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The method and apparatus For the purpose of waste water pump station of the automatic circulation flow
The method and apparatus For the purpose of waste water pump station of the automatic circulation flow
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机译:用于废水泵站自动循环流量的方法和装置
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摘要
The invention concerns a method and a device for obtaining automatic circulation in waste water pump stations. On the pressure side the pump unit is provided with a valve (6) which during certain periods opens a connection between the pump and the pump station, thus obtaining a circulation in the latter. The valve (6) is opened and closed by a valve ball (9) which is controlled by the pump pressure. IMAGE
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