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Compressor safety, or how do I make sure an old compressor is safe?

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wgw:
A small tank like that (well it looks small from here) would be no worse than a car tyre bursting really. My cheap compressor is about 20 yrs old and I've had no problems. Bought new pressure switch and safety valve and drain regulary. A good tap all round the tank will show any badly corroded areas.

mattinker:

--- Quote from: wgw on May 15, 2015, 09:33:31 AM ---A small tank like that (well it looks small from here) would be no worse than a car tyre bursting really. My cheap compressor is about 20 yrs old and I've had no problems. Bought new pressure switch and safety valve and drain regulary. A good tap all round the tank will show any badly corroded areas.

--- End quote ---

I don't agree, the tank is made out of steel and the working pressure well above that of a car tyre. I'm not sure why you refer to your compressor, the state it's in and whether or not it's any good has nothing to do with Simon's compressor!

Regards, Matthew

lordedmond:
It a mine field

First you need to get one or two of the access bungs out then with a boroscope have a good look to see if there are any blisters of rust , then tap on the out side at that site with a ball pane hammer to see if it gives .

If the tank as a name plate it should give you the test details and retest date

Then if all looks ok do a hydro test

Then you need to prove the safety valve and the unloading valve are operating correctly

The electrics should be ok as you have run it

IMHO I would dump the tank as a unknown and buy a new tank and use that instead.

No I am not a pressure vessel inspector but I have seen and had to witness a large number of tests some small some big where the inspector climbed in though the inspection hole.

Stuart

RobWilson:

--- Quote from: wgw on May 15, 2015, 09:33:31 AM ---A small tank like that (well it looks small from here) would be no worse than a car tyre bursting really.

--- End quote ---

You reckon !   :loco:

Rob

Manxmodder:
WGW,Don't underestimate the damage an exploding car tyre in close proximity to a person would have.  There are plenty of health and safety records of fatal accidents involving exploding tyres,and as Matt says a metal receiver exploding in a confined space would have devastating consequences.......OZ.

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