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air compressors

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williamjshaver

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have one of these portable air compressors on a 20 gl tank... 5 hp b&s motor on it.... find i have a small rust hole in bottom of the
tank... can you wield or braze thes to make them usefulll
 
(quoted from post at 16:40:40 12/03/21) have one of these portable air compressors on a 20 gl tank... 5 hp b&s motor on it.... find i have a small rust hole in bottom of the
tank... can you wield or braze thes to make them usefulll
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Some will say no problem just weld, braze, or solder the hole up. From having worked around pressure vessels and the related repairs I will say do not do it. An air compressor tank is a pressure vessel. To be repaired properly to code and recertified would likely cost more than the value of your whole unit; If you can even find a shop with the right code stamps that would touch one the size of your tank. One the size you have should be replaced. There are likely other spots in it ready to start leaking within a short time. And rusted areas can lead to catastrophic failures.

Buy a new tank, or whole compressor. You might find a used unit the compressor failed on that has a good tank you could mount your compressor and engine on.
 
I'm surprised someone said yes. When a hole shows up take it as a warning the tank should be replaced. Even a 20 gallon compressor tank can explode.
 
After owning this tank for 20 plus year,[speculating that you have] what does it really owe you? NOTHING. Get another compressor. Welding repair will be about 1/2 of the cost of a new one.CM
 
(quoted from post at 17:33:36 12/03/21) I'm surprised someone said yes. When a hole shows up take it as a warning the tank should be replaced. Even a 20 gallon compressor tank can explode.
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So am I, but on the wonderful internet you can find people giving instructions on repairing air tanks, weld, braze, solder. Gambling with a bomb in reality.
 
look for a blowed up oil less compressor, they don't last long enough to rust out. Took a little fabrication but this tank is off an oil less.
cvphoto109868.jpg
 
I welded one that was cracked by a leg from moving it. I turned the stick welder up extra high to test if it burned through too easy. It didn't & I used that compresser for many years. I would do the same & if it is rusted thin, it will burn through easy. Then pitch it.
 
When a compressor develops a pin hole it's just the first to come through. The entire bottom is rusted out from one end to the other. By patching one hole now and then you allow the rusting process to continue until the metal on the bottom deteriorates to the point where a large hole suddenly ruptures. Then the entire compressor can become airborne.
 
If caused by rust, and in bottom of tank, I would forget it. Find another tank. Its likely to thin to patch. And even if dobbered up, more holes are to follow in pretty short order. This one is just the first of several to make it through to the outside.
 
Best case, braze it and it holds. Next is you braze it and a dozen new holes open up from the heat. Worst is you fix it and next day it turns into a bomb.
 
yeah going boom , not what i want, anyhow tried a liq metal fix, it holds.....we''ll see how long it works, i run it outdoors only, park it
far away, point the patched end away from me.... yeah just in case.
 
I have a compressor with an 80 gallon tank that needs replacing. They want more for just the tank than I paid for the whole compressor new.
 
Used oil-less air compressors tend to sell for under $100. See if you can mount your compressor on one of those tanks. There should be an ASME certification tag on the tank with the manufacture date.
 
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