222-0309 - Miller Smith Silverline 220 Series Two-Stage Analytical Regulator CGA 580

Precision Control for Analytical Applications

The Miller Smith 222-03-09 Silverline High Purity Analytical Two Stage Regulator is engineered to meet the rigorous demands of laboratory and analytical environments. When working with sensitive instrumentation such as gas chromatographs, thermal conductivity detectors, or flame ionization equipment, maintaining the integrity of the gas stream is paramount. This regulator is specifically designed for high purity, non-corrosive pure gases and mixtures, ensuring that your carrier gases and calibration mixtures are delivered with absolute consistency and cleanliness.

At the core of this regulator's performance is its two-stage design. Unlike single-stage regulators that allow delivery pressure to rise as the cylinder pressure decays, the 222-03-09 maintains a constant delivery pressure from a full cylinder down to nearly empty. This feature is critical for long-duration analytical runs where pressure fluctuations could compromise data integrity. The unit supports a delivery range of 0-100 PSIG, making it versatile for various laboratory requirements while handling inlet pressures up to 3500 PSIG.

Construction quality is a hallmark of the Silverline series. The regulator features a rugged brass bar stock body that is fully plated, along with the bonnet and gauges, to provide superior protection against environmental corrosion and wear. The diaphragm is constructed from stainless steel, a material choice that not only offers precise pressure control but also eliminates the outgassing or absorption issues associated with elastomeric diaphragms. This ensures that the high purity gas remains uncontaminated as it passes through the device. Additionally, a filtered seat is incorporated to trap particulates, further enhancing gas stream purity and extending the service life of the seat mechanism.

Safety and ease of use are also prioritized. The regulator includes a built-in capturable preset safety relief valve to protect downstream components from over-pressurization. The large 2-1/2 inch gauges are easy to read, allowing operators to monitor cylinder and delivery pressure at a glance. Furthermore, the design is robust enough to withstand vacuums generated during purging operations, simplifying cylinder change-outs in high-purity systems.