Higher air pressure (typically 4-8 bar) increases the actuator's output force/torque, enabling it to operate larger valves or overcome higher loads. Insufficient pressure may cause incomplete valve operation or sluggish movement.

Increased pressure reduces actuation time by providing faster air flow to the actuator. For example, raising pressure from 4 to 6 bar can improve response speed by 30-50%.

Optimal pressure ensures proper sealing force in the valve. Low pressure may lead to leakage, while excessive pressure can accelerate seal wear.

Higher pressure requires more compressed air consumption, increasing energy costs. Systems should operate at the minimum effective pressure.

Consistent pressure maintains reliable cycling performance. Pressure fluctuations may cause inconsistent valve positioning or hunting.

Excessive pressure accelerates wear on seals and mechanical components, while insufficient pressure causes incomplete seating and potential vibration damage.