The Shop > Tools
Compressor safety, or how do I make sure an old compressor is safe?
vtsteam:
One other suggestion if you are worried or if on examination or test you don't like what you see..... buy one of those refillable portable air tanks and replace your present one. They're pretty reasonably priced.
Lew_Merrick_PE:
Your local welding gas company should be able to provide you with a pressure test & certificate for a reasonably low cost. ???
Henning:
Does it say anything more than Luna compact on the side of the tank? There should also be a sign somewhere...
If it does, i may be able to help with schematics and/or parts lists and maybe even a user manual.
mexican jon:
I really do have to commend everybody on being so safety conscientious :clap: but re-hydro testing a small compressor that probably has had little usage is probably going to cost more than what a new one could be purchased for :(. The big difference between a compressor and a boiler (I know they are both pressure vessels) is compressors have a set pressure control and a pressure relief valve and they charge to the set pressure at a given rate. Boilers whilst having a pressure relief valve basically get to pressure as quickly as you can heat the water and therefore are more susceptible to stress damage :scratch:.
I’m not for 1 minute saying that compressors don’t go bang because they do but generally a compressor that has been used in a stable inside environment will very rarely have a tank that won’t outlast the pump or other components :thumbup:.
But as I said at the start I really do have to commend everybody on being so safety conscientious :thumbup: :thumbup:
My main compressor in the workshop was built in 1948 and is still going strong :drool:.
mattinker:
Simon,
Plug all the holes, fill the tank up with water and inflate with a high pressure bicycle pump! I use the metal valve holder from an inner tube silver soldered into a screw plug to connect the pump. Commercial vehicle tyre fitters will give you old inner tubes. Pump up to twice the working pressure to test. I have a 500 litre tank that I need to test, half a ton of water to fill it up! An other alternative high pressure pump is a pressure washer.
Regards, Matthew.
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