Which risk increases when a pneumatic control valve's exhaust port becomes significantly restricted?

💡 Explanation

When exhaust becomes restricted, the evacuating air experiences increased backpressure on cylinder which opposes force development because force is a function of cylinder cross section and delta-p, leading the actuator stall. Therefore actuator stalling increases, rather than supply overpressure, leakage/venturi effects, or thermal runaway which rely on alternative valve mechanisms.

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