320-70220000 - Miller Smith 320 Series High Purity Stainless Steel Two-Stage Regulator, CGA 330, 0-25 PSI

High Purity Control for Corrosive Environments

The Miller Smith 320 Series High Purity Two-Stage Regulator is engineered specifically for the precise management of corrosive and non-corrosive specialty gases. Model 320-70-22-00-00 features a robust 316 stainless steel bar stock body and a convoluted stainless steel diaphragm, ensuring compatibility with aggressive media while maintaining high gas stream purity. The regulator utilizes a metal-to-metal diaphragm seal, which provides maximum leak integrity essential for handling hazardous gases. Wetted parts, including the 316 stainless steel filtered seat and PCTFE seating material, are selected to extend service life and prevent contamination.

Designed for critical applications, this two-stage regulator delivers constant outlet pressure regardless of fluctuations in the inlet pressure, making it ideal for analytical instrumentation and process control. It supports a delivery range of 0-25 PSI and can handle a maximum inlet pressure of 3500 PSI. The unit is equipped with a CGA 330 connection, suitable for specific corrosive gas services. Safety is paramount in the 320 Series design; it includes captured vent ports (1/16" FNPT) in the bonnet to allow for the safe piping and venting of hazardous gases in the unlikely event of a diaphragm failure. Furthermore, the regulator is designed to withstand internal vacuums, facilitating effective purging operations when used with a cross-purge assembly.

The regulator features large, easy-to-read 2-1/2 inch single scale gauges and threaded bonnets for front panel mounting, offering versatility in installation. Whether for laboratory research, semiconductor manufacturing, or chemical processing, the Miller Smith 320 Series provides the reliability and precision required for high-purity gas delivery systems.