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  #31 (permalink)  
Old 01-24-2010, 11:21 AM
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I know this thread is done, but I'd like to make a comment. First I agree with what Red and what he said. Also, I used to work in a truck shop ( for 30 years) and seen some air tanks explode. One smaller verticle tank was welded around the seam at the top, due to a rust leak , and during the pressure check after welding, the top blow off with pieces of rust and metal in the guys body . Another one : Our trucks had this very large air tank mounted under the cab, opposite the fuel tank and just as big, it was used for 'air starters' which were popular years ago . Anyway, a combination of problems caused the air tank to explode , the truck looked like land mine exploded under it, and , yes, the driver was killed ....money or your life...... you decide

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  #32 (permalink)  
Old 01-24-2010, 02:12 PM
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Quote:
Originally Posted by knighthawk
Our trucks had this very large air tank mounted under the cab, opposite the fuel tank and just as big, it was used for 'air starters' which were popular years ago . Anyway, a combination of problems caused the air tank to explode , the truck looked like land mine exploded under it, and , yes, the driver was killed ....money or your life...... you decide


Amazing how much damage one of those things can do! The one I mentioned involving a truck was at a mine in Kentucky, a DM800 Mack that was being used as a fuel service truck and had an air compressor to power the grease pumps mounted behind the cab. That one had been welded around one of the mounting feet where a crack had developed, probably due to vibration, and when it let go there was not enough left of the tank to determine for sure where the crack had started. Whether it started at the welded crack or another weakened area does not matter because the fact a crack had developed was a sure indication that the tank was finished and should have been scrapped! The force of the explosion ripped the top of the cab off and peeled it forward leaving it upside down on the hood, a mechanic working nearby was seriously injured to the point that it required MSHA (the mining equivalent of OSHA) being called in to investigate. These things do happen and it just gives me chills to think that someone would even consider welding a crack or a hole in a tank never mind cutting an old tank apart and trying to put it back together after patching it!
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Old 01-25-2010, 04:30 PM
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I think the point has been made, but I'd to comment once more..... hydrostatic tests are required on most air pressure tanks, and hoses, gas bottles, also fire extingushers, water is pumped in up to or beyond the pressure limit, even if, or when it explodes, all you get is big bath or shower
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Old 01-25-2010, 05:45 PM
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rusted holes in air compressor tanks

Well, I drain mine every time I use it the gas powered 1. The electric compressors, I installed a electric dump valve thats on a timer that blowes off every 8 hrs. for 30 seconds. Guess WHAT ? I don't have (haven't had ) that problem in 40 yrs.
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