121-4010 - Miller Smith Silverline 120 Series Two-Stage Inert Gas Regulator, CGA 590, 0-50 PSI

Miller Smith 121-40-10 Silverline Series Two-Stage Regulator

The Miller Smith 121-40-10 is a premium component of the Silverline 120 Series, engineered specifically for general purpose applications requiring the precise control of inert and non-corrosive gases. This two-stage regulator is designed to maintain a constant delivery pressure even as the cylinder pressure decays, making it an essential tool for laboratories, testing facilities, and general plant maintenance where stability is paramount. The unit is calibrated for a delivery range of 0-50 PSIG and features a CGA 590 inlet connection, suitable for gases such as Air, Nitrogen, Carbon Dioxide (CO2), and Argon.

Construction quality is a hallmark of the Miller Smith brand. This regulator features a rugged body machined from brass bar stock, ensuring structural integrity and resistance to deformation under pressure. The body, bonnet, and gauges are plated to provide superior protection against corrosion and wear in industrial environments. Internally, the regulator utilizes a large 1-7/8 inch diaphragm which offers exceptional sensitivity, allowing for fine adjustments and accurate pressure maintenance. The inclusion of Sure-Seat technology further enhances reliability; this filtered seat design prevents debris from entering the seating area, thereby ensuring gas stream purity and significantly extending the service life of the component.

Safety and ease of use are integrated into the design. The regulator includes a preset safety relief valve that vents to the atmosphere, providing a critical safety layer for non-hazardous gas applications. Operators can easily monitor system status via the large 2-1/2 inch single scale gauges, which are designed for clarity and legibility. The body is also tapped for rear panel mounting, offering flexible installation options for fixed systems or bench setups. With a maximum inlet pressure rating of 3500 PSIG, the 121-40-10 stands as a robust solution for professionals demanding consistent performance and longevity in their gas regulation equipment.