221-4210 - Miller Smith Silverline 220 Series High Purity Two-Stage Regulator CGA 590

Precision Control for Analytical Applications

The Miller Smith 221-42-10 Silverline High Purity Analytical Two Stage Regulator is engineered specifically for the rigorous demands of laboratory and analytical environments. When working with high-purity gases for applications such as gas chromatography, thermal conductivity, or flame ionization, maintaining the integrity of the gas stream is paramount. This regulator features a high-quality stainless steel diaphragm which prevents contamination and off-gassing that can occur with elastomeric diaphragms, ensuring that your carrier gases and calibration mixtures remain pure from the cylinder to the instrument.

Consistent Delivery Pressure

One of the critical challenges in analytical work is maintaining a stable flow rate and pressure as the gas supply diminishes. The 221-42-10 utilizes a robust two-stage design. The first stage reduces the high pressure from the cylinder to an intermediate level, while the second stage regulates it down to your precise working pressure (0-50 PSI). This configuration allows for constant delivery pressure regardless of fluctuations in the cylinder pressure, meaning you can utilize the entire contents of a cylinder without experiencing the "decay" effect common in single-stage regulators.

Designed for Durability and Safety

Safety and longevity are built into the Silverline series. The body, bonnet, and gauges are fully plated to resist corrosion and wear, maintaining a clean appearance and function even in demanding settings. The unit includes a built-in capturable preset safety relief valve to protect components from over-pressurization. Additionally, the regulator is designed to withstand vacuums generated during purging operations, a necessary step in maintaining high-purity gas lines. With a CGA 590 connection, this regulator is ready for specific industrial air and specialty gas cylinders requiring this standard fitting.