222-2006 - Miller Smith Silverline 220 Series High Purity Two-Stage Regulator CGA 350

Precision Control for Analytical Applications

The Miller Smith 222-20-06 Silverline High Purity Analytical Two Stage Regulator is engineered for applications demanding the highest levels of gas stream purity and pressure stability. Designed specifically for non-corrosive pure gases and mixtures, this regulator is a staple in laboratories and industrial settings utilizing gas chromatography, including thermal conductivity, flame ionization, flame photometry, and electron capture processes. Its robust two-stage design ensures that delivery pressure remains constant from a full cylinder down to nearly empty, eliminating the need for constant manual adjustments and ensuring process consistency.

At the core of the 222-20-06 is a stainless steel diaphragm which provides superior sensitivity and precise control over outlet pressure compared to standard elastomeric diaphragms. This material choice also minimizes off-gassing and contamination, critical for high-purity analytical work. The regulator features a filtered seat that further protects the gas stream from particulate contamination while extending the service life of the internal components. The body, bonnet, and gauges are fully plated, offering enhanced protection against environmental corrosion and maintaining a clean, professional appearance suitable for laboratory environments.

Safety and durability are paramount in the Silverline 220 Series. The unit includes a built-in capturable preset safety relief valve that protects downstream equipment and the regulator itself from over-pressurization. Constructed from rugged brass bar stock, it is built to withstand the rigors of daily use while maintaining the tight tolerances required for analytical work. The large 2-1/2 inch single scale gauges are easy to read, allowing operators to monitor cylinder and delivery pressure at a glance. Additionally, the design is capable of withstanding vacuums generated during purging operations, making it versatile for various setup procedures.