320-00220000 - Miller Smith 320 Series High Purity Stainless Steel Regulator, 2-Stage, CGA 330, 0-25 PSI

High Purity Gas Control for Corrosive Applications

The Miller Smith 320 Series High Purity Two-Stage Regulator is engineered to meet the rigorous demands of specialty gas delivery, specifically for corrosive and non-corrosive applications. Constructed from 316 stainless steel bar stock, this regulator ensures the highest level of corrosion resistance and gas stream purity. The wetted parts, including the body and filtered seat, are manufactured from 316 stainless steel and PCTFE, making it compatible with a wide range of hazardous and reactive gases. This model features a CGA 330 connection and delivers a precise pressure range of 0-25 PSI, suitable for sensitive analytical instruments and process control.

Technical precision is achieved through a convoluted stainless steel diaphragm that provides superior sensitivity and control accuracy. The regulator utilizes a unique metal-to-metal diaphragm seal, eliminating the need for elastomeric seals that can degrade or contaminate the gas stream. This design ensures maximum leak integrity, a critical factor when handling toxic or high-purity gases. The two-stage configuration provides a constant delivery pressure regardless of fluctuations in the inlet pressure, ensuring stable performance throughout the life of the cylinder. The unit is rated for a maximum inlet pressure of 3500 PSI.

Safety and integration are key components of the 320 Series design. The bonnet is equipped with a captured vent port (1/16" FNPT), allowing for the safe piping and venting of hazardous gases in the unlikely event of a diaphragm failure. Additionally, the front and rear bonnets are threaded to facilitate front panel mounting, making this regulator highly adaptable for laboratory benches, gas cabinets, and integrated systems. A 316 stainless steel filtered seat is incorporated to trap particulates, further protecting the regulator's internal components and extending its service life.