Which risk increases when a proportional valve controlling a hydraulic actuator oscillates rapidly around its null point?

💡 Explanation

When a proportional valve oscillates around null, poppet valve slamming and small spool movement occurs because of amplified electrical valve noise in the PWM control, leading to erosive wear on valve and cylinder internal regions. Therefore, increased valve spool wear results, rather than buckling, aeration, or thermal sensitivity that require high loads, vacuum, or extreme changes in operation parameter values.

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