Valve Actuator

Yes, slowing the command slew rate may work - provided the actuator motor response is reasonable, ie. it responds to every few % change in signal, rather than a 10 or 20% change in signal.

You have given a given a 'general discription' of an actuator (any actuator) and then asked a spsific question about regulation (by reducing the electrical input) to the actuators pilot valve. As such btrueblood has given you the answer.

If you ask whole question generally (for any valva actuator with any actuation type (el. air, hydraulic and others), the answer is that it is always possible to regulate the closing time by adjusting the closing timee by throtteling or reduce power input over time. But note: within the given physical/mechanical limits of the specific equipment.

A common fault when spcifying actuators is to overrate the neceessary closing time, resulting in to large and costly actuators, and thus possibly give surgeing problems.

This is the reason one should always specify and analyse necessary closing and opening time for any valve actuator, need for control feedback and steering signal and max and min closing.