321-81240000 - Miller Smith 320 Silverline High Purity 2-Stage SS Regulator, 50 PSI, CGA 580

Precision Engineering for High Purity Applications

The Miller Smith 321-81-24-00-00 is a premier component of the 320 Silverline Series, engineered specifically for the rigorous demands of high purity and specialty gas delivery. This two-stage regulator is meticulously crafted from 316 stainless steel bar stock, ensuring a robust defense against corrosion and contamination. The unit is designed to handle both corrosive and non-corrosive gases, providing a versatile solution for complex industrial and laboratory environments where gas integrity is paramount. With a delivery pressure range of 0-50 PSI, it offers fine-tuned control for sensitive downstream equipment.

At the heart of this regulator's performance is its convoluted stainless steel diaphragm. Unlike standard flat diaphragms, the convoluted design allows for greater sensitivity and response to pressure changes, minimizing hysteresis and ensuring a stable flow rate. The metal-to-metal diaphragm seal is a critical feature for leak integrity, effectively eliminating the risk of gas escape or atmospheric contamination. This seal integrity is further bolstered by the 316 stainless steel filtered seat, which not only extends the service life of the regulator by trapping particulates but also maintains the high purity of the gas stream.

Safety and operational flexibility are built into the design. The regulator features captured vent ports (1/16" FNPT) in the bonnet, allowing for the safe piping of hazardous or toxic fumes away from the work area in the unlikely event of a diaphragm failure. Furthermore, the device is engineered to withstand internal vacuums, making it compatible with purging operations essential for maintaining system purity during cylinder changes. The dual-stage mechanism ensures that the delivery pressure remains constant even as the cylinder pressure decays, providing reliable performance from the start of the cylinder to the end.

The 321-81-24-00-00 is equipped with a CGA 580 inlet connection, suitable for inert gases such as Argon, Helium, and Nitrogen. The outlet is fitted with a 1/8" tube fitting, facilitating easy integration into precision tubing systems. Large 2-1/2 inch gauges provide clear, single-scale readings, allowing operators to monitor cylinder and delivery pressure with ease. Whether used in semiconductor manufacturing, chemical analysis, or emissions monitoring, this Miller Smith regulator stands as a benchmark for reliability and precision.