623-20080000 - Miller Smith 620 Series Silverline High Purity 2-Stage Oxygen Regulator 0-250 PSI

Precision High Purity Gas Control

The Miller Smith 623-20-08-00-00 Silverline High Purity Brass Two Stage Regulator is engineered for applications demanding rigorous gas purity and stable pressure delivery. Part of the renowned 620 Silverline Series, this regulator is constructed from nickel-plated brass bar stock, offering a robust yet clean solution for non-corrosive gas management. It is specifically configured with a CGA 540 connection for Oxygen service and provides a delivery pressure range of 0-250 PSI.

Advanced Diaphragm Technology

At the core of this regulator is a specially designed stainless steel diaphragm. Unlike elastomeric diaphragms, the stainless steel construction prevents off-gassing and contamination, making it suitable for analytical and high-purity processes. The metal-to-metal seal between the body and the diaphragm further ensures system integrity, minimizing the risk of external leakage or atmospheric contamination. This design allows the regulator to withstand internal vacuums, facilitating effective purging operations without compromising the seal.

Stable Two-Stage Performance

The two-stage architecture is critical for maintaining constant outlet pressure. As the supply cylinder drains and inlet pressure decays, single-stage regulators often experience a rise in outlet pressure. The 623-20-08-00-00 eliminates this issue by stepping down pressure in two stages, providing a steady flow rate and pressure regardless of cylinder fluctuations. This feature is essential for long-duration protocols where stability is paramount.

Safety and Durability

Safety features include a capturable vent in the bonnet (1/16" FNPT), allowing for the safe piping away of gases in the unlikely event of a diaphragm failure. The unit also features a 316 stainless steel filter to protect the seat from particulate damage, extending the service life of the regulator. With threaded front and rear bonnets, this unit is also suitable for panel mounting configurations.