The reasons for the leakage of liquefied petroleum gas cylinders are mainly the following points:
1 The sealing ring of the front end of the valve is aging, cracking, damage and so on;
2 The connection between the valve and the cylinder valves is not tight, the outlet thread of the bottle valve is damaged, or the connection does not match;
3 The diaphragm of the decompression valve is damaged;
4 The gas pipeline is aging, cracking or damage;
5 The control valve has leakage phenomenon.