221-2008 - Miller Smith Silverline 220 Series High Purity Oxygen Regulator CGA 540

Reliable Gas Delivery for Critical Operations

When your work demands absolute consistency and reliability, the Miller Smith 221-20-08 Silverline Regulator delivers. While often used in laboratory settings, this high-purity two-stage regulator is built with the durability required for tough industrial environments where precision cannot be compromised. The "Two-Stage" mechanism is the standout feature for professionals who need a set-it-and-forget-it solution; it automatically compensates for the drop in cylinder pressure as you work, maintaining a steady outlet pressure without the need for constant manual readjustment. This is particularly useful in long-duration processes where pressure drift could ruin a workpiece or invalidate a test.

Built to Last

Miller Smith is synonymous with quality, and the Silverline 220 Series is no exception. The body is constructed from solid brass bar stock, providing a heavy-duty foundation that resists mechanical stress. To further enhance durability, the entire exterior—including the body, bonnet, and gauge casings—is plated. This plating acts as a shield against corrosion and shop grime, keeping the tool looking professional and functioning smoothly. The large 2-1/2 inch gauges are designed for visibility, featuring clear, single-scale dials that are easy to read even from a distance, reducing the chance of reading errors.

High Performance Features

The 221-20-08 is equipped with a CGA 540 connection, standard for Oxygen service. It features a stainless steel diaphragm, which provides a distinct advantage over rubber diaphragms by offering more precise pressure control and greater resistance to temperature fluctuations. The regulator also includes a filtered seat to trap debris before it can damage the internal seating surface, significantly prolonging the life of the regulator. For added safety, an automatic reseating relief valve is built into the body, protecting your equipment from pressure spikes. Whether you are managing calibration gases or running specialized fabrication equipment requiring high-purity oxygen, this regulator offers the control and durability you expect from Miller.

Application Versatility

With a max inlet pressure rating of 3500 PSI and a delivery range of 0-50 PSI, this regulator handles standard high-pressure cylinders with ease. It is capable of withstanding vacuum purging, making it suitable for systems that require evacuation prior to gas introduction. Trust the Miller Smith 221-20-08 for applications where "good enough" isn't an option.