Deepwell handpumps For further information visit: http://wedc-knowledge.lboro.ac.uk/ There are several different types of deep well pump available, such as the Afridev pump (pictured left) and the Bush Pump developed in Zimbabwe based on a 1933 design. The India Mark II (pictured right) is used only in India. UNICEF introduced this pump there in 1976, prompted by a survey that 75% of the local pumps were broken. The India Mark III was developed later and was easier to maintain. These pumps are now used world-wide. Consallen handpumps (pictured left) have been made since 1975. They pump down to a depth of 60 metres. The Volanta pump (pictured right) is easily recognisable by its large flywheel. The pumping action is still upwards and downwards, but this is made easier for deep wells (up to 80 metres deep) as the turning of the wheel moves the pump rods up and down. The flywheel takes a while to get going and to stop, resulting in the continuous flow of water for some moments after pumping. This may mean that water is wasted if only one container is to be filled. The Volanta can be motorised if necessary. Developing knowledge and capacity in water and sanitation POSTER 49
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Deepwell handpumps
For further information visit: http://wedc-knowledge.lboro.ac.uk/
There are several different types of deep well pump available, such as the Afridev pump (pictured left) and the Bush Pump developed in Zimbabwe based on a 1933 design.
The India Mark II (pictured right) is used only in India. UNICEF introduced this pump there in 1976, prompted by a survey that 75% of the local pumps were broken. The India Mark III was developed later and was easier to maintain. These pumps are now used world-wide.
Consallen handpumps (pictured left) have been made since 1975. They pump down to a depth of 60 metres.
The Volanta pump (pictured right) is easily recognisable by its large flywheel. The pumping action is still upwards and downwards, but this is made easier for deep wells (up to 80 metres deep) as the turning of the wheel moves the pump rods up and down. The flywheel takes a while to get going and to stop, resulting in the continuous flow of water for some moments after pumping. This may mean that water is wasted if only one container is to be filled. The Volanta can be motorised if necessary.
Developing knowledge and capacityin water and sanitation
Poster 49
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