The LDV series electric actuator is used to control valves that rotate 0-90 degrees, such as butterfly valves, ball valves, dampers, plug valves, louver valves, etc. It uses AC220V, AC380V, AC110V, AC24V, and DC24V as the driving power supply, and uses 4-20mA current signals or 0-10V voltage signals as the control signals to make the valve move to the desired position and achieve its automatic control