Screwdriver
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The water merely prevents the possibility of a large volume of gas forming within an enclosed space.
By priming the vessel with water you exclude any gas.
How is that different from what I just said??
The water merely prevents the possibility of a large volume of gas forming within an enclosed space.
By priming the vessel with water you exclude any gas.
Its notHow is that different from what I just said??
First burner I did I couldn't get the valve off so I cut it with a hacksaw, drilled the valve slowly then filled it with water. It would still hold a flame after though.
View attachment 139408
First burner I did I couldn't get the valve off so I cut it with a hacksaw, drilled the valve slowly then filled it with water. It would still hold a flame after though.
View attachment 139408
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My personal "take away" is that when a flammable gas is enclosed in a volume it can either be too lean to even burn, too rich to ignite or - the bit in the middle. The bit in the middle is where the bottle explodes violently. A perfect flame front forms, burns the gas mixture perfectly, the flame front travels at supersonic velocity through the entire volume and the enclosed gas suddenly becomes superheated and wants to occupy a space several orders of magnitude larger than the one it is encased within. This happens very quickly and when that expansion is contained and all that pressure can't get out of the tiny aperture you've cut into the top, it will explode.
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Reminds me of the "gas tin experiment" we used to do in school chemistry. You took a cocoa tin, with a press-on lid, punched a small hole in the bottom and the lid and stood it on a tripod. You then filled the tin with mains gas through the bottom hole and when full lit the escaping gas at the top. The tall flame from the lid would gradually burn lower and lower until it disappeared inside the tin, then Bang, the lid would hit the ceiling. Never tried it with propane but I think I might.Chemistry was never my strong point at school, I couldn't be bothered to have to learn all the silly names and I think at the time I knew I didn't want to be a chemist anyway...
So if like Goldilocks you find one bottle is too lean, the other is too rich you're in luck. If on the other hand you just happen by chance upon the perfect stoichiometric ratio of propane to air, your luck just ran out...
Is the thread into the gas bottle left hand thread? Can't remember now, been a while since I recycled one.The best way to take the valve is by cutting of the shroud first. This gives access to a big pair of stillsons. Then a bar in one of the holes in the base ring. Apply force in opposite direction. It works every time
So if like Goldilocks you find one bottle is too lean, the other is too rich you're in luck. If on the other hand you just happen by chance upon the perfect stoichiometric ratio of propane to air, your luck just ran out...
Is the thread into the gas bottle left hand thread? Can't remember now, been a while since I recycled one.
It’s standard threadIs the thread into the gas bottle left hand thread? Can't remember now, been a while since I recycled one.
We used to do that with a Copaslip tin and oxy/acetylene when I worked in a garage.I remember an experiment we did at school with a syrup tin full of gas. There was a small hole in the lid and a light was applied to the escaping gas. When the pressure inside the tin fell the flame disappeared and then there was a bang as the lid flew off. The gas had become mixed with air to form an explosive mixture.
i said open it up not cut it up by taking the valve out and filling with waterThey can't do anything if you cut them open while full of water.
Having had a flame shoot out of a washed out bottle, its not something I want to risk again. The flame won't injure you but when you flinch holding a 9" grinder you risk all kinds of not fun things happening.
or takin the shroud off and giving the valve a good 3 bats on the side of it and it will come out easy with a 2 1/2 lb hammerThe best way to take the valve is by cutting of the shroud first. This gives access to a big pair of stillsons. Then a bar in one of the holes in the base ring. Apply force in opposite direction. It works every time
Reminds me of the "gas tin experiment" we used to do in school chemistry. You took a cocoa tin, with a press-on lid, punched a small hole in the bottom and the lid and stood it on a tripod. You then filled the tin with mains gas through the bottom hole and when full lit the escaping gas at the top. The tall flame from the lid would gradually burn lower and lower until it disappeared inside the tin, then Bang, the lid would hit the ceiling. Never tried it with propane but I think I might.