Why acetylene cylinders are not to be in lying down posistion?

Question

I know that in oxy acetylene cylinder cutting acetylene cylinders are not to be in lying down position.I need to know the technical reason behind it.

Answer 1

Acetylene cannot be stored without being dissolved in acetone.
Acetylene stored in a free state under pressure greater than 15 psi can be made to break down by heat or shock and possibly explode. Under pressure of 29.4 psi, acetylene becomes self-explosive, and a slight shock will cause it to explode spontaneously. However, when dissolved in acetone, it can be compressed into cylinders at pressures up to 250 psi.

If you tip it the acetone will be discharged.

Answer 2

Acetylene is stored as a compressed gas in the form of a liquid. When the valve (on top) is opened some of the liquid turns to gas. If the cylinder is on its side liquid would come out and could be very dangerous for equipment not designed to handle it.

Answer 3

If the cylinder is subjected to a high temperature, the plugs will melt and allow gas to escape before the pressure builds up enough to burst the cylinder.

(if its stored any other way liquid will escape and thats not a good thing!)


Cylinders must be secured in an upright position with their valve protection caps on. Cylinders must also be separated from oxygen cylinders by 20 feet or by a 5-foot high wall with a fire resistance rating of at least ½ hour.

Answer 4

Cylinders should not be dropped or allowed to come into violent contact with each other. They should be stored and used in an upright position, thus preventing the liquid passing through the regulator and into the equipment.

Also in the even something were dropped and landed on the valve of the tank it could potentially turn it into a missile.

Answer 5

The acetylene cylinder is full of liquid acetone which helps keep the acetylene stable/safe. If you tip it, the acetone will come out.

Answer 6

Acetylene cylinders are filled with small balls +- 3mm - 1/8" big. these balls can enter the valve and prevent gas flow or valve closer.

Answer 7

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