123-4009 - Miller Smith Silverline 2-Stage Inert Gas Regulator 0-250 PSI CGA 580

Precision Control for Industrial and Laboratory Applications

The Miller Smith 123-40-09 Silverline Series General Purpose Two Stage Regulator is a premium gas control device engineered for environments demanding high precision and reliability. Designed specifically for inert and non-corrosive gases such as Nitrogen, Argon, and Helium, this regulator features a standard CGA 580 inlet connection. As part of the renowned Silverline 120 Series, it embodies the robust engineering Miller Smith is known for, utilizing a rugged brass bar stock body that is fully plated to resist corrosion and wear in tough industrial settings.

The defining feature of the 123-40-09 is its two-stage regulation mechanism. Unlike single-stage regulators that may experience a drop or rise in delivery pressure as the supply cylinder empties, this two-stage unit maintains a constant delivery pressure throughout the life of the cylinder. This makes it an ideal choice for laboratory applications, calibration stations, and precision maintenance tasks where pressure stability is critical. The unit offers a delivery pressure range of 0-250 PSIG, easily adjustable via a smooth-turning control knob.

Internally, the regulator is equipped with a large 1-7/8 inch diaphragm which provides exceptional sensitivity and precise control over the outlet pressure. The Sure-Seat filtered seat technology prevents debris from entering the seating area, significantly extending the service life of the regulator and ensuring gas stream purity. Safety is paramount, and the device includes a preset safety relief valve that vents to the atmosphere, ensuring the regulator remains safe for use with non-hazardous gases. The body is also tapped for rear panel mounting, offering versatile installation options for fixed systems.

Operators will appreciate the large, 2-1/2 inch single-scale gauges that provide clear, at-a-glance readings of both cylinder and delivery pressure. Whether used for general plant maintenance, testing, or specialized manufacturing processes, the Miller Smith 123-40-09 delivers the consistency and durability required by professionals.