322-85220000 - Miller Smith 320 Series High Purity Stainless Steel Two-Stage Regulator, 0-100 PSI, CGA 330

High Purity Precision for Corrosive Environments

The Miller Smith 320 Series High Purity Two-Stage Regulator (SKU: 322-85-22-00-00) is a premium gas control instrument designed for the most demanding analytical and process applications. Engineered from 316 stainless steel bar stock, this regulator is specifically built to handle corrosive and non-corrosive gases while maintaining the highest levels of stream purity. Its robust construction ensures compatibility with a wide range of specialty gases, making it an essential component for laboratories, research facilities, and industrial chemical processes.

At the heart of the 320 Series is a convoluted stainless steel diaphragm that delivers precise pressure control and exceptional sensitivity. Unlike standard regulators, this unit utilizes a metal-to-metal diaphragm seal, which provides maximum leak integrity—a critical requirement when working with hazardous or expensive gases. The two-stage design is a significant technical advantage, as it compensates for the drop in cylinder pressure as the gas is consumed, ensuring that the delivery pressure remains constant without the need for manual adjustment. This stability is vital for maintaining the accuracy of analytical instruments and process consistency.

Safety and longevity are built into every aspect of the design. The regulator features a 316 stainless steel filtered seat that protects the internal components from particulate damage, extending the unit's service life. Captured vent ports (1/16" FNPT) are integrated into the bonnet for both stages, allowing users to pipe hazardous fumes away safely in the event of a diaphragm failure. Additionally, the regulator is designed to withstand internal vacuums, facilitating effective purging operations during cylinder changes. With a delivery range of 0-100 PSIG and a CGA 330 inlet, this regulator is the professional's choice for high-purity gas management.