Hi all. I have managed to light up my last X246B (green tank) purchase and made it run for couple of hours on my camping weekend. It was not easy as vaporiser did not supply enough fuel to the burner and burner not mixed it with air properly. One or the other or both. I cannot distinguish exact problem, but over pressurised tank has a bulge on the tank bottom and is bouncing when placed on even ground. Anyway it works now ... but. Compares to my other X246b (red tank) It glows more red-ish/orange warmer light with red lining around the mantle. Also, produces more heat radiating into control cock. Have you got any suggestions please? Thank you.
@Groggy With an overpressurised tank, meaning the soldered seam at the bottom is fractured, I’d be getting a new lantern or at least an undamaged tank. I note you say it’s getting hot. Getting hot, and a damaged tank is not a good combination. Tony
Yes, I am concerned about the tank. I just wondered if not adequate fuel supply is not the reason for the thank to be over pumped in the first place?Obviously health an safety is paramount.
Pity about the bulge because it looks good. As Paul suggested swap parts off the green one onto the good red one. I would start with the hood assembly then the vapouriser.
I have posted this Lantern/lamp fount applied force calculation a couple of times and it’s time to do so again. Tank Pressure - Applied Force Understanding that when the 7.5” or 19cm based fount is pumped up to 2 bar, 29psi or 200kPa, working pressure there is a pressure force of over 1300lbs or 580kgs exerted on the base. Any flat plate surface will flex or bulge with this force. A lamp that operates with the fount’s base pressure of around 1300lbs force, or 580kgs, a fount full of fuel and flame on top all contained by a stretched and distorted weakened seam or base ........ what could go wrong? The question is how much? I would gauge it acceptable if the lamp sits on a flat surface without rocking on the bulge. As soon as there is evidence of the bulge causing the lamp to rock or when turning the lamp over and seeing scuff marks on the base caused by over bulging ...... I would deem it “blown” and condemn the afflicted fount. Here is the actual calculation that was used to calculate the applied force to the base of a typical lantern. Pressure = Force/Area Force = Pressure x Area Area of the lantern’s base plate. Fount base diameter of 7.5in - 19cm, with a pressure of 2Bar - 29psi - 200kPa Area = π (Pi) times the Radius squared: A = π r2 or, when using the Diameter: π/4 times the diameter squared: A = (π/4) × D2 Area in imperial units. A = 3.143 x 3.75 x 3.75 A = 44.2 Sq ins Area calculated in metric units. A = 3.143 x 9.5 x 9.5 A = 283.6 Sq cms. Now the applied force on the base of the lantern. Force = Pressure x Area Force Imperial: = 29 x 44.2 = 1282lbf Force Metric: = 200 x 283.6 = 567kgf Cheers Pete
Here is my 20 cents worth, I would only keep it as a shelf queen because of the risks involved, also its a very nice looking colour. X246B are a dime a dozen very easy to replace that's just my opinion, in the end it's up to you. Good luck if you keep using it stay safe, these guys know what they are talking about and have great knowledge.
Well, It seems my problem is solved by obvious reason. I need to decommission it from service. At least, I will have a some spare parts off it. Thanks so lot.
