Why is DOT certification important?

Why is DOT certification important?

The large propane tanks that fuel your home appliances are not meant to be moved once they are installed. Because of this, these tanks can be made with thick metal to ensure maximum safety. On the other hand, smaller propane tanks, like 12 lb propane cylinders, are meant to be moved around. Not only do they need to be safe enough to be transported in ordinary vehicles, but they need to be light enough that you can move them from their storage space and into position on whatever they are powering. Because of this, the materials used to manufacture smaller propane tanks are much thinner. These tanks are not just smaller, they are more fragile.

This fragility could potentially turn portable propane cylinders into a hazard should an accident occur. To prevent injury from poorly manufactured tanks, the DOT requires certain conditions to be met while the tank is manufactured and before it is allowed to be refilled. These requirements, and the tests to check for them, are designed to ensure that the cylinder’s walls are capable of withstanding a certain amount of internal and external pressure without weakening.

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