Smith Series 40 Heavy-Duty Acetylene Regulator CGA 300 with Hard Hat

Built Tough for the Industrial Job Site

When you are out in the field or working in a busy fabrication shop, your equipment needs to be able to take a beating and keep performing. The Smith Series 40 Heavy-Duty Acetylene Regulator is built with exactly that reality in mind. Known for its rugged reliability, this regulator comes standard with Smith's legendary "Hard Hat" gauge guard (HB190). This heavy-duty steel housing protects the most vulnerable part of your regulator—the gauges—from the inevitable knocks, drops, and impacts that happen during daily operations. No more downtime replacing broken lenses or bent gauge stems; the Hard Hat keeps your gear safe so you can keep welding.

Under the hood, the Series 40 is designed to handle the toughest jobs. It features a stainless steel diaphragm, which is a significant upgrade over the rubber diaphragms found in standard regulators. This metal diaphragm doesn't just last longer; it resists corrosion and won't crack or freeze up, even in cold environments. Whether you are cutting thick steel, heating heavy plate, or running a manifold system, this regulator delivers the high gas flow you need—up to 16,000 SCFH—ensuring your torch never starves for fuel in the middle of a cut.

Ease of use is a key feature of the 40-15-300S. The large, 2.5-inch gauges are easy to read even from a distance, featuring shatter-resistant polycarbonate lenses for added safety. The adjusting screw uses a resin bonnet insert that ensures smooth, easy pressure adjustments, even when the system is under high pressure. You won't have to fight the knob to get the flame just right. Plus, the color-coded labels help you instantly identify gas service and performance capabilities, adding an extra layer of safety to your setup.

Backed by a 3-year warranty from Miller/Smith, this regulator is an investment in long-term reliability. The CGA 300 connection is designed for specific acetylene cylinders, ensuring a secure and proper fit. From the nickel-plated bonnet that fights off rust to the internal filter that blocks dirt and debris, every inch of this regulator is engineered to stay in service longer. Upgrade to the Smith Series 40 and experience the difference that professional-grade equipment makes in your productivity and safety.