Water pumps are electrically-powered appliances used for moving water from their place of deposit to a place of storage
For example, they are used for moving water from the bottom of a well and up to the storage tank of the building. Although the water pump does not run continuously, it does consume power when it activates and deactivates.
Types of water pumps
There are two general types of water pumps: centrifugal pumps and positive displacement pumps.
A. Centrifugal Water Pump
A centrifugal water pump is one that uses a rotating impeller to move water into the pump and pressurize the discharge flow. The standard, trash, and submersible models are three different types also within this category
Out of the three, the submersible pump is the most common. It is designed for pumping clean water into the house and pumping dirty water out. This is particularly valuable when draining and clearing water in the garden or emptying blockages in the kitchen or bathroom. The submersible pump can be used on different occasions including flood water drainage, garden irrigation and creating waterfalls and fountains.
B. Positive Displacement Water Pumps
These are pumps that deliver a fixed amount of water flow through mechanical contraction. They are best for industries that manage high viscosity (thickness of fluids) or where sensitive solids are also present. They are highly recommended for low flow and high-pressure liquids such as sewage.
What to consider when buying a Water Pump
1.Its material composition: When buying water pumps, one needs to find out what material they are made of. For example, water-pumps that are not weather-resistant may be unsuitable for some installations such as on open ground surfaces or outdoors
2.Its Motor Type: Whether it is gas, diesel, hydraulic or manual as these determine the efficiency and noise level
3.Its head discharge: The total head discharge or how powerful the pump can be is also important to know as they help in deciding how suitable it would be for your project
4.Its Power requirements: It is important to know the flow rate and horsepower of the pump as this can aid in deciding what mode of power supply to use e.g. generator, solar power etc
In sum ,water pumps vary greatly . An average water pump’s wattage can vary between 250 watts to 1,100 watts. With a proper energy assessment one can get firm details of the power requirements of the water pump one wants to use.
Alternatively, a consultation with a reputable Solar energy provider can assist in getting this information with ease.
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A Solar Home System can power water pumps efficiently An average home system that powers a water pump ranges from 2kw to 5kw.
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