220-4002 - Miller Smith Silverline 220 Series High Purity Two-Stage Regulator CGA 320

Precision Control for Analytical Applications

The Miller Smith 220-40-02 Silverline High Purity Analytical Two Stage Regulator is engineered to meet the rigorous demands of laboratory and analytical environments. Designed specifically for high purity, non-corrosive pure gases and mixtures, this regulator excels in applications where maintaining a constant delivery pressure is critical, such as gas chromatography. Whether utilized for thermal conductivity, flame ionization, flame photometry, or electron capture, the 220 Series ensures that your carrier gases and calibration mixtures are delivered with unwavering stability.

Advanced Two-Stage Design

At the core of this regulator is a sophisticated two-stage design. Unlike single-stage counterparts, this mechanism compensates for the drop in cylinder pressure as the gas is consumed, providing a steady outlet pressure from a full cylinder down to a nearly empty one. This feature is indispensable in analytical settings where pressure fluctuations can compromise data integrity. The unit is also capable of withstanding vacuums generated during purging operations, adding to its versatility in complex gas setups.

Superior Construction and Purity

To maintain the integrity of high-purity gas streams, the 220-40-02 features a stainless steel diaphragm. This material choice not only offers precise control over pressure but also prevents the off-gassing or contamination often associated with elastomeric diaphragms. A filtered seat is integrated into the design to trap particulates, further ensuring gas stream purity and significantly extending the service life of the seat assembly. The rugged brass bar stock body, bonnet, and gauges are fully plated, providing superior protection against environmental corrosion and maintaining a clean, professional appearance suitable for laboratory settings.

Safety and Usability

Safety is paramount in high-pressure gas handling. This regulator includes a built-in capturable preset safety relief valve that protects downstream components and the regulator itself from over-pressurization. For ease of use, it is equipped with large, 2-1/2 inch single scale gauges that are easy to read at a glance. The CGA 320 connection is specifically designed for Carbon Dioxide service, making this an ideal choice for CO2-based analytical processes.