320-00000102 - Miller Smith 320 Series High Purity Stainless Steel Two-Stage Regulator, 0-25 PSI, 1/4" FNPT

High Purity Precision for Corrosive Environments

The Miller Smith 320 Series High Purity Two-Stage Regulator is engineered for the most demanding analytical and process applications. Designed specifically for corrosive and non-corrosive gases requiring absolute stability, this regulator features a body and wetted parts machined from 316 Stainless Steel. The use of PCTFE seats and a convoluted stainless steel diaphragm ensures that the gas stream remains pure and that the device resists chemical attack over a long service life.

Technical integrity is paramount in the 320 Series. The regulator utilizes a metal-to-metal diaphragm seal, eliminating the need for elastomeric seals that can degrade or outgas, thereby providing maximum leak integrity (1 x 10^-9 cc/sec Helium). The two-stage architecture provides constant delivery pressure control, negating the "decaying inlet characteristic" common in single-stage regulators as the cylinder pressure drops. This model is configured with 1/4" FNPT inlet and outlet connections, allowing for versatile integration into gas manifolds, panels, or custom piping systems.

Safety and operational flexibility are built into the design. Captured vent ports (1/16" FNPT) are located on the bonnets of both stages, allowing users to pipe hazardous or toxic gases away to a safe scrubbing or ventilation system in the rare event of a diaphragm failure. Furthermore, the regulator is designed to withstand internal vacuums, making it suitable for rigorous purging cycles essential in high-purity gas handling. The 2-1/2 inch gauges provide clear, single-scale readings for precise monitoring.