Because liquefied petroleum gas is liquid in the tank, there is only a little (about 15%) gas on the liquid level. If you put the tank upside down, the liquid in the tank will flow out (through the liquid reducer). Liquid in the air will soon turn into gas, poisoning people; Where there is fire, there is fire.

In addition, there will be "gas residue" after long-term use of liquefied gas tanks. The so-called gas slag refers to the water and granular substances in liquefied gas after long-term use. People often discharge these residues by inverting gas tanks. These residues are easy to block the gas path when the tank is inverted, and water and liquid hydrocarbons will accelerate the aging of the sealing rubber parts, causing potential safety hazards, so they cannot be inverted.