工作 Operation:
When de-energized, the valve acts as a check valve, allowing flow from 1 to 2, while blocking flow from2 to 1.when energized the poppet lifts to open the 2 to 1 flow path.
失电时,①到②相当于单向阀,②到①关闭;得电时,②到①开启。
手控应急Operation of manual override option:
To override, twist counterclockwise 2 turns.
To return to normal operation, twist clockwise 2 turns.
逆时针旋转旋钮2圈，②到①开启;顺时针旋转旋钮2圈，返回常态