0781-0355 - Victor SR310 High Capacity CO2 Regulator, CGA-320, 10-200 PSIG

Heavy-Duty CO2 Regulation for Core Wire Welding

Welders know that Carbon Dioxide is one of the most cost-effective shielding gases, but it comes with a major drawback: freezing. When CO2 expands from high cylinder pressure to working pressure, it absorbs a tremendous amount of heat, causing standard regulators to frost over and eventually block gas flow. This leads to porosity in welds and costly downtime. The Victor SR310 (0781-0355) is the welder's solution to this problem. Engineered specifically for high-flow applications like flux-cored arc welding (FCAW) and heavy-duty MIG, this regulator features a unique finned aluminum body design. The fins act as a heat sink, drawing warmth from the surrounding air to keep the gas flowing freely, often eliminating the need for cumbersome electric heaters.

The SR310 is built to withstand the rigors of the welding shop. It features a machined aluminum housing cap and body that resists corrosion and physical impact. The 2-inch brass gauges are easy to read, allowing operators to monitor cylinder pressure and delivery pressure at a glance. With a delivery range of 10 - 200 PSIG, this regulator provides the power needed to push gas through long cable runs or to supply high-amperage welding operations where gas coverage is critical. The 5/8"-18 RH(F) outlet connection is compatible with standard inert gas hoses, making integration into your existing welding cart or manifold system seamless.

Reliability is key in production environments. The SR310 utilizes a stem-type seat mechanism and a fabric-reinforced neoprene diaphragm to deliver smooth, surge-free gas flow. This consistency is vital for maintaining a stable arc and preventing weld defects. Whether you are running dual-shield wire or straight CO2 MIG, the Victor SR310 ensures that your shielding gas is delivered at the right pressure and flow rate, shift after shift. It is the ideal choice for fabrication shops, shipyards, and manufacturing plants that rely on CO2 for their joining processes.