620-03050000 - Miller Smith 620 Series Silverline High Purity 2-Stage Regulator, CGA 346, 0-25 PSI

Precision Control for High Purity Applications

The Miller Smith 620-03-05-00-00 Silverline High Purity Brass Two-Stage Regulator is engineered for professionals who demand exacting standards in gas delivery. Designed specifically for non-corrosive specialty gases, this regulator features a CGA 346 connection, making it the ideal choice for high-purity air applications in laboratory, research, and industrial settings. The 620 Series distinguishes itself with a robust two-stage architecture. Unlike single-stage counterparts, this regulator reduces cylinder pressure in two distinct steps. This mechanism ensures that the delivery pressure remains constant and stable, even as the inlet pressure decays significantly over the life of the cylinder. For analytical processes where pressure stability is critical, the 620 Series delivers unwavering performance.

Advanced Materials and Construction

Purity is paramount in the design of the Silverline series. The body is machined from nickel-plated brass bar stock, providing a durable, corrosion-resistant exterior that withstands rigorous industrial environments while maintaining a clean aesthetic. Internally, the regulator utilizes a stainless steel diaphragm. This is a crucial feature for high-purity applications, as it eliminates the risk of off-gassing associated with elastomeric diaphragms and provides a metal-to-metal seal with the body. This construction ensures maximum leak integrity and prevents atmospheric contamination of the gas stream. Additionally, a 316 stainless steel filter is integrated into the seat assembly to trap particulates, further protecting the regulator's internal components and ensuring the purity of the downstream gas.

Safety and Versatility

Safety is integral to the Miller Smith design. The regulator includes a capturable vent in the bonnet (1/16" FNPT), allowing users to pipe vented gases away to a safe location in the event of a diaphragm failure—a critical feature when working in enclosed spaces. The unit is also capable of withstanding internal vacuums, making it suitable for purging operations required to maintain system cleanliness. With a delivery range of 0-25 PSI (capable of vacuum reading on the gauge), this regulator offers precise low-pressure control necessary for sensitive instrumentation.