212-8203 - Miller Smith Silverline 210 Series High Purity Regulator CGA 326

Technical Overview of the Miller Smith 212-82-03

The Miller Smith 212-82-03 is a precision-engineered single-stage regulator from the renowned 210 Silverline Series, specifically designed for the control of high-purity, non-corrosive gases. This unit is configured with a CGA 326 inlet connection, making it suitable for specific specialty gas applications such as Nitrous Oxide service in analytical environments. The regulator features a maximum inlet pressure rating of 3500 PSI and provides a stable delivery pressure range of 0-100 PSI, ideal for instrumentation that requires consistent low-to-medium pressure flow.

Construction integrity is a hallmark of the Silverline series. The 212-82-03 utilizes a rugged brass bar stock body that is fully plated with nickel—including the bonnet and gauge cases. This plating offers superior protection against atmospheric corrosion and maintains a clean aesthetic suitable for laboratory settings. Internally, the regulator employs a stainless steel diaphragm. Unlike elastomeric diaphragms, stainless steel prevents the absorption and release of contaminants (off-gassing), ensuring that the purity of the gas stream is maintained from the cylinder to the instrument. This makes it an excellent choice for gas chromatography, emission testing, and other sensitive analytical procedures.

Additional technical features include a filtered seat mechanism which traps particulates before they can damage the seating surface, significantly extending the service life of the component. The regulator is also engineered to withstand vacuums generated during purging cycles, a critical requirement for maintaining high-purity lines. A built-in capturable preset safety relief valve provides over-pressure protection, venting safely away from the user and equipment. The body is also tapped, allowing for rear panel mounting in fixed installations.