| 摘要 |
This invention relates to a filling device for preventing overflow of liquid-containing tanks during the filling thereof and includes a liquid inlet unit having a float controlled valve designed to close to prevent further flow of liquid into the tank when the liquid therein has reached a predetermined level and an air inlet unit having a float controlled valve which prevents venting of air from the tank when the liquid therein has reached a predetermined level, so that the air pressure in the tank would build up quickly to prevent introduction of additional liquid.
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