Which outcome occurs when a proportional control valve in a high-pressure hydraulic system experiences excessive internal leakage?

💡 Explanation

When internal leakage becomes excessive, the intended flow control degrades, because the valve cannot accurately direct the hydraulic fluid to the actuator, leading to lower speed and incorrect positioning. Therefore actuator speed decreases, rather than overpressure, overheating, or instability all of which require related, but different causal chains.

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