31-50-580 - Smith 30 Series Argon Flow Gauge Regulator CGA-580

Reliable Gas Control with Smith 30 Series Technology

The Smith 30 Series Flow Gauge Regulator (Model 31-50-580) represents a benchmark in industrial gas regulation, combining the legacy of Smith Equipment's engineering with the modern manufacturing standards of Miller Electric. Designed specifically for welding applications requiring Argon or Argon/CO2 mixtures, this regulator ensures that your shielding gas flow remains consistent and accurate, which is critical for maintaining high-quality weld integrity. The unit is built around a forged brass body, offering a compact yet robust solution for medium-duty applications where space and durability are paramount.

Sure-Seat™ Protection System

One of the standout features of the 31-50-580 is the inclusion of Smith's exclusive Sure-Seat™ filtered high-pressure seat assembly. In many industrial environments, microscopic debris and contaminants can enter the gas stream, leading to premature seat failure and regulator creep. The Sure-Seat™ technology utilizes a copper-nickel filter that encases the high-pressure seat, effectively blocking these contaminants. This innovation significantly extends the service life of the regulator, reducing downtime and repair costs for workshops and production facilities.

Precision and Safety

Accuracy is key when managing expensive shielding gases. This regulator features a highly durable neoprene composite diaphragm that allows for precise adjustment of outlet pressure. The flow gauge is calibrated to deliver between 10 and 50 SCFH, covering the vast majority of MIG and TIG welding requirements. Safety is also a primary design consideration; the unit includes a self-reseating pressure relief valve. In the event of a high-pressure surge, the valve vents the excess pressure and automatically resets, protecting both the equipment and the operator. The 2-inch gauges are protected by shatter-resistant polycarbonate lenses, ensuring they remain readable even after accidental impacts common in busy workshops.

Technical Specifications

The regulator connects via a standard CGA 580 inlet, making it compatible with standard Argon and Argon-mix cylinders. The inlet gauge reads up to 4000 PSI, providing a clear indication of cylinder contents, while the delivery gauge clearly marks flow rates in Standard Cubic Feet per Hour (SCFH). Backed by a 3-year limited warranty and manufactured in the USA, the Smith 31-50-580 is a dependable choice for professionals seeking longevity and performance in their gas regulation equipment.