623-01020000 - Miller Smith Silverline 620 Series 2-Stage High Purity CO2 Regulator, 0-250 PSI

Precision Control for High Purity Applications

The Miller Smith 623-01-02-00-00 Silverline High Purity Brass Two Stage Regulator is engineered for the rigorous demands of analytical laboratories and specialty gas delivery systems. Designed specifically for non-corrosive gases like Carbon Dioxide (CO2), this regulator features a CGA 320 inlet connection and delivers a precise outlet pressure range of 0-250 PSI. As part of the 620 Silverline Series, it is constructed from high-grade brass bar stock that is nickel-plated to resist corrosion and maintain a pristine appearance over years of service.

The core of this regulator's performance lies in its two-stage architecture. Unlike single-stage regulators that experience a rise in delivery pressure as the supply cylinder empties (the decaying inlet characteristic), this two-stage unit provides a constant, unwavering outlet pressure regardless of inlet fluctuations. This stability is paramount for applications such as gas chromatography, carrier gas regulation, and other sensitive analytical procedures where pressure variance can compromise results.

Purity is maintained through a specialized 316 stainless steel diaphragm. This diaphragm utilizes a metal-to-metal seal with the regulator body, eliminating the need for elastomeric seals that can off-gas or absorb contaminants. This design ensures that the gas stream remains as pure at the outlet as it was in the cylinder. Additionally, the regulator includes a filtered seat to protect the internal mechanism from particulate damage and a capturable vent (1/16" FNPT) on the bonnet, allowing for the safe piping away of vented gases in the event of a diaphragm failure. Rated for a maximum inlet pressure of 3500 PSI, this regulator is a robust solution for high-purity gas management.