Which phenomenon causes hydraulic actuator lockup when spool valve edges become severely worn?

💡 Explanation

When spool valve edges wear, the effective area for the fluid to act upon reduces, and pressure intensification from area reduction occurrs because of Pascal's Law, allowing fluid pressure to increase beyond acceptable safe limits locking up the actuator.. Therefore pressure intensification results, rather than stagnation, backflow, or creep; due to their dissimilar mechanism.

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