827-6628 - Miller Smith 820 Silverline High Pressure Piston Regulator, 0-6000 PSI, CGA 680

Precision High-Pressure Control for Analytical Applications

The Miller Smith 827-66-28 Silverline High Pressure Analytical Brass Single Stage Regulator is an elite component designed for the rigorous demands of specialty gas delivery. Part of the renowned 820 Silverline series, this regulator is engineered to manage inlet and delivery pressures up to 6000 PSIG, making it a critical tool for high-pressure testing, charging, and calibration environments. Unlike standard regulators that rely on rubber or metal diaphragms, the 827-66-28 utilizes a robust piston sensor design. This structural choice provides superior reliability and durability when handling extreme pressures, ensuring consistent performance without the risk of diaphragm rupture or fatigue associated with high-pressure cycling.

Material integrity is a cornerstone of the Silverline series. The entire body, bonnet, and gauge casings are constructed from brass and finished with a high-quality nickel plating. This plating serves a dual purpose: it significantly enhances corrosion resistance, extending the service life of the unit in industrial environments, and it maintains a high level of cleanliness required for analytical applications. The regulator is cleaned for oxygen service standards, ensuring it is free from oils and contaminants, although it is configured with a CGA 680 connection specifically for inert gases such as Argon, Nitrogen, and Helium.

Operational precision is achieved through a low-torque control adjusting screw. This self-relieving mechanism allows operators to easily reduce pressure settings even in closed or dead-end systems, a feature that greatly improves usability and safety during complex testing procedures. The bonnet is equipped with a 1/16-inch FNPT tapped vent hole, allowing for the installation of a capture line to safely vent gases away from the immediate work area—a critical safety feature for confined spaces or laboratory settings. With large 2-1/2 inch single scale gauges, operators can monitor cylinder and delivery pressures accurately from a distance, ensuring process control is maintained at all times.