1) Confirm that the pipeline and valve have been flushed before operation.
2) The operation of the valve drives the valve stem to rotate according to the input signal size of the actuator: the valve shuts off when the valve rotates 1/4 turn (90°) forward. Reverse 1/4 turn (90°) to open valve.
3) When the direction indicating arrow of the actuator is parallel to the pipeline, the valve is in open state; When the indicating arrow is perpendicular to the line, the valve is closed.