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2. File:Submersible-pump System.svg - Wikipedia

   en.wikipedia.org/wiki/File:Submersible-pump...

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3. Float switch - Wikipedia

   en.wikipedia.org/wiki/Float_switch

   A pedestal sump pump with a float switch. A float switch is a type of level sensor, a device used to detect the level of liquid within a tank. The switch may be used to control a pump, as an indicator, an alarm, or to control other devices. One type of float switch uses a mercury switch inside a hinged float.

4. Submersible pump - Wikipedia

   en.wikipedia.org/wiki/Submersible_pump

   A 0.75 HP bore-well submersible pump which had been used to pump groundwater One style of submersible pump for industrial use. Outlet pipe and electrical cable not connected. A submersible pump (or electric submersible pump (ESP) is a device which has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in ...

5. Gasoline pump - Wikipedia

   en.wikipedia.org/wiki/Gasoline_pump

   Most modern pumps have an automatic cut-off feature that stops the flow when the tank is full. This is done with an auxiliary sensing tube running from just inside the mouth of the nozzle to a Venturi pump in the pump handle. A mechanical valve in the pump handle detects a change of pressure and closes, preventing the flow of fuel. [28] [29]

6. Sewage pumping - Wikipedia

   en.wikipedia.org/wiki/Sewage_pumping

   KOS+ M openwell submersible pump. Small-scale sewage pumping is normally done by a submersible pump.. This became popular in the early 1960s, when a guide rail system was developed to lift the submersible pump out of the pump station for repair, and ended the dirty and sometimes dangerous task of sending people into the sewage or wet pit. [1]

7. Control valve - Wikipedia

   en.wikipedia.org/wiki/Control_valve

   An automatic control valve consists of three main parts in which each part exist in several types and designs: Valve actuator – which moves the valve's modulating element, such as ball or butterfly. Valve positioner – which ensures the valve has reached the desired degree of opening. This overcomes the problems of friction and wear.