121-2010 - Miller Smith Silverline 2-Stage Industrial Air Regulator CGA 590

Precision Control for Industrial Air Applications

The Miller Smith 121-20-10 Silverline Series General Purpose Two Stage Regulator is a high-performance gas control device engineered for environments requiring stable and precise delivery pressures. Designed specifically for Industrial Air applications utilizing a CGA 590 inlet connection, this regulator exemplifies the reliability and craftsmanship associated with the Miller and Smith Equipment brands. The two-stage design is critical for applications where maintaining a constant delivery pressure is paramount, regardless of the fluctuating inlet pressure as the gas cylinder empties. This feature makes it an excellent choice for laboratories, testing facilities, and general plant maintenance where consistency is non-negotiable.

Robust Construction and Design

Built to withstand the rigors of daily industrial use, the 121-20-10 features a rugged brass bar stock body. Unlike cast bodies, bar stock offers superior strength and resistance to porosity. The entire assembly, including the body, bonnet, and gauges, is plated to provide enhanced protection against corrosion and wear. The regulator is equipped with a large 1-7/8 inch diaphragm, which is significantly larger than many competitors in its class, allowing for finer sensitivity and more accurate pressure control across its 0-50 PSIG delivery range.

Advanced Filtration and Safety

Incorporating Miller's Sure-Seat technology, the regulator includes a filtered seat that prevents debris and particulate matter from entering the high-pressure seating area. This innovation drastically reduces the risk of seat failure and extends the service life of the unit. Additionally, a preset safety relief valve vents to the atmosphere, adding a layer of safety for non-hazardous gas applications. The unit is rated for a maximum inlet pressure of 3500 PSIG, making it compatible with high-pressure cylinders. The large 2-1/2 inch single-scale gauges are easy to read, ensuring operators can monitor tank and delivery pressures at a glance.