What characteristic describes a globe valve?

A globe valve is characterized by a disk that moves vertically relative to the seat, allowing for precise flow control. This design features a spherical body and is specifically structured to control the flow of fluids. When the valve is closed, the disk seals against the seat, and when it is open, the disk moves upward, allowing fluid to pass. This vertical motion is essential for the valve's operation, helping to regulate flow effectively.

The other characteristics, while they may apply to different types of valves, do not accurately describe the globe valve. For instance, globe valves are not typically designed for frequent operation; rather, they excel in throttling applications where precise flow control is required. Additionally, they do not offer minimal resistance to flow when closed; in fact, they tend to create greater pressure drops compared to other valve types, such as gate valves. Lastly, while globe valves can withstand high pressures, their main function is not solely to absorb pressure but to control flow. Thus, the vertical movement of the disk is the defining characteristic of a globe valve.