How to Set the Gas Flow on an MIG

MIG welding is a skill that most people can learn, and it just takes time and the proper equipment to do the job correctly. MIG welding uses a gas to shield the weld, and that gas needs to flow at a certain rate for it to do the job right. If it's not set correctly, then the resulting weld will either not be as strong, or it will be more difficult to control the welder. Setting the correct gas flow on your MIG welder involves a few different factors, but you can do this in just a few minutes.

Things You'll Need

• Tape measure

Instructions

1. Measure the inside diameter of the nozzle on the end of the torch of the welder using the tape measure.

2. Open up the handle on top of the MIG welding gas bottle using your hands. Locate the gas flow regulator with the gas flow gauge located on the top of the tank, which is labeled in CFH-cubic feet per hour.

3. Turn the knob on the gas flow regulator to adjust the gas flow to the following specifications: 22-27 CFH for a 1/2-inch nozzle size, 30-35 CFH for a 5/8-inch nozzle size and 35-40 CFH for a 3/4-inch nozzle size.

References

• YouTube: Set MIG Gas Flow