623-00020000 - Miller Smith Silverline 620 Series High Purity 2-Stage CO2 Regulator 0-250 PSI

Precision Control for High Purity Applications

The Miller Smith 623-00-02-00-00 Silverline High Purity Brass Two Stage Regulator is engineered for professionals who demand exacting standards in gas delivery. Designed specifically for non-corrosive specialty gases, this regulator excels in applications requiring absolute pressure stability and gas stream purity. The 620 Silverline Series represents the pinnacle of Miller Smith's brass regulator technology, combining robust construction with laboratory-grade performance.

Uncompromised Purity and Construction

At the heart of this regulator is a unique stainless steel diaphragm that provides maximum sensitivity and accuracy. Unlike standard rubber diaphragms, the stainless steel construction prevents off-gassing and contamination, making it ideal for high-purity setups. The body is machined from brass bar stock and nickel-plated to resist diffusion and corrosion, ensuring a long service life even in demanding environments. A metal-to-metal seal between the body and diaphragm further eliminates the need for elastomeric seals that could compromise gas purity.

Reliable Two-Stage Performance

Single-stage regulators often suffer from decaying outlet pressure as the cylinder empties. The Miller Smith 623 Series utilizes a true two-stage design, which steps down pressure in two increments. This ensures that your delivery pressure remains constant at your set point (0-250 PSI) regardless of fluctuations in the inlet pressure (up to 3500 PSI). Whether you are running analytical instruments, laser systems, or precise manufacturing processes, this regulator delivers consistent flow from the start of the cylinder to the bottom.

Safety and Versatility

Safety is paramount in high-pressure gas handling. This model features capturable vents (1/16" FNPT) on the bonnet for both stages, allowing for the safe piping away of gases in the unlikely event of a diaphragm failure. It is also designed to withstand internal vacuums, making it suitable for purge cycles. The CGA 320 connection is specifically designed for Carbon Dioxide (CO2) service, ensuring compatibility with standard industrial and high-purity cylinders.