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I Forge Iron

Dissambly of the Orifice


This is the orifice on my burner pulled. You can see the unthreaded area on the adapter that the washers are keeping from going into the threads on the tee.

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Gas Forges

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I guess I wasn't clear enough in my plans, you aren't the first person to thread the wrong end of the 1/8" MPT x 1/4" flare fitting and have to mickey mouse a way to mount it up. Kudos for making a working burner that way.

If you're hooking the 1/4 turn ball valve and a rubber hose directly to the top of the burner then follow the directions for using a 1/8" scd. 80 pipe nipple. The ID of 1/8" scd 80 pipe is nearly perfect to take a 1/4"x28 tap to match the threads on a mom-metric mig contact tip.

The 1/8"x1/4" flare is for connecting to 1/4" COPPER tubing, NOT rubber hose. I use copper tubing on mine as a heat shield for the propane. I have a 4 burner forge and it's not uncommon for one of the burners to chimney enough heat up it to burn rubber hose. The movable partition walls in my forge sometimes get bumped out of position or just don't seal against the lid so flame can get blown from one chamber to one that's not being used.

You can correct yours now if you'd like the 1/8" pipe tap uses a larger pilot drill than the threads on the flare fitting. However, you have that one working fine, it ain't broke no real need to fix it.

Frosty The Lucky.

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