620-20060000 - Miller Smith 620 Series High Purity 2-Stage Regulator CGA 350

Precision Control for High Purity Applications

The Miller Smith 620-20-06-00-00 Silverline High Purity Brass Two Stage Regulator is engineered for the rigorous demands of analytical laboratories and specialty gas management. Designed specifically for non-corrosive gases such as Hydrogen and Methane (CGA 350), this regulator ensures the integrity of your gas stream through advanced materials and construction. At the heart of the 620 Series is a specially designed stainless steel diaphragm. Unlike elastomeric diaphragms that can outgas or permeate contaminants, stainless steel provides a non-reactive barrier that maintains the purity of the gas being delivered. This is critical for applications like gas chromatography where even trace impurities can skew results.

Stability is paramount in precision applications, and the two-stage design of this regulator delivers unwavering performance. By reducing pressure in two steps, the regulator compensates for the "decay" effect seen in single-stage models, where outlet pressure rises as the cylinder empties. The result is a constant delivery pressure of 0-25 PSI throughout the life of the cylinder, eliminating the need for constant manual adjustments. The unit features a metal-to-metal body-to-diaphragm seal, further reducing leak rates and ensuring a tight, secure system. For added safety and versatility, the bonnet includes a capturable vent (1/16" FNPT), allowing for the safe piping of hazardous gases away from the work area in the unlikely event of a diaphragm failure.

Constructed from nickel-plated brass bar stock, the body offers excellent durability and corrosion resistance suitable for laboratory environments. The regulator is also designed to withstand internal vacuums, making it compatible with purging operations essential for maintaining system purity. Equipped with a 316 stainless steel filter and a high-quality needle valve, the Miller Smith 620 Series represents the gold standard in high-purity brass regulation.