223-4009 - Miller Smith Silverline 220 Series High Purity Two-Stage Regulator CGA 580

High Precision Analytical Gas Control

The Miller Smith 223-40-09 Silverline High Purity Analytical Two Stage Regulator is engineered to meet the rigorous demands of laboratory and analytical environments. Designed for applications where gas purity and pressure stability are paramount, this regulator features a stainless steel diaphragm that prevents contamination and ensures precise control over delivery pressure. The two-stage design is critical for analytical work, as it compensates for the drop in cylinder pressure as the gas is consumed, maintaining a steady outlet pressure without the need for constant manual adjustment. This makes it an ideal choice for gas chromatography, including thermal conductivity, flame ionization, flame photometry, and electron capture detectors.

Constructed from rugged brass bar stock, the body and bonnet are fully plated to provide superior protection against environmental corrosion and wear. The internal design includes a filtered seat which not only adds another layer of protection for gas stream purity but also significantly extends the service life of the regulator by preventing particulate damage. The regulator is equipped with large, easy-to-read 2-1/2 inch single scale gauges, allowing operators to monitor cylinder and delivery pressure with accuracy. Safety is addressed with a built-in capturable preset safety relief valve that protects components from over-pressurization. Furthermore, the unit is robust enough to withstand vacuums generated during purging operations, a common requirement in high-purity gas handling.

With a delivery range suitable for up to 150 PSI (gauged 0-200) and a maximum inlet pressure of 3500 PSI, this regulator is versatile for various inert gas cylinders utilizing a CGA 580 connection. Whether used for carrier gases or calibration mixtures, the Miller Smith 223-40-09 delivers the reliability and consistency required for sensitive instrumentation.