Miller Smith 320 Series High Purity Stainless Steel Regulator, CGA 660, 50 PSI

Reliable Precision for Specialty Gas Applications

When your work involves specialty gases that demand absolute purity and precise flow control, the Miller Smith 320 Series High Purity Two-Stage Regulator is the tool you can trust. Built for professionals who cannot afford fluctuations or contamination, this regulator combines rugged durability with sensitive control mechanisms. The two-stage design is a "set it and forget it" solution; it automatically compensates for the drop in cylinder pressure as you work, ensuring your delivery pressure remains rock-steady at 50 PSI (or your set point) from a full tank down to empty.

Durability is built into every component. The 316 stainless steel construction isn't just for looks—it provides the necessary chemical resistance to handle corrosive gases safely. Whether you are setting up a purge system, running a specialized welding mix, or managing lab gases, the corrosion-resistant internals ensure the regulator won't degrade over time. The convoluted stainless steel diaphragm offers immediate response to pressure changes, giving you fine-tuned control over your gas flow.

Miller Smith has also prioritized safety in this design. The unit includes captured vent ports, allowing you to pipe vented gases away from the workspace, which is essential when working with hazardous fumes. The large, easy-to-read gauges mean you can check your status at a glance without squinting. Note that for hazardous gas traces, a Cross Purge Assembly is recommended for use with this series to ensure safety during cylinder swaps. Invest in the 321-85-25-00-00 for a regulator that works as hard and as precisely as you do.