622-02050000 - Miller Smith 620 Series High Purity Two-Stage Air Regulator, CGA 346

Precision Control for High Purity Applications

The Miller Smith 622-02-05-00-00 Silverline High Purity Brass Two Stage Regulator is engineered for professionals who demand absolute precision and cleanliness in their gas delivery systems. Part of the renowned 620 Silverline Series, this regulator is specifically configured for Air (CGA 346) service, making it an essential component for analytical instrumentation, chromatography, and other laboratory applications where gas stream purity is paramount.

Uncompromised Purity and Stability

At the heart of this regulator is a unique stainless steel diaphragm. Unlike standard rubber or neoprene diaphragms, stainless steel does not absorb or release contaminants (outgassing), ensuring that the high-purity air from your cylinder reaches your instrument without degradation. The metal-to-metal seal between the body and the diaphragm further eliminates the need for elastomeric gaskets that can leak or degrade over time. This construction allows the regulator to withstand internal vacuums, facilitating effective purging operations before use.

Two-Stage Performance

Stability is critical in sensitive applications. This unit features a two-stage design, which functions by reducing the high cylinder pressure in two steps. The result is a constant delivery pressure (0-100 PSIG) that does not fluctuate as the cylinder pressure drops. This "set it and forget it" capability ensures that your processes run smoothly without the phenomenon of "delivery pressure decay" or rising outlet pressure common in single-stage alternatives.

Robust Construction

Built from nickel-plated brass bar stock, the body is both durable and resistant to environmental corrosion. The regulator includes a 316 stainless steel filter to trap particulates, protecting the seat and extending the service life of the unit. With a maximum inlet pressure rating of 3500 PSIG and captured vents for safety, the Miller Smith 622-02-05-00-00 represents the gold standard in high-purity brass regulation.