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Ndume Turbo Water Pump


The NDUME TURBO WATER PUMP provides a simple, cheap and reliable method of pumping water from streams and rivers.  It utilizes the water as the sole driving force.  NO FUEL IS REQUIRED.  All that is needed is a flow of approximately 2 cusec or more and a fall of 2 - 3 feet (2 cusec - a reasonably fast flowing stream or river of not less that 8" deep)

TURBO WATER PUMP

As an example of what the pump can achieve, a flow of 3 cusec and a fall of 3 feet will in 24 hours provide approximately 15,700 gallons of water to a height of 10 feet, or 3,500 gallons of water to 150ft.  More drive water means more water pumped, i.e. 5 cusec will provide 21,600 gallons and 6,400 gallons at the above mentioned heights or even 3,500 gallons to a height of 300 feet.

The pump and turbine are of very sturdy construction needing virtually no maintenance.  Periodic greasing of the crankshaft and removal of debris from the turbine housing screen is all that is required.

When after a long period of usage, it becomes necessary to renew the piston leathers, the whole pump and turbine unit can be removed from the turbine by unscrewing only two units.  Thus the turbine housing can be left in situ without disturbing the dam or other installation arrangements.

The pump can be supplied with either 2.5 " or 3"  diameter pump cylinder, the smaller diameter being preferred when pumping against a high head, or where the volume of drive water is restricted to 2 - 3 cusec.


EVEN IN FLOOD CONDITION, THE TURBO PUMP WILL STILL OPERATE

On sites where flooding is known to occur, the Turbo pump should be placed on the inside of a corner away from the main flow or preferably in a diversion channel as shown in figure 3.

Excess water will not damage the Turbo pump and it will continue to operate.  However, in areas where heavy debris such as boulders and trees are brought downstream by floods, the Turbo Pump should be installed in a diversion to prevent damage.


The more fall that can be obtained through the turbine, the better - up to recommendable limit of 3 feet (915mm).  Therefore, a site with high banks upstream should be chosen to enable the dam to be built as high as possible.  The site should be checked for flow and possible fall and, from the tables, check that the performance required is obtainable.

Once the site is chosen, it is necessary to prepare the site for installation of the turbine. In some cases, weirs and dams may already exist and these are ideal sites. Figure 4.

Multiple Turbo Pumps may be installed as shown in Figure 5 and Figure 6 to increase output volume.

   

  Conservation Tillage equipment, East Africa, Kenya, Tanzania

  NDUME LIMITED
Phone:      020-2186668/9, 2186671/2
Address:   PO Box 62, 20116 Gilgil, Kenya
Email:        info@ndumekenya.com
Website:   www.ndumekenya.com
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