The ACT991M Modulating Actuator provides linear or proportional (equal percentage) control. It adjusts position based on control signal. Gap detection ensures actuator stroke closely matches actual valve stroke, independent of valve setting.
The ACTD995FB Feedback Actuator functions as a Gap Detection actuator with additional Feedback signal. Feedback signal can be compared to the control signal to ensure the valve is functioning correctly.
The ACTD995FS Fail Safe actuator is designed to protect the equipment and the system from damage, while enhancing overall efficiency. Fail safe function opens/closes the valve/actuator in the case of a power loss.