623-00000000 - Miller Smith 620 Series Silverline High Purity Two-Stage Regulator, 250 PSI, 1/4" FNPT

Industrial Grade Reliability and Precision

The Miller Smith 623-00-00-00-00 Silverline Regulator represents the intersection of industrial durability and laboratory-grade precision. Built for professionals who require exacting control over gas delivery systems, this two-stage regulator is capable of handling inlet pressures up to 3500 PSI while delivering a stable, adjustable output of 0-250 PSI. The two-stage architecture is particularly beneficial in long-duration operations, as it compensates for the natural drop in cylinder pressure, providing a consistent flow without the need for constant manual readjustment.

Construction quality is a standout feature of the 620 Silverline series. The body is crafted from solid brass bar stock and nickel-plated to withstand harsh industrial environments while maintaining a professional appearance. Internally, the regulator utilizes a stainless steel diaphragm that forms a metal-to-metal seal with the body. This design choice not only enhances the leak integrity of the unit—capable of withstanding internal vacuums during purging—but also significantly extends the service life compared to rubber-diaphragm alternatives. The 2-1/2" single scale gauge provides clear, easy-to-read pressure monitoring.

Versatility is key for MRO and custom fabrication setups. The 623-00-00-00-00 is equipped with 1/4" FNPT connections on both the inlet and outlet, allowing users to adapt the regulator to a wide range of fittings, including compression tube fittings or standard NPT piping. Additionally, the unit features threaded front and rear bonnets, making it ready for panel mounting in gas cabinets or control boards. With its combination of robust materials, precise engineering, and adaptable configuration, this Miller Smith regulator is an excellent choice for facility maintenance, custom manifold systems, and specialized manufacturing processes.