanism. This design ensures that the outlet pressure remains constant and stable, even as the cylinder pressure fluctuates and decays over time. For laboratory environments and analytical applications where pressure drift can compromise results, the 620 Series provides the reliability required for critical operations.

Central to the regulator's high-purity performance is its unique stainless steel diaphragm. Unlike elastomeric diaphragms that can off-gas or absorb contaminants, the stainless steel construction maintains the integrity of the gas stream, ensuring that the purity of the supply gas is preserved from the cylinder to the application. The regulator also utilizes a metal-to-metal seal between the body and the diaphragm, eliminating the need for gaskets that could introduce leak paths or contamination. A filtered seat further enhances gas stream purity by trapping particulates before they can damage the seating surface or enter the downstream system.

Constructed from nickel-plated brass bar stock, the body of the 620 Series offers superior durability and resistance to environmental corrosion compared to standard brass regulators. The unit is equipped with a 2-1/2 inch single scale gauge for clear readability and features threaded front and rear bonnets to facilitate panel mounting if required. Safety is paramount in the design, evidenced by the capturable vent in the bonnet (1/16" FNPT), which allows for the safe piping away of gases in the unlikely event of a diaphragm failure. With a maximum inlet pressure rating of 3500 PSI and a delivery range optimized for 0-25 PSI, this regulator is the professional's choice for inert gas management.