Compressor tank exploded on craftsman / devilbiss compressor

by Gregg Pfaff
(Elkhorn, WI.)

Blown compressor tank

Blown compressor tank

Blown compressor tank
Compressor tank blew up
Blown compressor tank
Compressor tank blew up

this compressor was a 1978 model and was stored for many years but, only used aprox 5 years. it doesn't appear to be rusted out. it was not up to its operating pressure and was running when it blew.


I was wanting to contact devilbiss but, cannot find their contact emails.

I contacted Sears with some responses. What were Sears responses, I wonder?

What do you think?
http://s1297.photobucket.com/user/magnamanV65/library/
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Gregg. I sure hope no one was hurt when this air compressor tank exploded. Compressed air is a very powerful force as your photos so eloquently display. Thank you for sharing them with us.

So, what do I think?

I think that you have a compressor tank that is approximately 35 years old, and I surmise was left for many years without the tank drain being open to allow condensate and free water to drain out.

In time, that water in the bottom of the tank weakened the metal.

It is not a surprise to me that the tank blew along the bottom then, as that would be where the moisture had gathered to corrode the tank.

I think that all concerned were lucky that no one was badly hurt or even killed by the exploding tank. Fortunately, the rupture pattern is typical of a metal tank, in that it blows open, but does not normally hurl bits of metal around the area.

And, I think you need a new tank! :-)

Cheers and again, glad you were not hurt.

Bill

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Homemade compresser tank installation

by tom
(ontario canada)

Two horse motor from mastercraft and all the goodies from the compressor want to add the flotec tanks and put it all together

need to get info on the settings the flotec tank is the same thickness as the 5 gallon of the mastercraft compressor

any help with this and help for the switch settings would be great

the pressure switch i have says ON 85 psi and off 115 psi want to bring up the 85 to 90 and the 115 down to 100 my email is nighthawk_178@hotmail.com please get in touch with your help thanks
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Tom, good to hear from you. Sorry, but I don't respond to requests for direct contact unless it's to design a circuit as a job. There are just too many comments and not enough of me to go around.

I'm not quite sure what you mean about the tank settings?

Adjusting the pressure switch is doable, check on the Pressure Switch page for details.

See the plumbing air section and the fittings section to help you determine what you need.

All that information is here for the taking.

Cheers,

Bill

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150 PSI into a 125 PSI tank?

I HAVE A 125 AIR TANK CAN I PUT IN 150 LBS OF AIR.
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Friend, you can do anything you want. The problem is, if the tank isn't rated for the 150 PSI, you may have a catastrophic failure. There may be a metal plate on the tank that shows it's upper pressure level. If not, the tank is part of a compressor I presume, and if the pressure cut out of the compressor is 125 PSI, you do put yourself a bit at risk by pumping in 150 PSI.

However, if the tank has a PRV, and it's set right and working right, then if you lean towards over pressurization, that PRV should open and vent the air before it becomes dangerous.

Your call. Generally, it's not something I would do. If you need 150 PSI you should make sure you get a tank that's rated for more than that pressure level.

Cheers,

Bill

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