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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Things you already knew
A friend sent me a link. Time for a reminder about air tanks
http://www.doli.state.mn.us/airtank.html |
#2
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Things you already knew
RoyJ writes:
http://www.doli.state.mn.us/airtank.html "The accumulation of water in the vessel caused severe corrosion ..." Puhleeze. Every working compressor tank has water in the bottom all the time, drain or no drain. The drain just keeps it from taking up a significant volume. |
#3
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Things you already knew
Richard J Kinch wrote:
RoyJ writes: http://www.doli.state.mn.us/airtank.html "The accumulation of water in the vessel caused severe corrosion ..." Puhleeze. Every working compressor tank has water in the bottom all the time, drain or no drain. The drain just keeps it from taking up a significant volume. But you're wrong , Dick . A well-maintained tank will have very little water in the bottom . Our tanks at work (cabinet shop) all have automatic drains , in addition to dryers between the tank and compressor . -- Snag wannabe machinist |
#4
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Things you already knew
Terry Coombs writes:
But you're wrong , Dick . A well-maintained tank will have very little water in the bottom "Very little", eh? Some liquid will always be there, and the atmosphere is at 100 percent saturation. So from a corrosion standpoint, draining has no effect. There is always some standing liquid water. Our tanks at work (cabinet shop) all have automatic drains Which always leave some liquid in the tank, and do absolutely nothing to the condensing ambient atmosphere in the tank. in addition to dryers between the tank and compressor. Which has nothing to do with conditions inside the tank itself. Now, a dryer between the compressor pump and the tank, that could be putting dry air in the tank, which is the only way around this problem. Don't be ignorant and think that draining a tank has anything to do with corrosion protection. You drain tanks to minimize the buildup of volume displacement. |
#5
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Things you already knew
Richard J Kinch wrote:
Every working compressor tank has water in the bottom all the time, drain or no drain. The drain just keeps it from taking up a significant volume. And I can predict with reasonable certanty, the bottom of my tank will fail first. Wes |
#6
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Things you already knew
On 2008-07-31, Wes wrote:
Richard J Kinch wrote: Every working compressor tank has water in the bottom all the time, drain or no drain. The drain just keeps it from taking up a significant volume. And I can predict with reasonable certanty, the bottom of my tank will fail first. Attach stabilizing fins to it, so that if the bottom falls off, it would rocket upwards instead of at you!!! -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ |
#7
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Things you already knew
On Jul 31, 4:35 pm, Wes wrote:
Richard J Kinch wrote: Every working compressor tank has water in the bottom all the time, drain or no drain. The drain just keeps it from taking up a significant volume. And I can predict with reasonable certanty, the bottom of my tank will fail first. Wes So, seeing that it really wouldn't add much to the production costs of a tank, why don't they slosh some epoxy around inside it after manufacture? They line gasoline storage tanks with epoxy to prevent corrosion. It wouldn't be a big deal to have a device that randomly tumbles a rack of clamped-in air tanks to move the stuff around (like the PVC molding technology used to make big plastic water tanks and dumpsters and the like) and then remove the plugs and tap out the hardened epoxy from the pipe ports. If it's stuck good the air won't get behind it and blow it off if the tank is drained. Dan |
#8
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Things you already knew
Ignoramus25244 wrote:
Attach stabilizing fins to it, so that if the bottom falls off, it would rocket upwards instead of at you!!! Hopefully, the pinhole leak will first appear. Wes |
#9
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Things you already knew
On Jul 30, 8:46 pm, RoyJ wrote:
A friend sent me a link. Time for a reminder about air tankshttp://www.doli.state.mn.us/airtank.html Looks like that could have been detected as a problem by whacking the bottom of the tank with a hammer. Unpressurized, of course. Dave |
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