Which valve type is easily adapted for multiport construction?

The correct choice is the plug valve because its design allows for straightforward modifications to create multiport configurations. Plug valves feature a cylindrical or tapered plug that can turn within the valve body to either block or allow flow. This design flexibility makes it relatively easy to add additional ports or modify inlet and outlet paths without compromising the valve's operational integrity.

In applications where multiple flow paths are needed, such as directing flow to different branches of a piping system, the adaptability of the plug valve is particularly beneficial. The simplicity of its mechanical construction and the ease with which it can be engineered for different configurations contribute to its suitability for multiport designs.

In contrast, gate valves and globe valves are typically designed for either on/off control (in the case of gate valves) or throttling (in the case of globe valves), making them less efficient for multiport adaptations. Check valves, which are primarily used to prevent backflow, do not lend themselves to multiport installations due to their specific function and flow directionality.