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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. G

    Boiler pump speed wrong?

    I had my boiler pump replaced yesterday as the other one had stopped working. The guy said he had one on the van that would fit and the boiler started working again. Now I'm finding the radiators that are furthest away from the boiler arent getting quite as hot as they were before. The pump he...
  2. P

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  3. M

    Pump noise and sometimes pulsing

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  4. N

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  5. D

    Using HW Circuit for Pump Overrun?

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  6. K

    UFH has its own pump that keeps running round the clock!

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  7. stings27

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  8. T

    Cause of intermittent noise from pump and zone valves

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  9. CorgiDirect

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  10. M

    Trial removal of second CH pump

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  11. S

    Shower Pump Starts on its own intermittently

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  12. H

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  13. E

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  14. M

    Cold feed blockage

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  15. oisinl

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  16. S

    Balancing radiators on Heat Pump System

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  17. B

    New Grundfos UPS3 15-50/65 130 Circulator pump fitted no heating and hot water - FD Fault code

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  18. F

    water pump issue?

    hi all, the central heating water pump at my parents house seems faulty. it makes unusual noises like gurgling, groaning noises that we never heard before. further to this after just 2 mins in the pump gets very hot and the boiler switches off. the pump itself was originally installed in 1986...
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