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Tech & Fab
Fuel cells plastic vs. metal
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<blockquote data-quote="Outback" data-source="post: 889896" data-attributes="member: 16439"><p>I've fabricated many over the years both metal and plastic.</p><p>Both will crack, tare and otherwise degrade if incorrectly built or mounted.</p><p>Besides improper welding technique, lack of or incorrectly located baffles, and or incorrectly mounting or supporting an aluminum tank will contribute to cracking.</p><p>Probably the least expensive is to put the plastic tank in a steel can.</p><p>I prefer Aluminum tanks and am currently running a custom 40-Gal cross bed tank in my Fullsize.</p><p>Before you run foam in you tank be sure to check with the manufacturer of the foam as most specifically recommend against foaming a tank that will have "Pump Gas" in it because the crap that is in “Pump Gas†will eventually destroy the foam and it will plug the system, learned that on the hard way!</p><p>Roll over valves are a great idea!</p><p>Before you fabricate a tank consider that if that tank is involved in a fire (wreck) you are liable in court for as long as that tank exists. That and replacing a factory tank, even if it is of a better design on your rig, if you are involved in an accident where fuel is spilled if that tank is not DOT certified you could be seriously screwed!</p><p></p><p>Chris:beer:</p></blockquote><p></p>
[QUOTE="Outback, post: 889896, member: 16439"] I've fabricated many over the years both metal and plastic. Both will crack, tare and otherwise degrade if incorrectly built or mounted. Besides improper welding technique, lack of or incorrectly located baffles, and or incorrectly mounting or supporting an aluminum tank will contribute to cracking. Probably the least expensive is to put the plastic tank in a steel can. I prefer Aluminum tanks and am currently running a custom 40-Gal cross bed tank in my Fullsize. Before you run foam in you tank be sure to check with the manufacturer of the foam as most specifically recommend against foaming a tank that will have "Pump Gas" in it because the crap that is in “Pump Gas†will eventually destroy the foam and it will plug the system, learned that on the hard way! Roll over valves are a great idea! Before you fabricate a tank consider that if that tank is involved in a fire (wreck) you are liable in court for as long as that tank exists. That and replacing a factory tank, even if it is of a better design on your rig, if you are involved in an accident where fuel is spilled if that tank is not DOT certified you could be seriously screwed! Chris:beer: [/QUOTE]
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Fuel cells plastic vs. metal
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