Kintan

This is all true.  For me though, the galvanized pipe was left over from a job at my work.  I like saving when I can so this was one of those instances.  I appreciate your comments though.  Down the road if I decide to become a 2 burner man I will definitely keep those tips in mind.

I got it figured out.  I ended up grinding the 3/4" black iron pipe a little bit and got it to fit.  Then I primed and coated everything wtih high temp paint.  Works great.

Thanks guys.  Mikey I must have missed that part.  What happens when you read it on a phone I guess.  However, I wasn't going to have a slot in the sleeve.  I was going to just have a tapped hole with a thumb screw for adjustment.  Mr. Rotblatt, that sounds like a great idea.  I will probably give that a shot.

Hey guys!  First time posting but been reading and browsing as a guest for awhile.  I am currently building my first propane forge and have a question. I am building a burner similar to the one in Mike Porter's book Gas Burners for Forges, Furnaces, and Kilns.  I have all the parts and am working on the vent and choke sleeves for the accelerator tube.  I have seen many designs that use a choke sleeve and everyone seems to find a pipe that nicely slides on their 3/4" or 1" black iron pipe.  I however have not been so lucky.  I cannot find anything that will fit without a huge gap around the smaller diameter pipe.  Do I need to just suck it up and file and grind the larger diameter pipe to fit or am I missing something here.