256-0000 - Miller Smith 250 Silverline High Purity Liquid Cylinder Regulator, 0-500 PSI, 1/4" FNPT

Precision Control for Analytical Applications

The Miller Smith 256-00-00 Silverline High Purity Analytical Liquid Cylinder Regulator is a premium instrument engineered for the rigorous demands of laboratory and high-purity gas distribution systems. Part of the renowned 250 Silverline Series, this single-stage regulator is specifically configured for use with liquid cylinders, featuring a rear-entry inlet that simplifies connection geometry and reduces strain on piping systems. The unit provides a substantial delivery pressure range of 0-500 PSIG, making it versatile for various analytical and process applications where higher delivery pressures are required from bulk sources.

Advanced Materials and Construction

Constructed from rugged brass bar stock, the entire assembly—including the body, bonnet, and gauges—is nickel-plated. This plating serves a dual purpose: it maintains the aesthetic cleanliness required in laboratory environments and provides a robust shield against corrosion, significantly extending the service life of the hardware. At the heart of the regulator is a large 1-7/8 inch stainless steel diaphragm. Unlike elastomeric diaphragms, stainless steel offers superior resistance to gas absorption and desorption, ensuring that the purity of the gas stream remains uncompromised. This material choice is particularly critical in cryogenic applications where temperature fluctuations and material integrity are paramount.

Reliability and Maintenance

One of the standout features of this model is Smith's exclusive Sure-Seat™ technology. This filtered seat design actively prevents particulate contamination from entering the critical seating area. By filtering out debris before it can cause damage, the Sure-Seat™ system drastically reduces the frequency of repairs and minimizes operational downtime. The regulator also includes large 2-1/2 inch single-scale gauges, which improve readability from a distance, allowing technicians to monitor system status without approaching the immediate hazard area. With a maximum inlet pressure rating of 3500 PSIG and 1/4" FNPT connections, this regulator is a robust solution for managing gas delivery from liquid sources.