Water Distribution | Valve Modes of Operation

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  • Опубликовано: 10 апр 2018
  • Learn about Valve Modes of Operation in this excerpt from our Distribution System Exam Review.
    Manual Operation - 0:25
    Electric Operation - 0:43
    Hydraulic Operation - 1:05
    Pneumatic Operation - 1:23
    Operating Speed - 1:45
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