A shutoff valve is _______ a full-open valve.

A shutoff valve is different than a full-open valve because they serve distinct functions within a plumbing system. A shutoff valve is specifically designed to stop the flow of water in a pipeline, allowing for maintenance or repairs to be conducted without draining the entire system. It effectively isolates sections of plumbing to enable these processes safely and efficiently.

In contrast, a full-open valve is designed to allow maximum flow when fully opened, meaning it is commonly used in circumstances where fluid needs to flow freely through the system without restrictions. The goals of these two types of valves are thus fundamentally different: one focuses on control and isolation (the shutoff valve), while the other is geared toward ensuring unimpeded flow (the full-open valve). This distinction is critical for understanding their respective applications in plumbing systems.