A specialized type of flow control mechanism allows for diverting or mixing fluids across three ports. Operating with a sliding gate, it either isolates or permits flow between the central port and either of the two side ports. An example application involves directing flow from a single source to one of two different destinations, or conversely, combining flow from two sources into a single output.
Its significance lies in its ability to simplify piping systems, reducing the number of individual components and connections required for flow diversion or mixing. This simplification leads to lower installation costs, reduced potential leak points, and easier maintenance. Historically, such multi-port control has been achieved using multiple standard valves, but this integrated design offers a more compact and efficient solution for specific applications.