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  2. Hand pump - Wikipedia

    en.wikipedia.org/wiki/Hand_pump

    The depth from which a hand pump will suck is limited by atmospheric pressure to an operating depth of less than 7 meters. [5] The height to which a hand pump will lift is governed by the ability of the pump and the operator to lift the weight in the delivery pipe.

  3. Thermic fluid heater - Wikipedia

    en.wikipedia.org/wiki/Thermic_fluid_heater

    A thermic fluid heater (TFH), [1] also known as a thermal oil heater, is a device used for indirect heat transfer through a thermic fluid. It heats the fluid to a desired temperature and then transfers that heat to various processes without any direct contact between the heating source and the product.

  4. Hydraulic machinery - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_machinery

    Disadvantages: The pump cannot be utilized for any other hydraulic function in an easy way and cooling can be a problem due to limited exchange of oil flow. High power closed loop systems generally must have a 'flush-valve' assembled in the circuit in order to exchange much more flow than the basic leakage flow from the pump and the motor, for ...

  5. Drum pump - Wikipedia

    en.wikipedia.org/wiki/Drum_pump

    Unlike a submersible pump with the motor submerged, a drum pump has a drive motor above the container. Electric and pneumatic motors are available. Electric and pneumatic motors are available. The motor is attached to the vertical shaft at the top of the tube outside the drum and the pumping element is located at the end of the shaft inside the ...

  6. Progressing cavity pump - Wikipedia

    en.wikipedia.org/wiki/Progressing_cavity_pump

    A progressing cavity pump is a type of positive displacement pump and is also known as a progressive cavity pump, progg cavity pump, eccentric screw pump or cavity pump.It transfers fluid by means of the progress, through the pump, of a sequence of small, fixed shape, discrete cavities, as its rotor is turned.

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