CO2/Argon Two-Gauge Single-Stage Regulator with Flowmeter - W21.8 Inlet, G1/4 Outlet, 24 l/min

In a busy fabrication workshop, a welder sets up a MIG/MAG station for a day of production. The CO2/AR-2 reducer is mounted on the gas cylinder, its two gauges clearly showing cylinder pressure and working pressure. With a simple turn of the adjustment knob, the flow rate is set to 24 l/min, ensuring a stable shielding gas stream for clean, porosity-free welds. This regulator is built for professionals who demand reliability and precision in every bead.

Key specifications

• Compatible gases: CO2 and Argon (Ar)
• Two gauges: cylinder pressure and working pressure
• Single-stage regulator design
• Inlet connection: W21.8 x 1/14" external thread
• Outlet connection: G 1/4" internal thread
• Hose nozzle diameter: 6.3 mm
• Maximum inlet pressure: 200 bar
• Maximum outlet pressure: 10 bar
• Nominal flow rate: 24 l/min
• Body material: brass
• Gauge material: metal casing with plastic lens
• Integrated pressure relief valve for safety
• Knob-controlled pressure adjustment
• Complies with EN ISO 2503

Why choose it

This regulator delivers consistent outlet pressure and flow, even as cylinder pressure drops, thanks to its robust brass construction and precise single-stage mechanism. The dual gauges allow real-time monitoring of gas supply and working pressure, reducing downtime and guesswork. The integrated relief valve adds an extra layer of safety, protecting both the operator and the equipment from over-pressurization.

Ideal use cases

• MIG/MAG welding with CO2 or Argon mixtures
• TIG welding requiring stable argon shielding gas
• Professional fabrication shops and industrial settings
• Portable welding carts and field repair operations

Good to know

The regulator is designed for use with standard gas cylinders equipped with a W21.8 x 1/14" outlet. The G 1/4" outlet thread accepts common welding hoses with a 6.3 mm nozzle. Always ensure the cylinder valve is opened slowly to avoid pressure surges. Regular inspection of gauges and connections is recommended to maintain optimal performance and safety.