255-2008 - Miller Smith 250 Series Silverline High Purity Regulator CGA 540

High Purity Analytical Regulation for Liquid Cylinders

The Miller Smith 255-20-08 Silverline High Purity Analytical Liquid Cylinder Regulator is a precision instrument engineered for the demanding requirements of laboratory and industrial gas distribution. Part of the renowned 250 Silverline Series, this single-stage regulator is specifically designed to mount on liquid cylinders, facilitating the controlled delivery of gaseous oxygen and other specialty gases compatible with a CGA 540 connection. It features a delivery pressure range of 0-350 PSIG, making it suitable for applications requiring substantial pressure output while maintaining strict purity standards.

Advanced Material Construction

To ensure the integrity of high-purity gas streams, the 255-20-08 is constructed with a rugged brass bar stock body that is fully nickel-plated. This plating extends to the bonnet and gauges, offering superior protection against corrosion and environmental contaminants. At the heart of the regulator lies a large 1-7/8 inch stainless steel diaphragm. Unlike elastomeric diaphragms, stainless steel provides exceptional sensitivity and precise control over outlet pressure, which is critical in analytical applications. Furthermore, the stainless steel construction ensures a long service life even when exposed to the low temperatures often associated with cryogenic gas withdrawal.

Sure-Seat™ Technology

Reliability is paramount in gas handling, and Miller Smith addresses this with their exclusive Sure-Seat™ filtered seat technology. This design incorporates a filter that prevents microscopic particles and contamination from entering the high-pressure seating area. By eliminating debris that could cause seat failure or creep, the Sure-Seat™ system significantly reduces repair costs and minimizes operational downtime, ensuring consistent performance over the life of the unit.

User-Centric Design

The regulator is designed with a back-mount inlet connection, optimizing the orientation for direct attachment to liquid cylinders. This ergonomic configuration simplifies installation and reduces strain on piping systems. Operators will appreciate the large 2-1/2 inch single-scale gauges, which are easy to read from a distance, allowing for quick monitoring of system status. A built-in capturable preset safety relief valve adds an extra layer of protection for personnel and equipment.