40-275-540 - Smith Equipment 40 Series Heavy Duty Oxygen Regulator, 0-275 PSIG

Reliable Oxygen Control for Heavy Duty Jobs

When you are out in the field or working through a heavy fabrication schedule in the shop, you need a regulator that doesn't just work—it needs to endure. The Smith 40-275-540 Heavy Duty Oxygen Regulator is built exactly for that purpose. Whether you are performing heavy oxy-fuel cutting, heating thick plate, or running high-flow industrial applications, this regulator delivers the consistent pressure you need, up to 275 PSIG. It eliminates the frustration of fluctuating flows, letting you focus entirely on your puddle or cut quality.

One of the biggest headaches with standard regulators is durability. Knobs break, gauges crack, and seats fail. Smith has addressed these issues head-on. The 40-275-540 features a solid brass body and a nickel-plated bonnet that resists corrosion and takes a beating. The gauges are housed in brass cases and covered with polycarbonate lenses that won't shatter if a tool accidentally knocks against them. Plus, the adjusting screw is a heavy-duty T-bar style. This means you can easily grab it and dial in your pressure, even while wearing thick welding gloves, without struggling with a tiny plastic knob.

Performance-wise, this regulator is a beast. It uses a stainless steel diaphragm instead of a rubber one. Why does that matter to you? It means this regulator handles cold temperatures and liquid gas setups without freezing up or cracking. It also provides extremely accurate pressure control. To keep you safe, it includes an external relief valve that vents pressure if a surge occurs, protecting the regulator from blowing out. With the Smith 40 Series, you are investing in a tool that is backed by a 3-year warranty and designed to stay in your rig for the long haul.

Key Benefits for the Welder:

• Glove-Friendly Adjustment: The T-bar handle makes changing pressure easy, even with full PPE on.
• Built Tough: Brass construction and shatter-resistant gauges withstand drops and shop abuse.
• Versatile Performance: Handles high delivery pressures (up to 275 PSIG) for thick cutting and heating applications.
• Liquid Gas Ready: Stainless steel diaphragm allows use with liquid oxygen cylinders.