623-40080000 - Miller Smith Silverline 620 Series High Purity Oxygen Regulator 250 PSI

Precision Control for Specialty Gas Applications

The Miller Smith 623-40-08-00-00 Silverline High Purity Brass Two Stage Regulator is engineered for professionals demanding exacting standards in gas delivery. Part of the renowned 620 Silverline Series, this regulator is specifically designed for non-corrosive gases where maintaining gas stream purity and precise pressure control is paramount. The unit features a robust nickel-plated brass bar stock body that provides excellent durability while minimizing the risk of atmospheric diffusion, ensuring that the gas quality remains uncompromised from the cylinder to the application point.

At the heart of this regulator is a specially designed stainless steel diaphragm. Unlike elastomeric diaphragms that can off-gas or degrade over time, the stainless steel construction offers superior chemical resistance and ensures maximum accuracy in pressure regulation. The metal-to-metal seal between the body and the diaphragm further enhances the leak integrity of the system, a critical factor when handling high-purity gases. Additionally, the seat is filtered with a 316 stainless steel filter, adding another layer of protection against particulate contamination that could disrupt sensitive downstream equipment.

This two-stage regulator excels in providing a constant outlet pressure of up to 250 PSI, regardless of fluctuations in the inlet pressure as the supply cylinder empties. With a maximum inlet pressure rating of 3500 PSI and a CGA 540 connection, it is perfectly suited for standard high-pressure oxygen cylinders used in laboratory and industrial settings. Safety is also a key focus, with capturable 1/16" FNPT vent ports provided on the bonnet, allowing for the safe venting of gases in the unlikely event of a diaphragm failure. The regulator is also capable of withstanding internal vacuums, making it compatible with standard purging operations required in high-purity systems.