310-83230000 - Miller Smith 310 Series Silverline High Purity SS Regulator, CGA 350, 0-25 PSIG

Technical Overview of the Miller Smith 310 Series Silverline Regulator

The Miller Smith 310-83-23-00-00 is a premium component within the Silverline High Purity Series, engineered specifically for the rigorous demands of analytical laboratories and specialty gas applications. This single-stage regulator is meticulously crafted to manage corrosive, non-corrosive, and toxic gases without compromising system purity or safety. The core of its construction features a 316 stainless steel bar stock body, ensuring exceptional resistance to chemical attack and environmental corrosion. This material choice is critical for maintaining the integrity of high-purity gas streams, particularly when handling reactive media associated with CGA 350 connections, such as hydrogen or hydrocarbons.

Technically, the 310 Series distinguishes itself with a convoluted stainless steel diaphragm. Unlike standard flat diaphragms, this convoluted design provides a greater effective area and flexibility, resulting in highly stable delivery pressure and precise control, even as cylinder pressure decays. The diaphragm utilizes a metal-to-metal seal against the body, eliminating the need for elastomeric seals that could outgas or degrade over time, thereby ensuring maximum leak integrity (typically 1 x 10^-9 cc/sec Helium). The seat assembly is constructed from 316 PCTFE (Polychlorotrifluoroethylene), a material selected for its dimensional stability and resistance to cold flow, which contributes to an extended service life and reliable shut-off performance.

Safety and integration are paramount in the design of the 310-83-23-00-00. The regulator includes a captured vent port (1/16” FNPT) located in the bonnet. This feature allows users to pipe vented gases away to a safe discharge area, a mandatory requirement when regulating toxic or flammable gases. Furthermore, the unit is designed for versatility in installation, featuring a threaded bonnet for front panel mounting and a tapped body for rear panel mounting. With a delivery range of up to 25 PSIG and a maximum inlet pressure of 3500 PSIG, this regulator provides the robust performance required for critical instrumentation and process control.