221-0000 - Miller Smith Silverline 220 Series High Purity Two-Stage Regulator 0-60 PSI

Precision Control for Analytical Applications

The Miller Smith 221-00-00 Silverline High Purity Analytical Two Stage Regulator is engineered for professionals who demand exactitude in their gas delivery systems. Designed specifically for high-purity, non-corrosive gas applications, this regulator is a staple in laboratories and industrial settings where consistency is paramount. The unit features a robust two-stage design, which is critical for applications requiring a constant delivery pressure regardless of fluctuations in the supply cylinder. As a cylinder empties, the pressure drops; a single-stage regulator would allow the outlet pressure to rise (decay), but this two-stage model compensates automatically, ensuring your sensitive equipment receives a steady flow from full to empty.

Superior Materials for Purity

Contamination is the enemy of analytical accuracy. That is why the 220 Silverline series is constructed with a stainless steel diaphragm. Unlike rubber or neoprene diaphragms that can off-gas or absorb impurities, stainless steel provides a non-reactive barrier that preserves the integrity of your carrier gases or calibration mixtures. The body, bonnet, and gauges are fully plated, offering a clean, durable finish that resists environmental corrosion and maintains the high-purity standard required for gas chromatography, flame ionization, and thermal conductivity testing.

Advanced Safety and Usability

Safety and ease of use are built into the core of the 221-00-00. It includes a built-in capturable preset safety relief valve, which protects downstream components from over-pressurization. The regulator is also designed to withstand vacuums generated during purging operations, a common procedure in high-purity gas handling. Operators will appreciate the large, 2-1/2 inch single-scale gauges that make monitoring cylinder and delivery pressure effortless. With a delivery range of 0-60 PSI and a maximum inlet of 3500 PSI, this regulator is versatile enough for a wide range of analytical tasks. The 1/4" FNPT inlet and outlet ports provide flexibility for custom connection configurations, allowing integration into manifolds or specific cylinder setups.