Which type of valve uses cage-style trim for guiding and retention?

The correct answer highlights the balanced plug valve, which features cage-style trim designed to provide precise guidance and retention of the valve plug. This design allows for consistent performance and effective flow control, as the cage helps to stabilize the plug within the valve body, minimizing wear and enhancing the valve's ability to handle varying pressure conditions.

Cage-style trim is particularly important in applications where control accuracy is critical, as it ensures that the plug operates smoothly and seals appropriately against the seat. This construction not only improves the valve's regulatory capabilities but also prolongs its lifespan by reducing friction and wear during operation.

While single and double seated balance valves may have different designs and configurations, the balanced plug specifically utilizes the cage-style trim system to achieve its functionality. Therefore, this distinction is crucial in understanding what makes the balanced plug valve unique in its capability to manage flow efficiently and reliably.