823-6628 - Miller Smith 820 Silverline High Pressure Piston Regulator, 0-500 PSI, CGA 680

Miller Smith 823-66-28 Silverline High Pressure Analytical Regulator

The Miller Smith 823-66-28 is a premium component of the 820 Silverline series, engineered specifically for the rigorous demands of high-pressure analytical and specialty gas delivery. Designed to manage non-corrosive inert gases, this single-stage regulator combines the durability of industrial equipment with the precision required for laboratory and R&D environments. The unit features a robust brass construction that is fully nickel-plated—covering the body, bonnet, and gauges—to offer superior protection against corrosion and wear, significantly extending the service life of the device in challenging atmospheres.

At the core of the 823-66-28 is a reliable piston sensor design. Unlike diaphragm sensors which can be sensitive to pressure spikes, the piston mechanism provides structural integrity and consistent performance even when subjected to maximum inlet pressures of up to 6000 PSIG. This makes it an ideal choice for high-pressure testing, charging, and purging applications. The regulator delivers a precise output range of 0-500 PSIG, controlled by a low-torque adjusting screw. This self-relieving screw is engineered to permit easy pressure adjustments even in closed or dead-end systems, reducing operator fatigue and improving process control.

Safety and integration are key aspects of the Silverline series. The bonnet features a captured vent port (1/16 inch FNPT), allowing users to pipe vented gases away from the work area—a critical feature for maintaining safety standards in enclosed laboratories or manufacturing plants. Additionally, the body is tapped for rear panel mounting, facilitating seamless integration into control panels or gas management systems. The large 2-1/2 inch single-scale gauges provide clear, legible readings from a distance, ensuring operators can monitor system status at a glance. All units are 100% tested at maximum rated operating pressure and cleaned for oxygen service, ensuring they meet the highest standards of cleanliness and reliability right out of the box.