312-85000000 - Miller Smith 310 Series Silverline Stainless Steel High Purity Regulator, 0-100 PSIG

Precision Engineering for High Purity Applications

The Miller Smith 312-85-00-00-00 Silverline High Purity Regulator is a premier solution designed for the rigorous demands of specialty gas delivery. Engineered within the 310 Silverline Series, this single-stage regulator is specifically constructed to maintain the integrity of high-purity systems while providing accurate regulation for corrosive, non-corrosive, and toxic gases. The core of its performance lies in its material composition; all wetted parts are manufactured from 316 Stainless Steel and PCTFE (Polychlorotrifluoroethylene), ensuring exceptional resistance to chemical attack and minimizing particle generation that could contaminate sensitive downstream processes.

A standout feature of this model is the convoluted stainless steel diaphragm. Unlike flat diaphragms, this convoluted design offers superior sensitivity and reduces hysteresis, allowing for precise control of delivery pressure between 0 and 100 PSIG. The diaphragm utilizes a metal-to-metal seal with the body, providing maximum leak integrity—a critical factor when handling hazardous media. Furthermore, the regulator is equipped with a 316 stainless steel filtered seat which not only aids in maintaining gas stream purity but also extends the service life of the unit by protecting the seating surface from particulate damage.

Safety is paramount in the design of the 312-85-00-00-00. The bonnet features a captured vent port (1/16" FNPT), which allows operators to pipe vented gases away to a safe location in the unlikely event of a diaphragm failure. This feature is essential for facilities handling toxic or flammable gases. The unit is also capable of withstanding an internal vacuum, making it compatible with purge cycles necessary for maintaining system purity during cylinder changes. With a maximum inlet pressure of 3500 PSIG and versatile 1/4" FNPT connections, this regulator offers the flexibility and reliability required for advanced laboratory, petrochemical, and industrial applications.