220-4106 - Miller Smith 220 Series Silverline High Purity Regulator CGA 350 15 PSI

Precision Control for Analytical Applications

The Miller Smith 220-41-06 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. It is particularly well-suited for controlling carrier gases or calibration mixtures used in gas chromatography techniques, including thermal conductivity, flame ionization, flame photometry, and electron capture detection.

Uncompromised Purity and Stability

At the core of the 220 Series is a stainless steel diaphragm that ensures precise pressure control while preventing contamination of the gas stream. Unlike elastomeric diaphragms that can outgas or absorb impurities, the stainless steel construction maintains the integrity of high-purity gases. The regulator also features a filtered seat, which not only enhances gas stream purity but also extends the service life of the unit by protecting the seating mechanism from particulate damage. This attention to detail ensures that your analytical results remain accurate and reproducible.

Two-Stage Performance

The 220-41-06 utilizes a true two-stage design, which is critical for applications where constant delivery pressure is non-negotiable. As a gas cylinder empties, the inlet pressure drops significantly. In single-stage regulators, this drop can cause the outlet pressure to rise (the decaying inlet characteristic). The two-stage mechanism of the Miller Smith 220 Series compensates for these fluctuations, providing a steady 0-15 PSI delivery pressure from a full cylinder down to nearly empty. This stability allows researchers and technicians to focus on their work without constantly adjusting regulator settings.

Robust Construction

Despite its delicate precision, the Silverline regulator is built to last. It features rugged brass bar stock construction for the body and bonnet, all of which are plated for superior protection against corrosion and wear. The large 2-1/2 inch single scale gauges are easy to read, allowing for quick verification of cylinder and delivery pressures. Additionally, the unit includes a built-in capturable preset safety relief valve, protecting downstream equipment from over-pressurization. The design is also robust enough to withstand vacuums generated during purging operations, making it a versatile tool for complex gas delivery systems.