320-69250000 - Miller Smith 320 Series High Purity Stainless Steel Two-Stage Regulator, CGA 660, 0-25 PSI

Precision Control for High Purity Applications

The Miller Smith 320-69-25-00-00 is a premium high-purity, two-stage regulator engineered specifically for the rigorous demands of analytical laboratories and specialty gas applications. Part of the renowned 320 Silverline Series, this regulator is constructed from 316 stainless steel bar stock, offering exceptional resistance to corrosive gases and environmental factors. Its two-stage design is critical for applications requiring unwavering delivery pressure; it automatically compensates for the drop in cylinder pressure as the gas is consumed, ensuring a stable output of 0-25 PSI without the need for constant manual adjustment.

Advanced Material Construction

At the core of the 320 Series is a commitment to purity and safety. The regulator features a 316 stainless steel filtered seat which not only extends the service life of the unit but also ensures the integrity of the gas stream by preventing particulate contamination. The diaphragm is a convoluted stainless steel component designed for high sensitivity and precise control, sealed with a metal-to-metal interface that guarantees maximum leak integrity—a non-negotiable requirement when handling hazardous or expensive specialty gases. Wetted parts include 316 Stainless Steel and PCTFE, making it compatible with a wide range of corrosive media.

Safety and Operational Features

Safety is paramount in the design of the 320-69-25-00-00. The unit includes captured vent ports in the bonnet (1/16” FNPT), allowing operators to pipe hazardous fumes away to a safe ventilation system in the unlikely event of a diaphragm failure. Furthermore, the regulator is engineered to withstand internal vacuums, making it suitable for rigorous purging operations essential during cylinder changeovers. Large 2-1/2 inch single-scale gauges provide clear, immediate readouts of both inlet and delivery pressures, enhancing operator awareness and process control.