40-50-510 - Smith Series 40 Heavy-Duty Propane Regulator, CGA 510, 0-50 PSIG

High-Flow Precision for Welding and Cutting

The Smith 40-50-510 is a premium heavy-duty single-stage regulator designed to meet the rigorous demands of professional welding, cutting, and heating applications. Optimized for high-flow performance, this Series 40 regulator is capable of producing flows over 16,000 SCFH, which is up to 25% higher than comparable heavy-duty competitors. This exceptional flow capacity ensures stable flame characteristics and consistent pressure delivery, essential for maintaining cut quality and weld integrity during intensive operations. The unit provides extremely accurate outlet pressure, maintaining within ±2% of the actual gauge reading, ensuring that your torch receives the exact pressure required for the job.

Technical superiority is evident in the regulator's construction. The stainless steel diaphragm is a critical feature for welders working in diverse environments; it eliminates the need for diaphragm replacement in the event of over-pressurization and resists freeze-up when used with liquid gases. This makes the 40-50-510 an excellent choice not only for standard oxy-fuel processes but also for cryogenic applications. The regulator exhibits very low decay/rise characteristics—only 0.4 PSIG outlet rise per 100 PSIG tank pressure decay—helping to maintain consistent flows as your cylinder pressure drops, reducing the need for constant readjustment at the torch.

The 40-50-510 comes equipped with a standard CGA 510 inlet connection, making it compatible with standard Propane and Natural Gas cylinders. The color-coded labels provide immediate identification of gas service and performance capabilities, enhancing shop safety. With its rugged brass body, corrosion-resistant nickel-plated bonnet, and dual-filter system protecting the high-pressure seat, this regulator is built to last. Backed by a 3-year limited warranty, the Smith Series 40 is the definitive choice for fabricators, pipefitters, and metalworkers seeking a high-performance regulator that refuses to compromise on quality or safety.