What term is used for a quick valve opening requiring minimal rotation?

The term that accurately describes a quick valve opening requiring minimal rotation is "quick opening." This terminology is commonly used in mechanical and plumbing contexts to refer to valves that are designed to open fully with only a small amount of rotational movement. Quick opening valves facilitate rapid flow control, allowing a prompt response to system demands or changes in pressure.

In valve design, a quick opening feature is particularly beneficial in applications where systems need to react swiftly, such as in emergency shut-off scenarios or when managing flow rates in variable conditions. This contrasts with other valve types that may require multiple turns to open or close fully, making them less efficient in situations where speed is essential. Understanding these concepts is crucial for selecting the appropriate valve type for various applications, ensuring optimal performance and safety in mechanical systems.