610-00030000 - Miller Smith 610 Series High Purity Nitrous Oxide Regulator, 0-25 PSI, CGA 326

Technical Overview of the Miller Smith 610 Series Silverline Regulator

The Miller Smith 610-00-03-00-00 is a premium single-stage high purity regulator designed specifically for non-corrosive specialty gas applications, particularly those utilizing Nitrous Oxide (CGA 326). Engineered as part of the Silverline series, this regulator prioritizes gas stream integrity and precise pressure control. The unit features a body machined from brass bar stock which is subsequently nickel-plated, offering a robust housing that resists environmental corrosion while maintaining a clean aesthetic suitable for laboratory environments.

Central to its performance is the stainless steel diaphragm. Unlike elastomeric diaphragms that can outgas or permit diffusion, the stainless steel construction ensures a non-contaminating gas path. This is reinforced by a metal-to-metal seal between the body and the diaphragm, eliminating the need for gaskets that could degrade or introduce impurities over time. The regulator is equipped with a filtered seat mechanism and a 316 stainless steel filter at the inlet, which serves to trap particulates and protect the internal seating surfaces from damage, thereby extending the service life of the component.

The 610 Series is capable of handling inlet pressures up to 3500 PSI and provides a delivery pressure range from 30 inches Hg vacuum up to approximately 25-30 PSI. This versatility allows it to be used in systems requiring vacuum purging or low-pressure delivery. Safety features include a threaded bonnet with a capturable vent (1/16" FNPT), allowing for the safe piping of vented gases in the event of a diaphragm failure. The regulator also includes a large 2-1/2 inch single scale gauge for clear readability of delivery pressure. The outlet connection is typically configured for 1/4" FNPT, allowing for seamless integration into standard high-purity piping systems.

This regulator is an essential component for analytical instrumentation, chromatography, and other industrial processes where maintaining the purity of the gas stream is critical. Its design minimizes dead volume and ensures a rapid purge, making it highly efficient for switching gases or maintaining strict atmospheric control within a system.