What characterizes an atmospheric tank?

An atmospheric tank is characterized primarily by its design to operate at atmospheric pressure only. This means that the pressure inside the tank does not exceed the pressure of the surrounding environment. Such tanks are typically used for the storage of liquids that do not require pressurization, allowing for safe and efficient containment without the additional complexities or risks associated with pressurized systems.

Understanding the importance of this characteristic helps to ensure proper safety measures and operational procedures when dealing with different types of storage tanks. For instance, tanks operating above atmospheric pressure would require stricter engineering controls and safety regulations to prevent potential hazards like ruptures or leaks.