221-0107 - Miller Smith Silverline High Purity Analytical Two Stage Regulator, CGA 510, 0-60 PSI

High-Precision Analytical Gas Regulation

The Miller Smith 221-01-07 Silverline High Purity Analytical Two Stage Regulator is engineered to meet the exacting demands of laboratory and analytical environments. Part of the renowned 220 Silverline Series, this regulator is specifically designed for high-purity, non-corrosive pure gases and mixtures. It features a rugged brass bar stock construction that is fully plated—including the body, bonnet, and gauges—to provide superior protection against environmental corrosion and to maintain a clean aesthetic suitable for laboratory settings.

At the core of this regulator's performance is its two-stage design. Unlike single-stage counterparts, this mechanism ensures a constant delivery pressure from a full cylinder down to a nearly empty one, eliminating the need for frequent manual adjustments as the supply pressure decays. This characteristic is critical in analytical applications such as gas chromatography, where stable pressure is required for accurate thermal conductivity, flame ionization, flame photometry, and electron capture results.

The internal components are selected for maximum purity and longevity. A stainless steel diaphragm provides precise control over pressure fluctuations and prevents off-gassing that could contaminate sensitive gas streams. Additionally, the seat is filtered to trap particulates, further enhancing gas stream purity and extending the service life of the regulator. The unit is also designed to withstand vacuums generated during purging operations, ensuring versatility in complex gas management systems. Safety is addressed with a built-in capturable preset safety relief valve that protects downstream components from over-pressurization.

Specifications include a CGA 510 inlet connection, suitable for specific fuel gas applications in analytical contexts, and a delivery pressure range of 0-60 PSIG. The regulator is rated for a maximum inlet pressure of 3500 PSIG, accommodating high-pressure cylinders with ease. Large 2-1/2 inch single-scale gauges provide clear, immediate readouts of both cylinder and delivery pressure.