Ask for help about the structure and principle of the pull-off valve
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The structure and principle of emergency cut-off and pull-off valves
The pull-off valve means that when the pipeline is stressed, the pipe fitting breaks in the middle and both ends are automatically closed to prevent liquid leakage. For example, when a car is refueling at a gas station with a slope (this is not often the case, just an example), the car accidentally slides down the slope. If the pull-off valve is not used, haha, the car pulls the refueling machine and runs away~~:lol The emergency shut-off valve is a quick-closing valve. The structure is not much different from that of a control valve, the main thing is the speed of the actuator. :D
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