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A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action, typically converted from electrical energy into hydraulic energy. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps.Pumps operate by some mechanism (typically reciprocating or rotary), and consume energy to perform mechanical work moving the fluid. Pumps operate via many energy sources, including manual operation, electricity, engines, or wind power, and come in many sizes, from microscopic for use in medical applications, to large industrial pumps.
Mechanical pumps serve in a wide range of applications such as pumping water from wells, aquarium filtering, pond filtering and aeration, in the car industry for water-cooling and fuel injection, in the energy industry for pumping oil and natural gas or for operating cooling towers and other components of heating, ventilation and air conditioning systems. In the medical industry, pumps are used for biochemical processes in developing and manufacturing medicine, and as artificial replacements for body parts, in particular the artificial heart and penile prosthesis.
When a casing contains only one revolving impeller, it is called a single-stage pump. When a casing contains two or more revolving impellers, it is called a double- or multi-stage pump.
In biology, many different types of chemical and biomechanical pumps have evolved; biomimicry is sometimes used in developing new types of mechanical pumps.

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  1. S

    we go Dino life off 20 Gauge Tactical pump Shotgun bbS/4 Buck blasts milk carton of boulder

    well that was launch pretty dARN far LOL
  2. S

    Tactical 20 Gauge Shotgun pump 20 feet BBS/BUCK into cans & wood block pattern

    well shot low the 2 nd shot i see shell got a little stuck
  3. S

    Tactical 20 Gauge Shotgun pump water jug on fence post bbs/4 buck shot test

    well that was better penitraion
  4. S

    FedArm FRX Tactical pump Shotgun 20 gauge first shots pattern test

    i buffed and sanded out the inside of the action its a lot smother now
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