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1/10 Acetylene withdrawal rule.
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<blockquote data-quote="504RP" data-source="post: 1802795" data-attributes="member: 40335"><p>Your right about that. I very well could be. From the time I graduated high school until I turned 30 I worked construction and was an iron worker. Used acetylene torches a lot during that time. Never had or saw a tank accident. Took welding at a vocational school. But other than issuing us a text book on welding there wasn't much class room instruction. They didn't even go over the basics on how to set tank pressure. Guess they expected us to read the book at our leisure. Which isn't nothing wrong with that I guess.</p><p></p><p>Never even give the possibility of a tank exploding a second thought during all of that time until I got these big 2 & 3 foot diameter x 14 & 24 foot in length 1/2 to 3/4 inch tanks gave to me. That I want to cut in half length wise to make cow feeders out of. That was when I was looking into seeing what would be the best way to cut them. Bought a miller trail blazer welding machine a few years ago with the intentions of buy a plasma cutter to run off of the welding machine.</p><p></p><p>So after researching the internet, reading a lot, watching a lot of videos, reading a lot of welding forums. I learned some things I had never heard about like the 1/7, 1/10, 1/15 rules. Why you shouldn't lay acetylene bottles on their side and all the rest of that stuff. And after learning that stuff I was able to understand why I had never had a bottle blow up on me after all of the years and time's I have used acetylene torches.</p><p></p><p>The reason for me not ever having come close to that happening was because 90 % of that time. The acetylene bottles I used were bigger bottles than what I used after I bought my own torch and bottles. In that welding school they had 350 cubic foot bottles. Most construction jobs had 250 cubic foot or bigger capacity bottles. And 90 % of the time myself I never continually cut 3/8 to 1 inch and bigger metal for an hour or more at a time. So I never came close to going over the withdrawal rate of those large capacity bottles like I can easily exceed now using these smaller 145 cubic size 14 acetylene bottles at home.</p><p></p><p>145 cubic foot bottles are what a lot of people use for homes or small shops. People who's majority of cutting is on 3/8 and smaller metal or even 1 inch that might only take a few minutes to cut. So unless they happen to need to cut a peace of 1 inch plate that would take say 15 minutes to cut and the tank is already next to being empty. They probably want draw acetone out of the bottle when doing so. But it could happen and could blow a bottle up.</p></blockquote><p></p>
[QUOTE="504RP, post: 1802795, member: 40335"] Your right about that. I very well could be. From the time I graduated high school until I turned 30 I worked construction and was an iron worker. Used acetylene torches a lot during that time. Never had or saw a tank accident. Took welding at a vocational school. But other than issuing us a text book on welding there wasn’t much class room instruction. They didn’t even go over the basics on how to set tank pressure. Guess they expected us to read the book at our leisure. Which isn’t nothing wrong with that I guess. Never even give the possibility of a tank exploding a second thought during all of that time until I got these big 2 & 3 foot diameter x 14 & 24 foot in length 1/2 to 3/4 inch tanks gave to me. That I want to cut in half length wise to make cow feeders out of. That was when I was looking into seeing what would be the best way to cut them. Bought a miller trail blazer welding machine a few years ago with the intentions of buy a plasma cutter to run off of the welding machine. So after researching the internet, reading a lot, watching a lot of videos, reading a lot of welding forums. I learned some things I had never heard about like the 1/7, 1/10, 1/15 rules. Why you shouldn’t lay acetylene bottles on their side and all the rest of that stuff. And after learning that stuff I was able to understand why I had never had a bottle blow up on me after all of the years and time’s I have used acetylene torches. The reason for me not ever having come close to that happening was because 90 % of that time. The acetylene bottles I used were bigger bottles than what I used after I bought my own torch and bottles. In that welding school they had 350 cubic foot bottles. Most construction jobs had 250 cubic foot or bigger capacity bottles. And 90 % of the time myself I never continually cut 3/8 to 1 inch and bigger metal for an hour or more at a time. So I never came close to going over the withdrawal rate of those large capacity bottles like I can easily exceed now using these smaller 145 cubic size 14 acetylene bottles at home. 145 cubic foot bottles are what a lot of people use for homes or small shops. People who’s majority of cutting is on 3/8 and smaller metal or even 1 inch that might only take a few minutes to cut. So unless they happen to need to cut a peace of 1 inch plate that would take say 15 minutes to cut and the tank is already next to being empty. They probably want draw acetone out of the bottle when doing so. But it could happen and could blow a bottle up. [/QUOTE]
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