What does the ball and seat stack height indicate?

The ball and seat stack height is an important measurement that indicates the suitability for reuse of the ball and seat assembly in a valve system. This height is critical because it helps ensure the proper alignment and function of the ball and seat when they come together to form a seal. If the stack height is not within an acceptable range, it may suggest that the components have worn down or that the configuration has been altered, thereby affecting their ability to create a proper seal.

Maintaining the correct stack height ensures that the ball and seat can re-engage effectively after the valve has been closed, which is essential for the optimal performance of the valve over time. Proper evaluation of this height can help in determining if the components need to be replaced or can safely be reused, thereby influencing maintenance decisions.