Disposable Gas Bottles

Hi, I have a 60L one that states the pressure at 60Bar at 60 C. Testing pressure PH 165, I doubt many home compressors will reach very near that pressure and I have welded a BSP socket onto a couple in the past to get a little extra reserve pressure for a paint spray gun which have had 160 PSI in them without any problems. But of course we do these things off our own bat as long as no one else is put in danger.

Regards Nick.

NDIY mentioned the effects of breathing it, which in volume could be nasty. A lungful of 14% Carbon Dioxide would disrupt the breathing reflex and Argon is a suffocating gas - no oxygen. Knocking the top off would cause the cylinder to fly about, and rapid release of gas causes a strong freezing effect. I suppose you could lose all your teeth, choke, and have frost-bitten lungs!

Not very likely a little bottle would do all that but I guess the sellers want to be sure they don't get sued.

Dave

Hi,I remember compression fittings being used on hydraulics down the pit .I used to fit them on 50mm steel pipes that carried soluble oil mixed with water at a pressure of 4000psi and 200gpm.They were often a mile in length.

Maurice

Great thread, I remember bing in this situation, those little cylinders don't last long.

Two solutions:

Firstly as stated above, cut them up, and chuck them in the general metal scrap bin at the tip if you insist they are not useful steel.

Second solution to further issues, get a gassless MIG. Amazing machines, far easier to use. The mess I make is no worse than the mess I made with a normal MIG.

Nick's bottle says "Store in a well-ventilated place" and "Ventilate the area in case of leaks", which both make sense.

However, it also says "Do not allow bottle contents to leak into the atmosphere" in the Instructions for Use. We're obviously not talking flying bottles or huge build-ups here. I'm still as puzzled as I was why they use that wording.

George B.

Hi, as GeorgeB says, it is puzzling, the very intended use allows it back into the atmosphere. However both Argon and CO2 are heavier than Air, so in a small unventilated space, it can build up to an unbreathable atmosphere especially if you get through two or three of them in a short period of time.

Regards Nick.

Edited By Nicholas Farr on 18/01/2021 00:02:28

I've made a small disposable argon bottle into a piggy bank. Not such a useful thing now that nobody uses cash anymore!

John

Edited By V8Eng on 18/01/2021 10:36:09

Edited By V8Eng on 18/01/2021 10:37:04

I know of a case when the valve was broken off the top of an G size, large, Oxygen bottle. Took off like a rocket. Fortunately no one was injured.

A quick search with google will show LP Gas cylinders repurposed as stoves. The original Ozpigs were converted gas cylinders. Do so with caution if you convert one.