Miller Smith® Series 40 Heavy-Duty Oxygen Regulator w/ Hard Hat, 175 PSI, CGA 540 #40-175-540S

Smith® Series 40 Oxygen Regulator for Heavy-Duty Use, CGA 540 #40-175-540S

The Smith® Series 40 Oxygen Heavy-Duty Regulator from Miller is engineered to provide precise oxy-fuel pressure control with a maximum delivery pressure of 175 psig and an inlet pressure of 3000 psig, making it suitable for high gas flow applications, including liquid service. This regulator is equipped with an HB190 Hard Hat gauge guard for enhanced protection against accidental damage, ensuring reliable performance in demanding environments. Backed by Miller 3-year warranty.

What's Included

• Smith® Series 40 Oxygen Regulator
• HB190 Hard Hat gauge guard
• CGA 540 connection

Highlights

• Max Pressure: Delivers up to 175 psig with a 3000 psig inlet rating.
• Durable Protection: Includes HB190 Hard Hat gauge guard for longevity.
• Corrosion Resistance: Stainless steel diaphragm prevents freeze-up.
• Smooth Adjustments: Resin bonnet insert ensures easy high-pressure control.
• Safety Valve: External relief valve guards against pressure surges.
• Rugged Build: Nickel-plated bonnet and forged brass body resist corrosion.
• Clear Gauges: 2.5-inch shatter-resistant polycarbonate lenses for readability.
• Debris Protection: Dual filters, including Sure Seat™, extend seat life.

Industries

• Metal fabrication
• Heavy-duty welding
• Manufacturing
• Automotive repair
• Maintenance and repair

Benefits of the Smith® Series 40 Oxygen Regulator

• Designed for high gas flow applications, including liquid service
• Durable stainless steel diaphragm ensures extended service life with liquid gases
• Color-coded labels provide clear identification for gas services and performance capabilities
• External relief valve releases excessive pressure automatically to protect the regulator
• Robust construction with nickel-plated bonnet and forged brass body prevents corrosion
• Shatter-resistant 2.5-inch gauges allow for easy monitoring of pressure levels
• Sure Seat™ dual filter system ensures reliable operation by minimizing debris buildup

Fast, Free Shipping & Easy Returns

Your in-stock items ship same or next day from our five distribution hubs in WI and IL via UPS Ground on orders $300+. Need special shipping? Just call 1-844-682-0205 for accommodations, including our use of your shipping accounts. Enjoy hassle-free 14-day returns on new, sealed products with a pre-approval. Count on exceptional service backed by industry-leading shipping and return policies. Experience the advantage on your next order!

Check out our selection of welding equipment and accessories from Miller and other brands.

• Spec Sheet - Series 40™ and Series 46™ Heavy-Duty Single-Stage Pressure Regulators

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