The visual flow control device K 84465 is an eight-position inspection element used in the ZV40/48 engine to allow operators to visually verify fluid movement, direction, and condition within the system. Designed for clarity, durability, and resistance to pressure and temperature fluctuations, this component enhances situational awareness during operation and maintenance. Its multi-position configuration enables precise monitoring of flow changes, making it easier to detect irregularities, contamination, or flow interruptions. By providing immediate visual feedback, K 84465 significantly improves reliability, safety, and diagnostic speed in complex engine environments.