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  2. Hand pump - Wikipedia

    en.wikipedia.org/wiki/Hand_pump

    The complexity of the pumps is a fundamental problem for all programs of this kind, as well as the quality of the pumps given the heavy demands of a village. [20] A 1994 study, also Bank funded, of the endurance of hand pumps in Africa showed that only 41 to 51 percent of hand pumps were still functioning. [ 20 ]

  3. Pumpjack - Wikipedia

    en.wikipedia.org/wiki/Pumpjack

    A pumpjack is the overground drive for a reciprocating piston pump in an oil well. [1] It is used to mechanically lift liquid out of the well if there is not enough bottom hole pressure for the liquid to flow all the way to the surface. The arrangement is often used for onshore wells. Pumpjacks are common in oil-rich areas.

  4. Centrifugal pump - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_pump

    Also, the dimensions of the separating chamber are relatively large. For these reasons this solution is only adopted for small pumps, e.g. garden pumps. More frequently used types of self-priming pumps are side-channel and water-ring pumps. Another type of self-priming pump is a centrifugal pump with two casing chambers and an open impeller.

  5. Water well pump - Wikipedia

    en.wikipedia.org/wiki/Water_well_pump

    These pumps, often submersible and powered by electricity, can access water reserves located much deeper than shallow wells, ensuring a consistent supply even during periods of drought. They include different kinds of pumps, most of them submersible pumps: Hand pump, manually operated; Injector, a jet-driven pump; Mechanical or rotary lobe pump ...

  6. Pipe-laying ship - Wikipedia

    en.wikipedia.org/wiki/Pipe-laying_ship

    Pipelaying ships make use of dynamic positioning systems or anchor spreads to maintain the correct position and speed while laying pipe. Recent advances have been made, with pipe being laid in water depths of more than 2,500 metres (8,200 ft). The term "pipelaying vessel" or "pipelayer" refers to all vessels capable of laying pipe on the ocean ...

  7. Dewatering - Wikipedia

    en.wikipedia.org/wiki/Dewatering

    Pumps being used to dewater a spillway at Baldhill Dam. Dewatering / d iː ˈ w ɔː t ər ɪ ŋ / is the removal of water from a location. This may be done by wet classification, centrifugation, filtration, or similar solid-liquid separation processes, such as removal of residual liquid from a filter cake by a filter press as part of various industrial processes.

  8. Snubbing - Wikipedia

    en.wikipedia.org/wiki/Snubbing

    PUMP TRUCK – The Engine of the truck is used to power the pump (which is a series of valves mounted behind the cab). -----> The Pump truck has a trailer which is the MUD TANK SNUBBING BASKET – Once again the trucks engine is used to power the unit's hydraulics. The Basket lies on the bed of the truck behind the cab.

  9. Water pumping - Wikipedia

    en.wikipedia.org/wiki/Water_pumping

    A spiral pump, sometimes called a Wirz pump or incorrectly Wirtz pump, is a low lift pump which is composed of a long piece of metal plating, which is wound into a coil and sealed at the top and back extremities so as to resemble a cylinder. The outer cavity serves as the inlet, while the inner (partial) tube serves as the outlet.

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