30-20-540 - Smith Equipment 30 Series Medium Duty Oxygen Regulator 0-20 PSIG CGA 540

Precision Control for Brazing and Welding

When your work demands a soft, stable flame for intricate brazing or light-gauge welding, the Smith 30-20-540 Oxygen Regulator is the tool you can trust. Unlike standard cutting regulators that struggle to hold low pressures steady, this 30 Series model is purpose-built to deliver a consistent 0-20 PSIG. This fine-tuned control allows you to dial in the exact oxygen flow needed for a perfect neutral flame, preventing the oxidation or soot buildup that can ruin a critical joint. Whether you are working on HVAC copper lines, jewelry, or aircraft tubing, this regulator gives you the finesse required for professional results.

Built for the Job Site

We know that welding equipment takes a beating. That’s why the Smith 30-20-540 is constructed with a forged brass body and a nickel-plated bonnet that resists corrosion and scratches. The gauges aren't just accurate; they are tough. The 2-inch dials are housed in polished brass and covered with shatter-resistant polycarbonate lenses, so an accidental knock or a flying spark won't put you out of commission. The large, easy-to-read numbers mean you can check your cylinder and line pressure at a glance, even in low-light shop corners.

Reliability You Can Count On

Nothing kills a regulator faster than dirt in the seat. Smith’s Sure Seat™ technology acts as a first line of defense, filtering out dust and grit from your oxygen cylinder before it can damage the internal components. This means fewer leaks, less creep, and a regulator that works like new for years. Combined with a neoprene composite diaphragm that reacts instantly to changes in flow, you get a smooth, non-fluctuating delivery pressure that lets you focus on the puddle, not the equipment. Made in the USA and backed by a 3-year warranty, this is a serious upgrade for any welder's oxy-fuel kit.

Key Applications

This regulator is the ideal choice for welders involved in:

• HVAC and Refrigeration: Precise brazing of copper tubing.
• Automotive Restoration: Light-duty welding on body panels.
• Jewelry and Art: Detailed metalworking requiring micro-flames.
• General Fabrication: Oxy-fuel heating and bending.