620-00100000 - Miller Smith 620 Series Silverline Two-Stage Regulator, CGA 590, 0-25 PSI

High Purity Precision Control

The Miller Smith 620-00-10-00-00 Silverline High Purity Brass Two Stage Regulator is engineered for applications demanding the utmost precision and gas purity. Designed specifically for non-corrosive specialty gases, this regulator features a two-stage construction that maintains a constant outlet pressure of 0-25 PSIG, regardless of fluctuations in the inlet pressure from the cylinder. This stability is critical for laboratory instrumentation, gas chromatography, and other sensitive analytical processes where pressure drift can compromise results.

Constructed from high-quality brass bar stock with a nickel-plated finish, the body offers excellent durability and resistance to environmental corrosion. The heart of the regulator is its stainless steel diaphragm, which provides superior sensitivity and accuracy compared to elastomeric diaphragms. The metal-to-metal seal between the body and the diaphragm eliminates the need for gaskets, significantly reducing the risk of gas contamination and ensuring a leak-tight seal. A 316 stainless steel filter is integrated into the inlet to trap particulates, protecting the seat and prolonging the service life of the unit.

Safety and versatility are key components of the 620 Series. The bonnet features a capturable 1/16" FNPT vent, allowing users to pipe hazardous or toxic gases away from the work area in the unlikely event of a diaphragm failure. The regulator is also capable of withstanding internal vacuums during purging operations, making it suitable for high-purity gas handling procedures. With a maximum inlet pressure of 3500 PSIG and a CGA 590 connection, this regulator is the professional choice for precise gas control.