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07/19/2022 02:09PM |
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07/19/2022 07:16AM |
This is a common problem with Sigg bottles and some others that use a thread insert, and the standard O-ring.
MSR bottles were designed from the beginning to be one piece, the "child proof cap"
also had other functions than being difficult to open.
butthead
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07/22/2022 06:21PM |
butthead: "
I still have a problem with users of MSR stoves flipping the fuel bottle to shut off. The MSR fuel line to pump connection is not designed to rotate like the quick fittings on Optimus and Primus fuel connections. Maybe I am over-cautious but the assembly is a potential pressurized fuel air bomb.
butthead"
At risk of sounding stupid (never stopped me before:) ) how do you flip a fuel bottle to shut the stove off? Is this relevant to my Dragonfly? I just turn the bottle valve off, let it drain the line to the stove, cool, then disconnect stove. There are specific instructions on how to do this…I am as guilty as any man on not reading instructions…except when the item can burn my face off…
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07/23/2022 12:11AM |
I pretty much do This And can’t see any alternative?
T
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07/22/2022 10:35PM |
butthead
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07/23/2022 08:11AM |
Anyway I see I wandered off topic of fuel bottle failures and just dumped in a practice I have seen and read about that seem hazardous.
butthead
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07/19/2022 08:56AM |
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07/19/2022 10:12AM |
butthead: " National Wildfire Coordinating Group warning for fuel bottles
This is a common problem with Sigg bottles and some others that use a thread insert, and the standard O-ring.
MSR bottles were designed from the beginning to be one piece, the "child proof cap"
also had other functions than being difficult to open.
butthead"
That was the piece I read before posting. It's twenty years old and I'm not sure what improvements have occurred by the non-MSR manufacturers since then. I know Primus bottles are seamless but I'm not sure if they use a threaded insert. I can't tell by looking at it.
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08/14/2022 07:13AM |
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07/17/2022 06:26PM |
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07/17/2022 08:02PM |
billconner: "I've always filled spare to brim. No problems. "
This is also my practice.
I can't recall when I have ever had cause to leave a spare fuel bottle warm in the sun.
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07/18/2022 06:39AM |
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08/12/2022 01:02PM |
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08/14/2022 09:38AM |
blackdawg9: "butthead: " National Wildfire Coordinating Group warning for fuel bottles
This is a common problem with Sigg bottles and some others that use a thread insert, and the standard O-ring.
MSR bottles were designed from the beginning to be one piece, the "child proof cap"
also had other functions than being difficult to open.
butthead"
I don't think your going to reach that kind of heat needed to make it bulge. That link is for wild fire firefighters. Where your going to hit high heat and external heat. Causing the bulge . Those guys were filling containers completely full. To fill saws and drip torches.. I know I have seen my saw tank swell in the heat. Maybe some of that is the gas oil mix? Just fill it up the hottest time of the day. Then pour some off, as soon as you can. I just wouldn't be hauling it in a hot barrel. Wet gas stoves aren't usually chosen for being lightest. Just add another can"
I'm more concerned with thread failure than bulging and the (old?) SIGG use an insert that is crimped and a potential failure point. MSR dose not use an insert. That was the point of my post.
butthead
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08/13/2022 08:10PM |
butthead: " National Wildfire Coordinating Group warning for fuel bottles
This is a common problem with Sigg bottles and some others that use a thread insert, and the standard O-ring.
MSR bottles were designed from the beginning to be one piece, the "child proof cap"
also had other functions than being difficult to open.
butthead"
I don't think your going to reach that kind of heat needed to make it bulge. That link is for wild fire firefighters. Where your going to hit high heat and external heat. Causing the bulge . Those guys were filling containers completely full. To fill saws and drip torches.. I know I have seen my saw tank swell in the heat. Maybe some of that is the gas oil mix? Just fill it up the hottest time of the day. Then pour some off, as soon as you can. I just wouldn't be hauling it in a hot barrel. Wet gas stoves aren't usually chosen for being lightest. Just add another can
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07/17/2022 09:54AM |
I always thought the fill line on white gas fuel bottles, which can can rob you of over 1/10 of fuel on a 1 L or 34 oz bottle was designed to accommodate the volume of the pump, provide a suitable air chamber for compression and to ensure the intake stays above the fuel level when you flip the bottle to the "Off" position. While all of that is true, I figured since I only use my smaller 0.6 L or 20 oz bottle to run the stove, why not just top off the extra bottle(s)?
Fortunately, I decided to research this before relying on my theory. Turns out these aluminum bottles can rupture if overfilled and left in the sun. It seemed like most of what I found online was over twenty years old and perhaps the technology has improved. Regardless, if you had the same thought about topping off your spare bottles like I did, I would avoid doing so.
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07/17/2022 12:38PM |
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07/22/2022 10:52AM |
If you look close the crimp on to of the threaded insert is visible on the Sigg bottle left. The MSR bottle right has cut threads, no insert.
I still have a problem with users of MSR stoves flipping the fuel bottle to shut off. The MSR fuel line to pump connection is not designed to rotate like the quick fittings on Optimus and Primus fuel connections. Maybe I am over-cautious but the assembly is a potential pressurized fuel air bomb.
butthead