1 The operation must confirm that the pipe and valve have been washed.
2 Valve operation according to the actuator input signal size driven valve stem rotation complete: forward rotation 1/4 laps (90°), the valve shut off. When the reverse rotates 1/4 laps (90°), the valve opens.
3 When the actuator direction indicates that the arrow is parallel to the pipeline, the valve is open and the valve is closed when the arrow is perpendicular to the pipeline.
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