Most valves in wastewater systems are named after what component?

In wastewater systems, valves are primarily named after their internal closing element because this component is crucial in determining the valve's function and design. The internal closing element is responsible for regulating the flow of wastewater by either opening or closing the passageway within the valve. Different types of valves may have various mechanisms for their closing elements, such as gates, discs, or balls. This naming convention reflects how the valve operates and its intended purpose in managing fluid flow in the system.

The external casing, control mechanism, and output port are also important aspects of valve design but do not define them as precisely as the internal closing element does. The external casing is more about the protective shell that houses the internal components, the control mechanism refers to how the valve is operated (manually or automatically), and the output port is simply where the fluid exits the valve. Therefore, the focus on the internal closing element captures the essence of what the valve is fundamentally designed to do.