311-00210000 - Miller Smith 310 Series Silverline SS Regulator 0-50 PSIG CGA 326

High Purity Precision for Corrosive Environments

The Miller Smith 311-00-21-00-00 Silverline High Purity Regulator is an advanced single-stage pressure control device engineered specifically for the rigorous demands of specialty gas delivery. Part of the renowned 310 Silverline Series, this regulator is constructed almost entirely from 316 stainless steel bar stock, ensuring maximum resistance to corrosion and contamination. This material selection is critical when handling reactive, toxic, or corrosive gases where standard brass regulators would fail or introduce impurities into the gas stream. The unit features a CGA 326 inlet connection, typically utilized for Nitrous Oxide and specific high-purity gas mixtures, and delivers a precise outlet pressure range of 0-50 PSIG.

Technically, the regulator distinguishes itself with a convoluted stainless steel diaphragm. Unlike rubber or elastomeric diaphragms that can off-gas or degrade over time, the stainless steel diaphragm provides a metal-to-metal seal, guaranteeing superior leak integrity and maintaining the purity of the gas system. This design allows the regulator to withstand internal vacuums and ensures stable regulation of delivery pressure even as cylinder pressure decays. The seat assembly is also filtered with 316 stainless steel, further protecting the internal components from particulate damage and extending the service life of the unit.

Safety and integration are paramount in the design of the 311-00-21-00-00. The bonnet includes a captured vent port (1/16" FNPT), which allows operators to pipe hazardous gases away to a safe ventilation system in the unlikely event of a diaphragm failure. For system integrators, the regulator offers versatile mounting options, including a threaded bonnet for front panel mounting and a tapped body for rear panel mounting. With a maximum inlet pressure rating of 3500 PSIG and a 1/4" FNPT outlet, this regulator is a robust solution for analytical laboratories, chemical processing, and industrial applications requiring uncompromising purity and safety.