200-8300 - Miller Smith Silverline High Purity Analytical Line Regulator, 0-15 PSIG, 1/4" FNPT

Technical Overview of the Miller Smith 200-83-00

The Miller Smith 200-83-00 Silverline High Purity Analytical Line Regulator is a precision-engineered instrument designed specifically for the rigorous demands of laboratory and research environments. This single-stage line regulator is optimized for applications requiring low inlet pressures and exceptional sensitivity, such as those found in gas chromatography, mass spectrometry, and research sampling systems. The unit is constructed from rugged brass bar stock, which is then plated to provide superior protection against environmental factors and to maintain a clean aesthetic suitable for laboratory settings.

A defining feature of the 200-83-00 is its stainless steel diaphragm. Unlike elastomeric diaphragms, stainless steel prevents gas diffusion and absorption, ensuring that the purity of the gas stream is maintained from the source to the instrument. This is critical for high-purity inert and non-corrosive gas applications where even trace contamination can compromise analytical results. The regulator also incorporates a filtered seat mechanism. This design choice not only adds another layer of protection for gas stream purity but also significantly extends the service life of the regulator by preventing particulate damage to the seating surface.

The regulator is equipped with a large, easy-to-read 2-1/2 inch single scale gauge. The gauge range is calibrated from 30" HG vacuum to 30 PSIG, accommodating the specific delivery range of 0-15 PSIG while allowing for vacuum readings during purging operations. The ability to withstand vacuums generated during purging is a key specification for analytical setups that require system evacuation to remove contaminants before introducing the process gas. The body includes 1/4" FNPT inlet and outlet connections and is tapped for rear panel mounting, facilitating seamless integration into gas management panels and benchtop setups.

With a maximum inlet pressure rating of 1200 PSIG, this line regulator provides a robust safety margin, although it is typically installed downstream from a high-pressure source regulator or manifold system. The combination of precise pressure control, diffusion resistance, and durable construction makes the Miller Smith 200-83-00 a reliable choice for critical analytical gas delivery.