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0311-0555 - Victor 12-A-MFN Rosebud Heating Assembly for Propane/Natural Gas

Packaging: pack of 1
$150.51/EA $90.18/pack of 1 only $90.18/EASave 40%

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OVERVIEW

Massive Heat with the Victor 12-A-MFN Rosebud

When you need to bring the heat, the Victor 12-A-MFN is the heavy hitter you reach for. Often referred to as a "rosebud," this multi-flame heating assembly is built to dump serious BTUs into your workpiece using economical Propane or Natural Gas. If you are bending heavy I-beams, preheating thick plate for a critical weld, or trying to free a seized pin on heavy equipment, this size 12 tip provides the soaking heat you need to get the job done.

Unlike acetylene tips, this MFN nozzle is designed specifically for alternative fuels. Propane and natural gas burn differently, and this tip features the correct recess and port geometry to keep your flame stable even when you crank up the pressure. It comes ready to rock as a full assembly—tip and elbow included—so you can screw it directly onto your Victor heavy-duty torch handle (like the 315FC) and get to work. No need to hunt for separate mixers or tubes.

Why choose the 12-A-MFN?

  • Cost Efficiency: Burn cheaper propane or natural gas for those long preheat cycles.
  • Safety: No risk of drawing acetone like you have with large acetylene tips; run it long and hot.
  • Power: Size 12 is a beast, designed for the biggest jobs in the shop.

Upgrade your heating game with genuine Victor reliability. Whether you are in a structural steel yard, a shipyard, or a heavy equipment repair shop, this heating assembly is the standard for high-output thermal applications.

Additional Information
Brand:Victor
Gas Type:Natural Gas, Propane
Tip Size:12
Product Type:Heating Assembly
Series:Type MFN
Assembly Components:Tip, Elbow
Torch Compatibility:Victor Heavy Duty Handles (300 Series)
Application:Heavy Heating, Preheating, Straightening
Packaging Description:pack of 1

INCLUDED

  • 1x 12-A-MFN Multi-Flame Heating Tip
  • 1x Heavy-Duty Elbow Assembly

APPLICATIONS

  • Preheating heavy plate before welding
  • Straightening bent structural steel
  • Bending pipe and flat bar
  • Removing seized bearings and pins
  • Flame shrinking
  • Large casting repair preparation

FAQ

This tip is designed specifically for Natural Gas and Propane. It should not be used with Acetylene.

No, for Acetylene you must use the MFA series tips. Using MFN tips with Acetylene can be dangerous and cause flashback or overheating.

It fits Victor heavy-duty torch handles, such as the 315FC and other 300-series handles.

Size 12 refers to the flow capacity and heat output of the tip. A size 12 is a very large tip capable of high BTU output for heavy materials.

Yes, this is a complete assembly that includes the multi-flame tip and the elbow (which acts as the mixing chamber/tube).

Propane is generally cheaper and has no withdrawal rate limits, making it safer and more economical for large, long-duration heating jobs.

The Victor part number is 0311-0555.

Yes, 'Rosebud' is the common industry slang for multi-flame heating tips like this one.