623-42060000 - Miller Smith 620 Series Silverline High Purity Regulator, CGA 350, 0-250 PSI, 2-Stage

Precision Control for Analytical Applications

The Miller Smith 623-42-06-00-00 Silverline High Purity Brass Two Stage Regulator is engineered for laboratory and industrial applications requiring the utmost stability and cleanliness. Part of the renowned 620 Silverline Series, this regulator is specifically designed for non-corrosive specialty gases such as Hydrogen, Methane, and Carbon Monoxide, utilizing a CGA 350 inlet connection. Its primary function is to provide a constant, unwavering delivery pressure ranging from 0 to 250 PSIG, regardless of fluctuations in the supply cylinder pressure—a critical feature for gas chromatography, emission monitoring, and other sensitive analytical processes.

High Purity Construction

Contamination is the enemy of analytical accuracy. This regulator features a nickel-plated brass bar stock body and a 316 stainless steel diaphragm. Unlike standard industrial regulators that may use rubber diaphragms, the stainless steel diaphragm prevents off-gassing and absorption, ensuring the gas stream remains pure. The body-to-diaphragm seal is metal-to-metal, eliminating the need for O-rings that could introduce impurities. Additionally, a filtered seat mechanism protects the internal components from particulate damage, further enhancing reliability and service life.

Safety and Versatility

Safety is paramount when handling flammable gases like Hydrogen. The bonnet features a captured 1/16" FNPT vent port, allowing users to pipe vented gases away to a safe location in the rare event of a diaphragm failure. This model is also capable of withstanding internal vacuums, making it suitable for purge cycles. The outlet is equipped with a 1/8" tube fitting and a stainless steel needle valve, providing precise flow control directly at the regulator. With a maximum inlet pressure rating of 3500 PSIG, this regulator is built to handle high-pressure cylinders with ease.