123-8407 - Miller Smith Silverline 2-Stage Propane/Natural Gas Regulator 250 PSI CGA 510

Technical Overview of the Miller Smith 123-84-07 Silverline Regulator

The Miller Smith 123-84-07 is a premium component of the Silverline Series, engineered specifically for applications requiring precise pressure control of fuel gases such as Propane and Natural Gas. This regulator features a robust two-stage design, which is critical for maintaining constant delivery pressure. Unlike single-stage regulators that may allow outlet pressure to rise as the cylinder pressure decays (a phenomenon known as the supply-pressure effect), the 123-84-07 compensates for these fluctuations, providing a steady flow rate throughout the life of the cylinder. This makes it an ideal choice for laboratory, general plant, and maintenance shop environments where consistency is paramount.

Constructed from rugged brass bar stock, the body and bonnet are finished with a durable nickel plating. This plating not only enhances the aesthetic appeal but, more importantly, provides superior protection against corrosion and wear in industrial settings. The internal mechanism utilizes a large 1-7/8 inch diaphragm, which affords high sensitivity and precise control over the delivery pressure, adjustable up to 250 PSIG. This high-pressure output capability is particularly suited for heavy-duty heating or cutting applications that demand substantial fuel flow.

A key technical feature of this model is the Sure-Seat technology. This filtered seat design incorporates a high-density filter that traps particulate matter before it can reach the seat assembly. By preventing debris from entering the high-velocity gas stream, the regulator minimizes seat degradation and failure, ensuring gas stream purity and an extended service life. The unit is equipped with a CGA 510 inlet connection and a 9/16-18 Left Hand outlet, adhering to industry standards for fuel gas safety. Large 2-1/2 inch single-scale gauges provide clear, immediate readouts of both cylinder and delivery pressures, enhancing operational safety and efficiency.

Note: While the Silverline series includes models for inert gases, the 123-84-07 is specifically configured with a CGA 510 connection and Left-Hand threads, designating it for use with compatible fuel gases like Propane and Natural Gas.