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Petrogen Multi-Fuel Adapter for Heavy Fuels

The safest cutting torch in the field now gives operators even more flexibility with fuel selection. Petrogen’s cutting torch systems come standard ready to use liquid fuels such as gasoline of any grade, “white” gas, camping fuel, and stabilizer additive fuels. But now with the addition of Petrogen’s Multi-Fuel Adapter Kit operators can expand their fuel options to popular heavy fuels like diesel, kerosene, biodiesel, and even Military JP (8, 5, 24) fuels.

In conjunction with increased fuel availability, operators can continue to look forward to the standard performance, safety, or financial perks of the Petrogen system. For example, all the performance benefits of using lighter liquid fuels which lead to capabilities like making staked steel cuts, air gap cuts, and deep hole punches are all just as achievable with heavy fuels. The superior way in which fuel is distributed with the Petrogen system also stays the same, continuing to eliminate any possibility of fuel line flashback. And of course with greater fuel options, operators save money by being able to pick the best fuel for their operations.

The Multi-Fuel Adapter Kit provides operators with all they’ll need to utilize heavy fuels with the Petrogen system. The kit includes a simple adapter body, which fits all Petrogen torches, a Heavy Duty Igniter, three cutting tips, and a Pelican Case for storage. The Multi-Fuel Adapter body fits easily to the head of any Petrogen torch, making switching from heavy fuels back to light fuels a simple process.

Multi-Fuel Adapter Kit Contents:

  • Multi-Fuel Adapter (MFA) Body w/ Tip Nut
  • MFA Installation Wrench
  • (3) High Heat Cutting Tips
  • Heavy Fuel Igniter
  • Igniter flint cartridges
  • Pelican Case


1. Attach the Multi-Fuel Adapter body to the torch head. Use an Adjustable Wrench to snug the adapter to the Torch. (DO NOT OVERTIGHTEN)

Multi-Fuel Adapter instalation step one

2. Slide Tip Nut over chosen High Heat Tip (See Tip Selection Chart for tip size to material thickness reference.) and place into the adapter.

Multi-Fuel Adapter instalation step two

3. Slide the Multi-Fuel Adapter Installation Wrench over the adapter to stabilize the body, and use the Adjustable Wrench to snug the Tip Nut to the adapter. (DO NOT OVERTIGHTEN)

Multi-Fuel Adapter instalation step three

PLEASE NOTE: If using lighter fuels such as gasoline (Mogas), leave Multi-Fuel Adapter detached from the torch. Place tip directly in the head of the torch and secure with Tip Nut (DO NOT OVERTIGHTEN). High Heat Tips are best utilized in conjuntion with the Multi-Fuel Adapter, though, will work if standard Tips are not available. Also note that your light up procedure will differ. See Training page for reference.

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Ensure that the Heavy Fuel Ingiter is engaging the flint and creating adequate sparks before beginning to light torch. Doing so will prevent excess fuel from being lost.

Heavy Fuel Igniter
  • Hold the igniter 45 degrees to the surface.
  • Make sure the screw is upward.
  • Apply downward pressure to the flint.
  • Strike down.

  1. Open the Pre-Heat Oxygen Knob precisely ½ turn (use the '+,-' decals to execute a precise turn) Because of the higher pressures used with tips 6-8, use ¼ turn of pre-heat oxygen knob.

  2. Petrogen Multi-Fuel start up - Half Turn

  3. Purge the system by fully depressing the High Pressure Oxygen Trigger for 3 to 5 seconds

  4. Petrogen Multi-Fuel start up - Purge

  5. Open the Torch's Fuel Control Knob precisely 1 full turn (use the '+,-' decals to execute a precise turn)
  6. Petrogen Multi-Fuel start up - One Full Turn


When lighting the torch, strike the igniter directly at the tip. Striking sparks too far away will slow or even prevent ignition.


After ignition, rest the tip directly on the steel for 15 to 20 seconds allowing the flame and reflected heat from the metal to fully heat the tip. This allows the fuel to fully vaporize inside the tip. Make no flame adjustments during this period. Failing to allow the tip to fully heat will prevent proper flame adjustment. As the tip warms, the yellow and orange in the flame will disappear.

To increase efficiency, warm the tip in the location you plan to begin your cut, effectively preheating the metal while bringing the tip to cutting temperature

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