256-8209 - Miller Smith Silverline 250 Series Liquid Cylinder Regulator CGA 580 500 PSI

High Purity Analytical Liquid Cylinder Regulator

The Miller Smith 256-82-09 is a premium offering from the Silverline 250 Series, engineered specifically for high-purity analytical applications and liquid cylinder gas distribution. This single-stage regulator is meticulously designed to manage the unique challenges of cryogenic gas withdrawal, ensuring a stable and contaminant-free flow. At the core of its performance is the exclusive Sure-Seat™ filtered seat technology. This proprietary design filters out microscopic particles that often cause seat failure in standard regulators, significantly extending the service life of the unit and reducing maintenance downtime.

Constructed from rugged brass bar stock, the entire assembly—including the body, bonnet, and gauges—is fully nickel-plated. This plating not only provides a professional, clean aesthetic suitable for laboratory environments but also offers superior protection against corrosion and environmental wear. The regulator features a back-mount inlet connection, a critical ergonomic feature that simplifies the connection process to liquid cylinders (dewars), which often have awkward valve positioning. This orientation reduces strain on the piping and allows the gauges to remain easily visible to the operator.

Precision pressure control is achieved through a large 1-7/8 inch stainless steel diaphragm. Unlike neoprene or rubber diaphragms, stainless steel is impervious to the temperature fluctuations inherent in cryogenic boil-off applications and does not off-gas, preserving the purity of the gas stream. The unit is equipped with large 2-1/2 inch single-scale gauges that are easy to read from a distance, enhancing safety and monitoring capabilities. With a maximum inlet pressure of 3500 PSI and a delivery range of 0-500 PSI, this regulator is perfectly suited for managing inert gases like Argon, Nitrogen, and Helium via its CGA 580 connection.