Package Price:
$1,624.98/1 per eaUsually ships within 3-5 business days
The Miller Smith 321-70-25-00-00 is a premium two-stage regulator from the 320 Silverline Series, engineered specifically for the precise control of corrosive and non-corrosive specialty gases. This unit is constructed from 316 stainless steel bar stock, ensuring high corrosion resistance and structural integrity under high-pressure conditions. The regulator features a CGA 660 inlet connection and is calibrated for a delivery pressure range of 0-50 PSIG, making it suitable for analytical and process applications requiring low-pressure stability.
At the core of this regulator is a convoluted stainless steel diaphragm that provides exceptional sensitivity and response to pressure changes. The design utilizes a metal-to-metal diaphragm seal, which is critical for maintaining maximum leak integrity—essential when handling hazardous or high-purity gases. The seat assembly includes a 316 stainless steel filter and PCTFE seating material, designed to protect the regulator from particulate contamination while ensuring a positive shut-off. The two-stage configuration effectively compensates for the decay in cylinder pressure, providing a constant delivery pressure without the need for frequent manual adjustments.
Safety and operational flexibility are key components of the 321-70-25-00-00 design. The bonnet features captured vent ports (1/16" FNPT) for both stages, allowing for the safe piping and venting of hazardous gases in the unlikely event of a diaphragm failure. Furthermore, the regulator is designed to withstand internal vacuums, facilitating effective purging operations during cylinder change-outs. Large 2-1/2 inch single scale gauges provide clear readability of both inlet and delivery pressures.
| Additional Information |
|---|
| Brand:Smith Equipment |
| Product Type:Gas Regulator |
| Gas Service:Corrosive, Specialty Gas, High Purity |
| Material:316 Stainless Steel |
| Stages:Two Stage |
| Inlet Connection:CGA 660 |
| Outlet Connection:1/4" FNPT |
| Delivery Pressure Range:0-50 PSIG |
| Series:320 Silverline |
| Max Inlet Pressure:3500 PSIG |
| Gauge Size:2-1/2 Inch |
| Diaphragm Type:Convoluted Stainless Steel |
| Seat Material:316 Stainless Steel Filtered, PCTFE |
| Vent Port:1/16" FNPT Captured |
| Packaging Description:1 per ea |
