621-40030000 - Miller Smith Silverline 620 Series High Purity 2-Stage Regulator, CGA 326, 0-60 PSI

Miller Smith 620 Silverline Series: The Standard for Purity

When your operation demands absolute precision and contamination-free gas delivery, the Miller Smith 621-40-03-00-00 Two Stage Regulator is the professional's choice. Designed for use with CGA 326 specialty gases (such as Nitrous Oxide), this regulator combines rugged industrial build quality with laboratory-grade performance. The "Two-Stage" designation means this device steps down high cylinder pressure in two distinct phases. This dual-reduction method ensures that your output pressure remains rock-steady at your set point (0-60 PSIG), even as your gas cylinder empties. This eliminates the need for constant manual adjustments and prevents pressure spikes that could damage sensitive downstream equipment.

Built to Last, Built for Purity

The Silverline 620 Series stands out with its nickel-plated brass bar stock construction. This material choice provides the strength of brass with the enhanced corrosion resistance and cleanliness of nickel plating. Inside, a stainless steel diaphragm replaces standard rubber components. This is crucial for high-purity applications because rubber can absorb and release atmospheric contaminants or off-gas into your process stream. The metal-to-metal seal ensures that the gas you receive at the outlet is exactly as pure as the gas in the cylinder. A built-in 10-micron filter adds an extra layer of defense, catching any debris before it reaches the regulator seat.

User-Friendly Features

This model comes equipped with a 1/4" FNPT outlet and includes a needle valve (indicated by the configuration) for fine flow control. The large 2-1/2 inch gauge is easy to read from a distance, helping operators monitor system status at a glance. For facilities with strict safety protocols, the bonnet features a capturable vent port, enabling the connection of vent lines to route gases safely to an exhaust system in the rare event of a diaphragm failure. With a max inlet rating of 3500 PSI, this regulator is ready for high-pressure cylinders and demanding daily use. Trust Miller Smith for reliable, high-purity gas regulation.