Jack Pine Savage Posted February 5, 2021 Share Posted February 5, 2021 Hi I am building my gas forge from a compressor tank. I just received two burners I purchased and want some advice. First off I was surprised to see a restrictor plate with holes on the end of my burner tip. I fired them up and really don’t know how they look. Adjusting the nozzle in and out of the burner tube didn’t have a lot of effect on flame. They are Fucina burners. How does this flame look and do you think it would help to either make the holes larger in the plate or to remove it. It seems like it would create back pressure. The flame starts like 3/8 inch out from the plate and is pretty finicky about getting too much air. Just really not sure if this flame looks good. This is my first post to the forum Quote Link to comment Share on other sites More sharing options...
Irondragon Forge ClayWorks Posted February 5, 2021 Share Posted February 5, 2021 I would think if the burners were designed to run with a restrictor plate, they would not preform well without it. It would help to know where in the world you are located. Quote Link to comment Share on other sites More sharing options...
Lobo Posted February 5, 2021 Share Posted February 5, 2021 Hi, Those seem like high quality burners. If you're unsure, it wouldn't hurt to contact the manufacturer. Quote Link to comment Share on other sites More sharing options...
swedefiddle Posted February 5, 2021 Share Posted February 5, 2021 Good Morning, I have 2 very similar nozzles. I can't remember the name of the burners (Rex-o-therm?), but I bought them from a furnace/stove supplier locally. Mine work very well in a hot box Forge, naturally aspirated. Neil Quote Link to comment Share on other sites More sharing options...
pnut Posted February 5, 2021 Share Posted February 5, 2021 I wouldn't bother trying to tune it until it's in a forge. They will run differently in the air than mounted on your forge. Pnut Quote Link to comment Share on other sites More sharing options...
Jack Pine Savage Posted February 5, 2021 Author Share Posted February 5, 2021 Thanks for the help. The build has gone well so far just lit things up last night and thought I don’t have a clue if that is a good flame. I am using a 7 gallon compressor tank, 2” kaowool, Simwool rigidizer, Hell’s forge castable refractory cement, CTI 100 coating. I have the burners coming in tangent to the tank radius. Start putting in the kaowool this weekend. I appreciate the help. I added my location. I am in Caldwell Idaho. I am a Michigander now living in a desert where nothing rusts! Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted February 5, 2021 Share Posted February 5, 2021 Lets see; 8 gallons is a cubic foot of water. 1728 ci so 7 gallons would be 1512 ci now subtract the thickness of the liner---nope not enough info to get cubic inches per burner... Quote Link to comment Share on other sites More sharing options...
Jack Pine Savage Posted February 5, 2021 Author Share Posted February 5, 2021 509 cubic inches. Maybe a little less with a small floor of castable on the bottom Quote Link to comment Share on other sites More sharing options...
Mikey98118 Posted February 5, 2021 Share Posted February 5, 2021 "Restricter plates"? That is the first time I've heard a name for them, but have been thinking about the design since blue flame lighters hit the market a few years back. First ting to know is that They may have been designed for a different fuel than you're are using in them. You need to check that out. Second thing is that all of them are designed to be used with secondary air available to the burner, so don't attempt to seal them in your forge. Third thing is that they probably can't be tuned to a completely neutral flame, but can be tuned close enough. So don't get in a sweat trying to obtain the impossible. Good luck with them, and keep us posted. Quote Link to comment Share on other sites More sharing options...
Frosty Posted February 6, 2021 Share Posted February 6, 2021 I don't think that's a "restrictor" plate as much as it shapes the flame. The entire mixing tube being tapered allows a crazy turn down range while maintaining a proper fuel air ratio. There were similar burners in the asphalt lab to heat glassware evenly and not turn a sample into a bad ash content test. The ones in the lab burned NG but it was easy to buy orifices for other flammable gasses, propane being first on the list but others, even acetylene were available. No telling what gas you'll be able to find in the field. Flame holders on lab burners tended to be screen covering the outlet, Fisher Burners being an easy to search example. It's an interesting burner, I don't know how good a forge burner it'd make but I'd like to have one to play with and see. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
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