When transporting a propane container, which part should not be exposed to the sun?

When transporting a propane container, it is essential to keep the entire container shaded from direct sunlight. This is because propane is stored under pressure as a liquid inside the container, and exposure to heat can cause the pressure within the container to rise. If the temperature increases significantly, it can lead to an unsafe situation where the pressure relief valve might activate to release gas, or in severe cases, risk failure of the container.

Protecting the container from sunlight helps maintain a safe operating temperature, ensuring that the pressure does not exceed safe limits during transport. This precaution minimizes the risk of incidents related to overpressure, leaks, or other unsafe conditions that can arise from heat exposure to the container.

Although certain parts of the container, like the pressure relief valve, are important to monitor, ensuring the entire container is shaded is a more comprehensive approach to safety during transport.