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  2. Grundfos - Wikipedia

    en.wikipedia.org/wiki/Grundfos

    In the water supply and wastewater sector, Grundfos offers pumps for irrigation, green houses, and for municipal, private and industrial water supply as well as for sewage applications. In the fire systems sector, the products are compliant with the popular standards of: FM, NFPA20, LPCB, VdS, EN12845 for fire sprinkler systems , among many ...

  3. 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 ...

  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. Tube well - Wikipedia

    en.wikipedia.org/wiki/Tube_well

    A tube well is a type of water well in which a long, 100–200 millimetres (3.9–7.9 in)-wide, stainless steel tube or pipe is bored underground. The lower end is fitted with a strainer, and a pump lifts water for irrigation. The required depth of the well depends on the depth of the water table.

  6. DSV Alvin - Wikipedia

    en.wikipedia.org/wiki/DSV_Alvin

    The submersible features two robotic arms and can be fitted with mission-specific sampling and experimental gear. The plug hatch of the vessel is 0.48 m (1 ft 7 in) in diameter and somewhat thicker than the 2-inch (51 mm) thick titanium sphere pressure hull; [2] it is held in place by the pressure of the water above it.

  7. Rescue of Roger Mallinson and Roger Chapman - Wikipedia

    en.wikipedia.org/wiki/Rescue_of_Roger_Mallinson...

    The crew heard the sound of water entering the aft compartment as Pisces III became inverted and began to sink back to the seabed. The aft sphere was fully flooded with over a tonne of water. [2] [5] [12] At 175 ft (53 m) the submersible jolted to a stop – held at the maximum length of the nylon towline.