322-85250100 - Miller Smith 320 Series High Purity Stainless Steel Regulator, 2-Stage, CGA 660, 100 PSI

Precision Control for High Purity Applications

The Miller Smith 322-85-25-01-00 is a premium component of the 320 Silverline Series, engineered specifically for the rigorous demands of specialty gas delivery. Designed for analytical laboratories, research facilities, and industrial processes requiring absolute gas purity, this two-stage regulator ensures that your critical gas streams remain uncontaminated and stable. The unit is constructed from high-grade 316 stainless steel bar stock, providing exceptional resistance to corrosion from aggressive media while maintaining structural integrity under high pressures.

Advanced Two-Stage Design

Stability is paramount in precision applications. The two-stage architecture of this regulator steps down cylinder pressure in two distinct phases, resulting in an unwavering delivery pressure even as the supply cylinder depletes. This feature eliminates the need for constant manual adjustments and ensures that sensitive downstream equipment receives a consistent flow. The convoluted stainless steel diaphragm offers sensitive pressure response and precise control, making it ideal for applications requiring exact pressure settings between 0 and 100 PSI.

Uncompromised Safety and Integrity

Safety is engineered into every aspect of the 320 Series. The regulator features a unique metal-to-metal diaphragm seal, which provides maximum leak integrity—a critical requirement when handling hazardous or toxic gases. To further enhance safety, the bonnet includes captured vent ports (1/16" FNPT) on both stages. This allows users to pipe vented gases away to a safe disposal area in the rare event of a diaphragm failure. Additionally, the regulator is designed to withstand internal vacuums, making it compatible with standard purging operations necessary for maintaining system purity during cylinder changes.

Durability and Ease of Use

Beyond its internal precision, the regulator is built for usability. It features large, easy-to-read 2-1/2 inch gauges that provide clear readings of both inlet and delivery pressures. The filtered seat, made from PCTFE, protects the internal mechanism from particulate damage, extending the service life of the unit. With a maximum inlet pressure rating of 3500 PSI and a standard CGA 660 connection, this regulator is ready to integrate seamlessly into your high-purity stainless steel gas systems.