... manual tune valve 手动下降阀 manual operation valve 手动操纵阀 manual shutoff valve 手控断油开关 ...
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Valves with this option have a hand wheel mounted on top of the actuator for manual valve operation.
配置这种备选件的阀门在执行器顶部安装一个手轮用于手动阀门操作。
Valve shall be installed in accordance with manufacturer's written Installation and Operation Manual and approved submittals.
应该按照制造商书面安装和操作手册和经过认可的资料来安装阀门。
In addition, the invention further provides a detection method capable of detecting error reason of the pilot valve when the manual operation device for electric pilot valve breaks down.
另外，本发明还提供一种检测方法，该方法在具有上述手动操作装置的电动导向阀发生故障时，能检查导向阀的故障原因。
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