How should propane cylinders be transported in vehicles?

Propane cylinders should be transported upright and secured to ensure safety and prevent accidents. When cylinders are in an upright position, the safety valves remain at the top and are less likely to become damaged or malfunction. Additionally, transporting them in this manner helps to prevent the release of propane, which could occur if they were laid flat or improperly secured. Securing the cylinders minimizes the risk of movement during transport, protecting both the cylinder and preventing any potential leaks.

The upright position is also essential for maintaining the integrity of the cylinder's pressure and safety mechanisms. It ensures that the cylinder is stable and reduces the likelihood of it tipping over during transport, which could lead to dangerous situations.

Transporting cylinders flat or horizontally does not provide the same level of safety or stability, and leaving them opened and accessible increases the risk of accidental release of propane, which can be hazardous.