311-66310000 - Miller Smith 310 Series Silverline High Purity Stainless Steel Regulator, 0-50 PSIG, CGA 705

Precision Control for High Purity and Corrosive Gases

The Miller Smith 310 Series Silverline Single Stage Regulator is engineered specifically for the rigorous demands of high purity, corrosive, and toxic gas applications. Model 311-66-31-00-00 is a testament to precision manufacturing, featuring a body machined from 316 stainless steel bar stock. This material choice is critical for maintaining system integrity when handling aggressive media that would degrade standard brass regulators. The unit is designed to prevent contamination within high-purity systems, ensuring that the gas delivered to your process remains as pure as the source.

At the heart of this regulator is a convoluted stainless steel diaphragm. Unlike rubber or elastomeric diaphragms that can outgas or degrade over time, the stainless steel diaphragm provides a non-permeable barrier that ensures stable pressure regulation and maximum accuracy. The diaphragm seal is metal-to-metal, a design feature that significantly enhances leak integrity—a non-negotiable requirement when managing hazardous or toxic gases. To further ensure safety, the bonnet includes a captured vent port (1/16" FNPT), allowing operators to pipe vented gases away to a safe disposal area in the unlikely event of a diaphragm failure.

The internal architecture includes a 316 PCTFE filtered seat. This material is selected for its chemical resistance and hardness, providing a durable sealing surface that extends the service life of the regulator while maintaining gas stream purity. The regulator supports a maximum inlet pressure of 3500 PSIG and delivers a precise outlet pressure range of 0-50 PSIG, monitored via large, easy-to-read 2-1/2 inch single scale gauges. The CGA 705 connection is specifically designed for stainless steel applications, ensuring compatibility with corresponding cylinders. Whether for laboratory analysis, semiconductor manufacturing, or chemical processing, the Miller Smith 310 Series provides the reliability and safety required for critical gas management.