Victor Size 10 MFA Acetylene Heating Nozzle

Get the Heat You Need with Victor MFA

When you are staring down a thick piece of steel that needs to be bent, straightened, or preheated, you don't have time to wait around for a weak flame. That is where the Victor 0311-0648 10-A-MFA Heating Tip comes in. Known in the field as a "rosebud," this multi-flame acetylene tip is a workhorse for welders and fabricators who need serious heat output. Designed to fit your heavy-duty Victor 300 Series torch handle, this tip turns your cutting setup into a powerful heating lance, giving you the versatility to tackle a wider range of jobs without changing your rig entirely.

The Size 10 MFA is not for delicate work; it is built for the heavy stuff. Whether you are preheating a casting before laying down a bead, freeing a seized nut on heavy machinery, or heat-shrinking a fitting, the concentrated acetylene flame gets the metal hot fast. The multi-flame face distributes the heat evenly over a targeted area, preventing hot spots while soaking the heat deep into the material. This is crucial for preventing hydrogen cracking in high-carbon steels or simply making a 1-inch plate pliable enough to bend. The copper construction stands up to the abuse of the shop floor and resists overheating, provided you keep your gas pressures dialed in correctly.

Using the 10-A-MFA is about power and control. Because it runs on acetylene, you get that distinct, high-intensity neutral flame that is easy to adjust and monitor. Unlike propane tips that can sometimes feel like they are washing the heat over the surface, this acetylene tip drives the temperature up quickly, saving you gas and time in the long run. Just remember, this is a big tip that drinks a lot of gas—make sure you have enough acetylene capacity (or a manifold) to keep it fed safely. Don't starve the tip, or you risk popping and overheating.

For the professional welder, having a reliable heating tip in your kit is as important as having good ground clamps. The Victor 10-A-MFA is the industry standard for a reason: it works. It fits the handles you likely already own (like the HD 310C), and it delivers consistent performance day in and day out. If you are doing structural repair, heavy equipment maintenance, or custom fabrication, this is the tool that helps you manipulate metal exactly how you need to.