31-50-580-6 - Smith 30 Series Argon Flow Gauge Regulator with 6ft Hose, CGA 580

Precision Gas Control for Industrial Welding

The Smith 30 Series Argon Flow Gauge Regulator (31-50-580-6) is a premium medium-duty gas control solution designed for professional MIG and TIG welding applications. Manufactured by Smith Equipment (a division of Miller Electric), this single-stage regulator combines a compact form factor with industrial-grade durability. It is specifically calibrated for Argon, CO2, and mixed shielding gases, providing a consistent delivery range of 10 to 50 SCFH (Standard Cubic Feet per Hour). This precise control is essential for maintaining optimal weld quality and preventing porosity in gas-shielded welding processes.

At the core of this regulator is Smith's exclusive Sure Seat™ filtered high-pressure seat assembly. This proprietary technology incorporates a protective inlet filter that prevents microscopic particles and contamination from entering the seating area. Since debris is a leading cause of regulator failure and creeping pressure, the Sure Seat™ design significantly reduces maintenance costs and downtime. The body is machined from forged brass, offering superior strength compared to die-cast alternatives, while the nickel-plated bonnet helps reflect residual heat and resists corrosion in tough working environments.

The regulator features a highly durable neoprene composite diaphragm that provides greater sensitivity and longer service life than standard stainless steel diaphragms in this class. It is equipped with 2-inch diameter gauges protected by shatter-resistant polycarbonate lenses, ensuring readability even after accidental impacts. Safety is paramount, which is why the unit includes a self-reseating pressure relief valve. In the event of a high-pressure surge, the valve vents excessive pressure and automatically resets, protecting the internal components from damage. The safety body is also threaded, allowing for the attachment of a tube fitting to vent gases away from the operator if necessary.

This package comes complete with a 6-foot gas hose, making it ready for immediate connection to your welding machine. The inlet connection is a standard CGA 580, compatible with pure Argon, Argon/CO2 mixes, and Nitrogen cylinders. Whether used for fabrication, automotive repair, or maintenance, the Smith 30 Series regulator delivers the reliability and performance professionals demand.