120-2009 - Miller Smith Silverline 120 Series Two-Stage Regulator, CGA 580, 0-30 PSI

Technical Overview of the Miller Smith 120-20-09

The Miller Smith 120-20-09 is a premium General Purpose Two-Stage Regulator from the Silverline 120 Series, engineered specifically for the precise control of inert and non-corrosive gases. This unit is compatible with Air, Nitrogen, CO2, and Argon, making it a versatile component for laboratory and industrial environments. The regulator features a CGA 580 inlet connection and is rated for a maximum inlet pressure of 3500 PSIG. Its delivery pressure range is calibrated from 0 to 30 PSIG, allowing for fine-tuned adjustments in low-pressure applications.

Constructed from rugged brass bar stock, the body, bonnet, and gauges are plated to provide superior protection against corrosion and wear. The internal mechanism utilizes a large 1-7/8 inch diaphragm which enhances sensitivity and ensures precise control over the outlet pressure. A key technical feature is the Sure-Seat technology, which incorporates a filtered seat to prevent debris from entering the seating area, thereby extending the service life of the regulator and maintaining gas stream purity. The unit is also designed with a rear panel mounting capability, adding flexibility to installation configurations.

As a two-stage regulator, the 120-20-09 reduces cylinder pressure in two steps, ensuring that the delivery pressure remains constant even as the cylinder pressure drops during use. This characteristic is critical for analytical applications where pressure stability is paramount. The regulator is equipped with large 2-1/2 inch single scale gauges that are easy to read, providing immediate visual feedback on both cylinder and delivery pressures.