312-70310000 - Miller Smith 310 Silverline Series High Purity SS Regulator, CGA 705, 0-100 PSIG

Miller Smith 310 Silverline Series High Purity Regulator

The Miller Smith 312-70-31-00-00 is a premium single-stage regulator from the 310 Silverline Series, engineered specifically for high-purity, corrosive, and toxic gas applications. This unit is meticulously constructed from 316 stainless steel bar stock, ensuring that all wetted parts—including the body, diaphragm, and filtered seat—offer maximum resistance to corrosion and chemical attack. The regulator is designed to maintain the integrity of high-purity gas streams, preventing contamination that could compromise sensitive analytical processes or laboratory results. With a CGA 705 inlet connection, this model is tailored for specific corrosive gas services requiring stainless steel compatibility.

At the core of this regulator's performance is its convoluted stainless steel diaphragm. Unlike standard flat diaphragms, the convoluted design provides superior sensitivity and response to pressure changes, allowing for precise control of delivery pressure within the 0-100 PSIG range. The diaphragm employs a metal-to-metal seal with the body, a critical feature that ensures maximum leak integrity. This design eliminates the need for elastomeric seals in the diaphragm assembly, which can be potential sources of outgassing or permeation in ultra-high purity systems. The regulator is rated for a maximum inlet pressure of 3500 PSIG, making it suitable for high-pressure cylinders.

Safety is paramount when handling hazardous gases. The Miller Smith 312-70-31-00-00 includes a captured vent port (1/16" FNPT) located in the bonnet. In the unlikely event of a diaphragm failure, this port allows hazardous gases to be piped away safely to a fume hood or scrubber system, protecting personnel and the immediate environment. Additionally, the regulator features a 316 stainless steel filtered seat which not only aids in maintaining gas stream purity but also extends the service life of the regulator by trapping particulates that could damage the seating surface. For versatile installation, the bonnet is threaded for front panel mounting, and the body is tapped for rear panel mounting.

This regulator is an essential component for laboratories, research facilities, and industrial processes utilizing specialty gases. Its robust construction and precise engineering meet the rigorous demands of chromatography, EPA protocol gas standards, and semiconductor manufacturing support.