Technical data

Gas Mixers
Proportional Gas Mixers Typical Applications
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Eliminates stocking and handling premixed gases
Various welding jobs require different mixes for the best performance. On-site
mixing of gases with Smith’s proportional gas mixers eliminates inventorying and
handling of costly premixed gases. Individual gases can be mixed for specific
welding or other industrial requirements resulting in improved performance.
Controlling the mixture of gases will result in lower cost and better controlled welds.
Reduces Set-up Time
No need to change cylinders, regulators, flowmeters or hoses when changing from
one range of mixed gas to another. Just turn the dial for whatever mixture you
need. No critical adjustment of flowmeters or complex calculations needed to
achieve proper mixture rates.
Accurate — No Gas Separation!
Premixed gases may separate (stratify) into the individual gases within the cylinder.
Smith’s proportional gas mixer eliminates gas stratification to always gives you an
accurate mixture.
Easy Operation, Training & Supervision in Welding Applications
Whether you are using a single welder or a manifold system supplying many
welders, operation is simple and easy to use. Ideal for training all personnel
regarding shielded gas mixtures because they can see the effect of various gas
mixtures on weld appearance, quality and penetration. Supervisors can easily note
at a glance if the operator is using specified gas mixture.
Three Series of Mixers Available:
2-Gas Mixers in Standard and High Capacity Models and 3-Gas Standard Models
The standard 2-gas series provides flows up to 180 SCFH and is suitable for most applications. The high capacity two-gas series
provides flows up to 700 SCFH and is designed primarily for large manifold systems with station flowmeters in the welding
industry. It is ideal for other industrial applications requiring high flow rates. The standard three-gas series provides flows up to
180 SCFH.
• Weld and purge with a variety of gases
• Accurate TIG and MIG weld shielding
• Mixed gases for the foundry industry
• Accurate mixing of gases for the aerospace industry
• Laboratory applications
• Gas mixtures for plasma arc cutting machines
• Controlling the atmosphere in heat treat ovens
• Mixtures are maintained with any selection
• Mixture accuracy is unaffected when inlet pressure
remains within specified limits
• Reduced set-up time eliminates the need for
premixed gases
• Easy operation, training and supervision
• Requires no electricity
2 Gas
10-180 SCFH/5-85 LPM
2 Gas
20-700 SCFH/9-330 LPM
3 Gas
10-180 SCFH/5-85 LPM
Gas
Mixers/Blenders