322-66250000 - Miller Smith 320 Series High Purity SS Regulator, 2-Stage, CGA 660, 0-100 PSI

High Purity Precision for Corrosive Environments

The Miller Smith 322-66-25-00-00 is a premium component of the 320 Silverline Series, engineered specifically for the rigorous demands of high purity and corrosive gas applications. This two-stage regulator is constructed from 316 stainless steel bar stock, ensuring maximum resistance to corrosion and maintaining the integrity of the gas stream. The unit features a PCTFE seat and a 316 stainless steel filtered seat, which not only extends service life but also ensures that gas purity is not compromised during regulation.

Designed for critical applications, the regulator utilizes a convoluted stainless steel diaphragm with a unique metal-to-metal seal. This construction provides superior leak integrity, essential when handling hazardous or expensive specialty gases. The two-stage mechanism is pivotal for operations requiring unwavering delivery pressure; it compensates for inlet pressure decay as the supply cylinder empties, providing a flat delivery curve. The regulator is also capable of withstanding internal vacuums, making it suitable for purging operations necessary during cylinder changeovers.

Safety and integration are key aspects of the 322-66-25-00-00. It includes captured vent ports (1/16" FNPT) in the bonnet, allowing for the safe piping and venting of hazardous fumes in the unlikely event of a diaphragm failure. The unit comes equipped with a CGA 660 inlet connection and a 1/4" MNPT stainless steel needle valve outlet, offering precise flow control. With a delivery range of 0-100 PSIG and a maximum inlet pressure of 3500 PSIG, this regulator is the professional's choice for analytical instrumentation, process control, and laboratory applications.