Selecting a Water Pump :
Water Issue has been troublesome in India. Be it, Rural or Urban Area. The water issue has been rising and it is practically not possible for the governing bodies to solve the water problem by itself. It needs the aid of common people.
Since the demand for water is increasing at an exponential rate. So the quantity and pressure of water are decreasing. To get enough water supply you need to install a domestic water pump in India.
The water pump is now a necessity that has ventured into almost every home of the city or even village. Its fundamental task is to pump water at a comparatively higher pressure and speed as compared to normal flow through Municipal Corporation pipe connections.
These pumps eradicate the problem of water scarcity in India.
Water Pumps are basically divided into Domestic Water Pumps and Agricultural Water Pumps.
Domestic Water pumps are essentially used in homes for water requirements. They are further divided into a few kinds –
#1. Self-Prime Regenerative Pumps
These pumps are suitable for handling clear cold fresh water, free from abrasive particles and chemically aggressive substances. Suitable for domestic water supply, lawn sprinklers, gardens, etc. These pumps due to their self-priming capability can remove air and hence is suitable to suck water from pipelines and, therefore, does not require a foot valve.
A regenerative pump is also called a turbine, or peripheral, pump. The impeller has vanes on both sides of the rim that rotate in a ring-like channel in the pumpâ€™s casing. The fluid does not discharge freely from the tip of the impeller but is recirculated back to a lower point on the impeller diameter. This recirculation, or regeneration, increases the head developed.
#2. Centrifugal Pumps
Centrifugal pumps are a sub-class of dynamic axisymmetric work-absorbing turbomachinery. Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits.
Common uses include water, sewage, petroleum and petrochemical pumping; a centrifugal is commonly used to implement a vaccum cleaner. The reverse function of the centrifugal pump is a water turbine converting potential energy of water pressure into mechanical rotational energy.
#3. Submersible Pump
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A Submersible Pump is a device with a sealed motor that is completely submerged in water bodies, especially open wells and bore wells. They are an efficient and wiser choice since they do not require any priming as they are already submerged in water. They are further divided into two types:
- Open Well Submersible Pumps ( Water Cooled/Oil Cooled) (For Open-Well Applications)
- Tube Well submersible Pumps ( Water Cooled/Oil Cooled) (For Bore well applications)
Electric submersible pumps are multistage centrifugal pumps operating in a vertical position. Liquids, accelerated by the impeller, lose their kinetic energy in the diffuser where a conversion of kinetic to pressure energy takes place. This is the main operational mechanism of radial and mixed flow pumps.
#4. Bore Well Compressor Pumps
Bore Well Compressor Pumps are specially designed for drawing water from deep bore wells with specific diameters. Air pressure is used in this machine to lift the water from deep bores.
These pumps are best suited for comparatively less yield bore wells, having a depth of up to 600 ft. Compressor Pumps can be used in bore wells containing muddy water, where tube well pumps are not suitable. There are two types of compressor pumps, Monobloc, and belt-driven types. Discharge of the compressor pumps depends on the yield of the bore well.
#5. Shallow Well Pumps
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Shallow Well Pumps are a very novel pick for shallow wells. The reason is that they have great suction power and are a good choice for rural areas.
Shallow Well Pumps having suction head of up to 8 meters and hence can be chosen as an alternative if suction head is greater than 6 meters which is the capacity for normal self-prime pumps.
Agricultural Water Pumps are of two different kinds –
- Centrifugal Monoblock Pumps
- Submersible Pumps.
So you should get acquainted with some of the basic technalites of the water pump.
We below enlist some of the factors which should be considered while selecting a domestic water pump:
- Wattage( Power):
Typically, one should require 0.25 hp or 0.5 hp at home. This is sufficient for domestic use, no matter which type of water pump you wish for. If you install higher wattage rating pump then definitely the electricity bill at your home is going to increase manifold.
- Distance from the source:
About, 25-30 meters of distance from the overhead tank is required for generating head pressure to fill the overhead tank.
- Pressure Required
You should keep in mind the pressure details required for your use. We enlist pressure requirements as follows:
- Cottage : 10-20 LPM
- Small House:20-30 LPM
- Medium House: 30 -50 LPM
- Big House:50- 100 LPM
You should buy a pump that produces least noise possible in order to reduce noise pollution.
Now since you have relevant information about selecting a water pump go and select the pump that is most suitable for you.