Do you know the real reason why acetylene cylinders cannot be placed lying down?

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Safety managers often wonder why acetylene cylinders must be stored and used in an upright position, and not laid down There are four reasons for this: Reason 1: Acetylene cylinders contain fillers and solvents (propane). When used in a horizontal position, propane tends to flow out along with the acetylene gas, which not only increases the consumption of propane but also lowers the combustion temperature, affecting performance. Additionally, backflow can occur, leading to explosions of the acetylene cylinder. Reason 2: When acetylene cylinders are placed lying down, they tend to roll, and the cylinders can collide with each other or with other objects, generating energy that can lead to accidents involving these cylinders. Reason 3: The acetylene cylinder is equipped with shock-absorbing rubber rings to prevent collisions during loading, unloading, transportation, and use. The rubber ring is an insulating material; when the cylinder is placed in a horizontal position, it is equivalent to placing the acetylene cylinder on an electrical insulator. This prevents the static electricity generated on the cylinder from dissipating into the ground, causing it to accumulate on the cylinder itself, which can lead to the formation of static sparks. In the event of an acetylene leak, this can easily result in fires and explosions. Reason 4: When in use, the acetylene cylinder valve is equipped with a pressure regulator and a flame arrester, as well as rubber hoses connected to it. Since the cylinder can roll easily when placed on its side, this rolling can damage the pressure regulator and flame arrester or cause the rubber hoses to come loose, resulting in the leakage of acetylene gas and thus leading to combustion and explosion.