311-83220000 - Miller Smith 310 Series Silverline Stainless Steel Regulator, CGA 330, 50 PSIG

High Purity Regulation for Corrosive Environments

The Miller Smith 311-83-22-00-00 Silverline High Purity Regulator is a premium single-stage gas control device engineered specifically for the rigorous demands of specialty gas delivery. Designed to handle corrosive, non-corrosive, and toxic gases, this regulator is built from 316 stainless steel bar stock, ensuring maximum resistance to chemical attack and maintaining the integrity of high-purity systems. The unit features a CGA 330 inlet connection, making it suitable for specific corrosive gas families, and delivers a precise pressure range of 0-50 PSIG.

At the core of the 310 Silverline series is a convoluted stainless steel diaphragm that provides exceptional sensitivity and stable pressure control. Unlike standard elastomeric diaphragms, this metal-to-metal seal design eliminates outgassing and permeation, guaranteeing maximum leak integrity—a critical factor when handling hazardous media. The regulator also utilizes a 316 stainless steel filtered seat made of PCTFE, which not only enhances gas stream purity but also significantly extends the service life of the component by protecting it from particulate damage.

Safety is paramount in the design of the 311-83-22-00-00. The bonnet includes a captured vent port (1/16" FNPT) that allows for the safe piping and venting of hazardous gases in the unlikely event of a diaphragm failure. This feature is essential for maintaining a safe laboratory or industrial environment. Additionally, the regulator is equipped with large, easy-to-read 2-1/2 inch single scale gauges, allowing operators to monitor cylinder and delivery pressure with accuracy. For optimal system purity during cylinder changes, it is highly recommended to use a Cross Purge Assembly with this series.

Whether integrated into a panel mount system or used directly on a cylinder, the Miller Smith 310 Series delivers the reliability and precision required for analytical instrumentation, semiconductor manufacturing, and chemical processing applications.