Mig And Tig Welding Basics Pressure Gauges
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Gas pressure is regulated by this gauge mechanism. The gauge on the left displays the amount of pressure the gas is exerting on the line going to the wire gun. On average, this setting should be somewhere within a 27-to-28 cfh (cubic feet per hour) range. The gauge on the right displays the volume of gas available from the cylinder. It looks like it's about time to get a full one, because this one is almost empty. The gas used in this MIG welder is a mixture of 75 percent carbon and 25 percent argon. View Related Article
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