220-2009 - Miller Smith Silverline 220 Series High Purity 2-Stage Regulator CGA 580

Precision Control for Analytical Applications

The Miller Smith 220-20-09 Silverline High Purity Analytical Two Stage Regulator is engineered for the most demanding laboratory and industrial applications where gas purity and pressure stability are paramount. Part of the renowned Silverline 220 Series, this regulator is specifically designed to handle high purity, non-corrosive pure gases and mixtures. It is the ideal choice for controlling carrier gases or calibration mixtures used in sensitive gas chromatography processes, including thermal conductivity, flame ionization, flame photometry, and electron capture detectors.

At the heart of this regulator is a stainless steel diaphragm that ensures precise control of pressure while maintaining the integrity of the gas stream. Unlike standard rubber diaphragms, stainless steel prevents off-gassing and contamination, which is critical when working with analytical instruments. The two-stage design is a significant advantage for professionals requiring consistency; it reduces the cylinder pressure in two steps, allowing for a constant delivery pressure from a full cylinder down to a nearly empty one. This eliminates the need for constant manual adjustments as the supply cylinder depletes, ensuring your processes run smoothly without interruption.

Durability and safety are built into the core of the 220-20-09. The unit features a rugged brass bar stock construction that is fully plated—including the body, bonnet, and gauges—to provide superior protection against corrosion and wear. A filtered seat adds another layer of reliability by trapping particulates that could damage the seat or contaminate the gas stream, thereby extending the service life of the regulator. Additionally, the built-in capturable preset safety relief valve protects components from over-pressurization, and the design is robust enough to withstand vacuums generated during purging operations. With large, easy-to-read 2-1/2 inch single scale gauges, monitoring your system is effortless.