223-4106 - Miller Smith 220 Series Silverline Two-Stage High Purity Regulator, CGA 350, 0-150 PSI

Precision Control for Analytical Applications

The Miller Smith 223-41-06 Silverline High Purity Analytical Two Stage Regulator is an elite instrument designed for the rigorous demands of laboratory and analytical environments. Engineered as part of the renowned 220 Silverline Series, this regulator is specifically calibrated for high purity, non-corrosive pure gases and mixtures. It features a CGA 350 inlet connection, making it suitable for gases such as Hydrogen and Methane, often used in critical carrier gas applications.

At the core of this regulator's performance is its two-stage design. Unlike single-stage counterparts, a two-stage regulator reduces cylinder pressure in two steps, ensuring that the delivery pressure remains constant even as the cylinder pressure drops from full to nearly empty. This characteristic is vital for gas chromatography techniques—including thermal conductivity, flame ionization, flame photometry, and electron capture—where even minor fluctuations in flow or pressure can compromise analytical results.

Construction quality is paramount in the 223-41-06. It utilizes a stainless steel diaphragm which provides a non-contaminating surface for the gas stream, preserving the integrity of high-purity gases. The seat is filtered to trap particulates, further enhancing gas stream purity and extending the service life of the internal components. The body, bonnet, and gauges are fully plated, offering superior protection against environmental corrosion and maintaining a clean, professional appearance suitable for laboratory settings.

Safety and durability are also key features. The unit includes a built-in capturable preset safety relief valve to protect downstream equipment from over-pressurization. Additionally, the rugged brass bar stock construction ensures mechanical strength, while the design allows the regulator to withstand vacuums generated during purging operations, a common procedure in high-purity gas handling. The large 2-1/2 inch single scale gauges provide clear, immediate readouts of both cylinder and delivery pressures, ensuring operators can monitor system status with ease.