313-83310000 - Miller Smith Silverline 310 Series SS Regulator, CGA 705, 250 PSIG

High Purity Stainless Steel Regulation

The Miller Smith 313-83-31-00-00 Silverline High Purity Regulator is a premium single-stage device engineered for the precise control of corrosive, non-corrosive, and toxic gases. Part of the renowned 310 Silverline Series, this regulator is meticulously constructed to maintain the integrity of high-purity systems. The body is machined from 316 stainless steel bar stock, ensuring robust resistance to chemical attack and environmental corrosion. This material choice is critical for applications involving reactive specialty gases where standard brass regulators would fail or introduce contaminants.

At the heart of this regulator is a convoluted stainless steel diaphragm designed to provide stable delivery pressure even as cylinder pressure decays. The diaphragm utilizes a metal-to-metal seal, eliminating the need for elastomeric seals that can outgas or degrade over time, thereby ensuring maximum leak integrity. For corrosive applications, all wetted parts—including the filtered seat—are constructed from 316 PCTFE (Polychlorotrifluoroethylene), a material chosen for its chemical inertness and durability. This specific model features a CGA 705 connection, suitable for specific corrosive gas service, and delivers a pressure range of 0-250 PSIG.

Safety is paramount when handling hazardous gases. The Miller Smith 313-83-31-00-00 includes a captured vent port (1/16" FNPT) located in the bonnet. This feature allows for the connection of a vent line to safely divert hazardous gases away from the operator and workspace in the unlikely event of a diaphragm failure. Additionally, the regulator is designed to withstand internal vacuum, making it compatible with purge cycles essential for maintaining system purity during cylinder changeovers. Note that a Cross Purge Assembly is recommended for use with this series to ensure effective purging of hazardous gas traces.