221-4008 - Miller Smith Silverline 220 Series High Purity Two-Stage Regulator CGA 540

Rugged Reliability for High-Purity Needs

When your operation requires more than just standard industrial gas control, the Miller Smith 221-40-08 Silverline Regulator steps up to the challenge. This high-purity, two-stage regulator is built for professionals who demand consistent performance and absolute reliability. Whether you are managing calibration mixtures or specialized carrier gases, the Silverline 220 Series ensures that your delivery pressure remains rock-steady at 0-60 PSIG, regardless of fluctuations in the supply cylinder pressure. This two-stage capability is essential for processes that cannot tolerate the "delivery rise" common in single-stage regulators as tanks deplete.

Miller has constructed this unit to survive the rigors of daily use while maintaining laboratory-grade precision. The regulator features a body machined from solid brass bar stock, which is then plated for enhanced durability and resistance to environmental factors. The internal components are equally impressive, featuring a stainless steel diaphragm that offers superior sensitivity and longevity compared to standard rubber diaphragms. A built-in capturable preset safety relief valve adds an extra layer of safety, protecting both the regulator and downstream equipment from over-pressurization events.

Ease of use is a key focus of the 221-40-08 design. It comes equipped with large 2-1/2 inch gauges that are easy to read at a glance, reducing the chance of operator error. The CGA 540 connection makes it compatible with standard oxygen cylinders and other compatible high-purity gas sources. Furthermore, the filtered seat design prevents debris from entering the seating area, significantly reducing maintenance downtime and extending the lifespan of the unit. For welders and technicians working with high-purity applications, this Miller regulator represents the perfect balance of toughness and precision.