Re: dent in gas tank

Posted by Air Compressor Guy on January 22, 2003 at 18:03:45 from (12.45.76.149):

In Reply to: dent in gas tank posted by rob on January 20, 2003 at 20:11:04:

Just want to expand on the DON'T USE AIR PRESSURE theme. I've been designing ASME pressure vessels for an air compressor firm for a number of years now and have investigated the aftermath of catastrophic failures... not pretty. If you enjoy the roof on your garage, not to mention parts of your body, don't mess with it.

Since we are here, care must be taken with your air compressor tank. Most tanks are design to last only seven years (statistically this almost eliminates the catastrophic failure mode). If you have an air compressor and it is more than seven years old you may want to consider purchasing a new tank for it. Also, under no circumstance should you weld to it. When you weld to it you need the arc to be at the right intensity, use the correct wire and shielding gas, and use the correct steel alloys. We use specialized techniques with highly trained welders to make our pressure vessels, quite honestly it's the only thing keeping our operation from not shipping out to China (much to the dismay of upper management).

My final note before I get off of my soap box. If you own a compressor who's tank was manufactured in China I would stop using it immediately. I have not come across a tank from China that does not have serious design flaws, and I have looked at dozens of examples. Remember in China it's all about how many units you can produce in an hour, they view people as being replaceable.

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