310-00000000 - Miller Smith 310 Silverline Stainless Steel High Purity Regulator, 25 PSIG, 1/4" FNPT

Precision Control for High Purity Applications

The Miller Smith 310-00-00-00-00 Silverline High Purity Regulator is an elite-class instrument engineered for the rigorous demands of specialty gas delivery. Designed to maintain the integrity of high purity systems, this single-stage regulator is constructed almost entirely from 316 stainless steel. This material selection is critical for applications involving corrosive, toxic, or semi-corrosive gases where standard brass components would degrade or contaminate the flow. The body, diaphragm, and filtered seat are all manufactured to exacting standards to ensure compatibility with aggressive media while preventing particulate contamination of the gas stream.

At the heart of the 310 Series is a specially designed, convoluted stainless steel diaphragm. Unlike flat diaphragms, this convoluted design offers superior sensitivity and response to pressure changes, providing stable regulation of delivery pressure even as the cylinder pressure decays. The diaphragm utilizes a metal-to-metal seal with the body, a feature that significantly enhances leak integrity—a non-negotiable requirement when handling hazardous or expensive high-purity gases. The regulator is capable of withstanding an internal vacuum, making it suitable for purge cycles and vacuum applications down to 30 inches of mercury.

Safety and versatility are paramount in the 310 Silverline design. The bonnet features a captured vent port (1/16" FNPT), allowing operators to pipe vented gases away to a safe location in the event of a diaphragm failure. This is an essential safety feature for laboratories and industrial settings handling toxic substances. For installation flexibility, the regulator includes 1/4" FNPT inlet and outlet connections, allowing for custom fitting configurations or direct integration into manifold systems. The unit is also designed for panel mounting, with a threaded bonnet for front mounting and tapped body holes for rear mounting. With a maximum inlet pressure of 3500 PSIG and a delivery range optimized for 0-25 PSIG (gauge scale 0-30), this regulator provides the precision and durability required for analytical instrumentation, research, and process control.