220-2005 - Miller Smith 220 Series Silverline Two-Stage High Purity Regulator CGA 346

Miller Smith Silverline 220 Series: The Standard for High Purity

When precision cannot be compromised, the Miller Smith 220-20-05 Silverline High Purity Analytical Two Stage Regulator delivers the performance required for sophisticated gas delivery systems. This regulator is part of the renowned Silverline series, known for combining industrial durability with laboratory-grade precision. It is specifically recommended for controlling carrier gases and calibration mixtures in gas chromatography and other analytical instruments where maintaining a specific pressure is critical to the validity of results.

Advanced Two-Stage Technology

The 220-20-05 utilizes a two-stage reduction mechanism. The first stage reduces the high pressure from the cylinder to an intermediate pressure, and the second stage reduces it to the final delivery pressure. This configuration eliminates the "decay" effect seen in single-stage regulators, where delivery pressure rises as the cylinder pressure falls. The result is a rock-steady 0-15 PSI output that remains constant throughout the life of the cylinder. This stability is essential for long-duration tests and automated processes where manual adjustment is not feasible.

Rugged Build with Premium Features

Miller Smith has constructed this regulator to last. The unit features a plated brass body and bonnet, providing a clean, professional appearance that resists tarnishing and corrosion. The internal components are equally impressive, with a stainless steel diaphragm that ensures sensitive pressure response and chemical compatibility with high-purity gases. The inclusion of a 1/4" MNPT needle valve allows for fine-tuning of flow rates directly at the regulator outlet. Furthermore, the automatic reseating safety relief valve protects the internal components from over-pressurization, ensuring both operator safety and equipment longevity. Rated for a maximum inlet pressure of 3500 PSIG and equipped with a CGA 346 connection, this regulator is a top-tier solution for analytical gas management.