221-4009 - Miller Smith 220 Series Silverline High Purity Two-Stage Regulator, CGA 580, 0-60 PSI

Precision Control for Analytical Applications

The Miller Smith 221-40-09 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 is an essential component for applications requiring absolute stability and cleanliness, such as gas chromatography, thermal conductivity, flame ionization, and electron capture. The core of its performance lies in its two-stage design, which reduces cylinder pressure in two steps. This mechanism ensures that the delivery pressure remains constant even as the cylinder pressure drops from full to nearly empty, eliminating the need for frequent manual adjustments during critical processes.

Contamination control is paramount in analytical settings, and the 221-40-09 addresses this with a stainless steel diaphragm. Unlike rubber or neoprene diaphragms that can off-gas or absorb impurities, the stainless steel construction maintains the integrity of the gas stream, ensuring that your calibration mixtures and carrier gases remain pure. Additionally, the regulator features a filtered seat that traps particulates, further enhancing gas stream purity and extending the service life of the internal components. The body, bonnet, and gauges are fully plated, providing superior protection against corrosion and maintaining a clean, professional appearance suitable for laboratory installation.

Operational safety and ease of use are also key features of the Silverline series. The regulator is equipped with large, 2-1/2 inch single-scale gauges that are easy to read at a glance, allowing operators to monitor cylinder and delivery pressure with precision. A built-in capturable preset safety relief valve protects the regulator components from over-pressurization, adding a layer of safety to your gas delivery system. With a maximum inlet pressure of 3500 PSI and a delivery range of 0-60 PSI, this regulator is robust enough to handle standard high-pressure cylinders while providing the delicate low-pressure control needed for sensitive analytical instruments.