310-00250000 - Miller Smith 310 Series Silverline High Purity Stainless Steel Regulator, CGA 660, 0-25 PSIG

Technical Overview of the Miller Smith 310 Silverline Series

The Miller Smith 310-00-25-00-00 is a premium Single Stage High Purity Regulator designed specifically for the precise control of corrosive, non-corrosive, and toxic gases in specialty applications. Part of the 310 Silverline Series, this regulator is engineered to maintain the integrity of high-purity systems by preventing contamination and ensuring stable delivery pressures. The unit features a robust body machined from 316 stainless steel bar stock, providing excellent mechanical strength and chemical resistance essential for harsh industrial and laboratory environments.

Internally, the regulator utilizes a 316 PCTFE (Polychlorotrifluoroethylene) filtered seat. This material choice is critical for applications involving corrosive media, as it offers superior resistance compared to standard elastomers, thereby extending the service life of the component. The diaphragm is constructed from convoluted stainless steel, a design that enhances sensitivity and allows for highly accurate pressure regulation within the 0-25 PSIG range. A metal-to-metal seal between the diaphragm and the body ensures maximum leak integrity, capable of withstanding internal vacuum conditions and preventing fugitive emissions.

Safety and integration are key aspects of the 310 Series design. The bonnet includes a captured vent port (1/16" FNPT), which allows for the safe piping and venting of hazardous gases in the unlikely event of a diaphragm failure. For system integration, the regulator is versatile, offering threaded bonnets for front panel mounting and tapped bodies for rear panel mounting. The inlet connection is a CGA 660 stainless steel fitting, rated for a maximum inlet pressure of 3500 PSIG. Large 2-1/2 inch gauges provide clear visual confirmation of cylinder and delivery pressures.