312-66310000 - Miller Smith 310 Silverline Stainless Steel Regulator, 100 PSIG, CGA 705

High Purity Regulation for Corrosive Environments

The Miller Smith 312-66-31-00-00 Silverline High Purity Regulator is an advanced solution designed specifically for the rigorous demands of specialty gas delivery. Engineered to handle corrosive, non-corrosive, and toxic gases, this single-stage regulator is a critical component for laboratories, research facilities, and industrial applications where maintaining gas purity is paramount. The regulator features a robust construction utilizing 316 stainless steel for all wetted parts, ensuring that the gas stream remains uncontaminated by the regulator material itself. This resistance to corrosion extends the service life of the unit significantly, even when used with aggressive media typically associated with CGA 705 connections.

At the heart of the 310 Silverline series is a specially designed convoluted stainless steel diaphragm. Unlike elastomeric diaphragms that can degrade or off-gas, this stainless steel diaphragm provides a non-contaminating barrier that offers precise control over delivery pressure. The metal-to-metal diaphragm seal further enhances the unit's integrity, providing a leak-tight seal that is essential when handling hazardous or toxic substances. This design allows the regulator to maintain stable pressure regulation across its 0-100 PSIG delivery range, ensuring consistent flow rates for sensitive instrumentation and processes.

Safety is a primary focus in the design of the 312-66-31-00-00. The bonnet includes a captured vent port with a 1/16-inch FNPT connection, allowing users to pipe vented gases away to a safe disposal area in the unlikely event of a diaphragm failure. This feature is indispensable for personnel safety when working with toxic gases. Additionally, the regulator is capable of withstanding an internal vacuum, making it compatible with purge cycles required to clear lines of atmospheric contaminants before introducing high-purity gases. The unit is also equipped with a 316 stainless steel filtered seat, which protects the seating mechanism from particulate damage, ensuring reliable shut-off and regulation over time.

Installation flexibility is built into the Silverline series. The bonnet is threaded to accommodate front panel mounting, while the body is tapped for rear panel mounting, allowing for seamless integration into gas cabinets, control panels, or benchtop setups. Large, easy-to-read 2-1/2 inch gauges provide clear visual confirmation of cylinder and delivery pressures. With a maximum inlet pressure rating of 3500 PSIG, this regulator is ready to handle high-pressure cylinders with confidence and precision.