220-0302 - Silverline 220 Series High Purity Two-Stage Regulator, CGA 320, 0-15 PSIG

Precision Analytical Control for High Purity Applications

The Miller Smith 220-03-02 Silverline High Purity Analytical Two Stage Regulator is engineered to meet the rigorous demands of laboratory and analytical environments. Designed specifically for non-corrosive pure gases and mixtures, this regulator is a critical component for applications requiring absolute stability and cleanliness, such as gas chromatography, thermal conductivity, flame ionization, and electron capture. The 220 Series distinguishes itself with a robust two-stage design, which mechanically compensates for the drop in cylinder pressure as gas is consumed. This ensures that the delivery pressure remains constant at your set point (0-15 PSIG) from a full cylinder down to a nearly empty one, eliminating the need for frequent manual adjustments.

Central to the regulator's performance is its stainless steel diaphragm. Unlike elastomeric diaphragms that can outgas or absorb impurities, the stainless steel construction ensures the integrity of the gas stream is maintained, providing precise pressure control without contamination. This feature is complemented by a filtered seat, which adds another layer of protection against particulate matter, thereby extending the service life of the regulator and ensuring consistent performance over time.

Durability and ease of use are also key aspects of the 220-03-02. The unit is constructed from rugged brass bar stock, providing a solid foundation that is then plated on the body, bonnet, and gauges. This plating offers superior protection against environmental corrosion and maintains a clean, professional appearance suitable for laboratory settings. The large 2-1/2 inch single scale gauges are designed for readability, allowing operators to monitor cylinder and delivery pressure at a glance. Furthermore, the regulator is equipped with a built-in capturable preset safety relief valve, enhancing safety by protecting components from over-pressurization while allowing vented gas to be piped away if necessary. Capable of withstanding vacuums generated during purging operations, this regulator is a versatile and reliable choice for high-purity gas management.