320-70230000 - Miller Smith 320 Series High Purity SS Regulator CGA 350

Miller Smith 320 Series High Purity Two-Stage Regulator

The Miller Smith 320-70-23-00-00 is a premium high-purity, two-stage regulator engineered for the precise control of both corrosive and non-corrosive gases. Part of the distinguished 320 Silverline Series, this regulator is designed to meet the rigorous demands of laboratory, analytical, and specialty gas applications where gas purity and stable delivery pressure are paramount. The unit features a robust 316 stainless steel bar stock body and wetted parts, ensuring exceptional resistance to corrosion and minimizing particle contamination within the gas stream.

At the core of the 320 Series is its advanced two-stage regulation mechanism. Unlike single-stage counterparts, this design compensates for the drop in cylinder pressure as the gas is consumed, providing a constant and unwavering delivery pressure without the need for frequent manual adjustments. This is critical for analytical processes that require a steady flow rate over long periods. The regulator utilizes a convoluted stainless steel diaphragm that offers superior sensitivity and response to pressure changes, coupled with a metal-to-metal diaphragm seal that ensures maximum leak integrity—a vital feature when handling expensive or hazardous gases.

Safety and longevity are built into every aspect of the design. The regulator includes a 316 stainless steel filtered seat which not only protects the internal components from particulate damage but also maintains the purity of the gas stream. For applications involving hazardous or toxic gases, the bonnet is equipped with captured vent ports (1/16” FNPT) on both stages, allowing for the safe piping and venting of gases in the unlikely event of a diaphragm failure. Furthermore, the regulator is engineered to withstand internal vacuums, making it suitable for purging operations essential during cylinder changeovers. The large, 2-1/2 inch single-scale gauges provide clear and accurate readings, ensuring operators can monitor system status at a glance.

This specific model comes equipped with a CGA 350 inlet connection, typically used for flammable gases such as Hydrogen, Carbon Monoxide, or Ethylene mixtures, and offers a delivery pressure range from 30 inches Hg vacuum up to 30 PSIG. It is rated for a maximum inlet pressure of 3500 PSIG.