Submersible Borehole Pumps in Zimbabwe

Nakiso Borehole Drilling uses Submersible Borehole Pumps of high quality, which are efficient and readily available at competitive prices.

A key component of most Boreholes, the submersible pump is used to push water up from the underground aquifers. With different pumps available, you can find the one that best meets your needs. 

Once you have chosen your pump, our team can provide a reliable installation service. To review Nakiso Borehole Drilling’s options, please give us a call.

What Is A Submersible Borehole Pumps?

Submersible borehole pumps are a type of submersible pump. They are centrifugal pumps driven by a submersible motor. As they usually draw in the fluid directly without a suction line, they must constantly be submerged in the fluid handled.

Submersible borehole pumps are designed as single-stage or multistage pumps which are rigidly coupled to the submersible motor. The motor can be arranged on top or underneath the pump, depending on the application.

They are employed as submersible borehole pumps for use in tank farms and as cavern pumps, for example. Their most common application is that of a borehole pump. Borehole pumps are more cost-efficient than deep-well turbine pumps, especially for large installation depths, as their rising mains have a simpler design.

To meet the typical conditions of a borehole, submersible borehole pumps are designed with a small diameter and a large axial length.

The motor, which is usually installed underneath the hydraulic stages, is a water or oil filled squirrel-cage motor (e. g. submersible motor), which is sealed off from the pump by a mechanical seal or another similar shaft seal. A suction strainer is fitted between the pump and the motor.

As the pump set is inaccessible during operation it must be entirely maintenance-free. Particular attention must be paid to the bearings absorbing radial and axial forces. The plain bearings, which are lubricated by the fluid handled or the motor fill, are commonly made of carbon, bronze, synthetic resin-impregnated hard fabric, ceramic or hard metal.
Submersible Borehole Pumps
 Submersible Borehole Pumps
Depending on the requirements, the pump casing, impellers and diffusers are made of cast iron, bronze, aluminium multi-alloy bronze, chrome-nickel steel or plastic.

A check valve (see Valve) is fitted at the very top of the pump set. The fluid handled (see Flow rate) is guided through this valve to the riser, from which the entire pump set is suspended.

The power cable is routed out of the motor through a cable gland and up along the outside of the pump and inside the riser to the top.

The principal applications of submersible borehole pumps are irrigation, maintenance of groundwater levels in open-cast and underground mining or construction pits, and pumping tasks in water-supply wells and in the offshore, geothermal energy or deep-sea mining sectors.

The pump sets have to be matched to each application, especially when the fluid to be handled contains sand and contaminants.

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Five Facts About Borehole Drilling That You Need To Take Note Of:
1. Know Your Borehole Casings:The Preferred Borehole Casing In Zimbabwe Is Class 9 and 10 (Pressure Classes.)This is because Class 9 and Class 10 Casings are more collapse resistant. The strength of a Casing is often described as collapse resistance.

2. Borehole Drilling Depth: The exact depth, of where the water is located, cannot be established by the drilling contractor nor the Water Surveyor (Borehole Siter).

3. The Is No 100% Guarantee On Water: It is important to note that it is never a 100% guarantee that any hole will yield water, the amount and water quality can also not be guaranteed by the drilling contractor and water surveyor.

4. Borehole Siting or Water Surveying Is Important: Making use of a hydrologist or traditional water diviner will increase your chances of having a successful borehole that will yield a sufficient amount of water.

5. Know The Risks: The risk of the borehole drilling lies with the property owner. The client will still be liable for the drilling costs irrespective of a borehole yielding water or not.

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Business Offices: 65 Churchill Avenue, Alexandra Park, Harare North, Zimbabwe.

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Office Numbers: +263 867 71 88844

Sales: +263 78 860 8009
Operations: +263 78 860 8005
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Nakiso Borehole Drilling - The Best Borehole Drilling Company in Zimbabwe!

Nakiso Borehole Drilling has experience and knowledgeable workforce to work on any type of installation. From solar powered, electrical and manual pump installation, we do it all under one roof. Nakiso Borehole Drilling covers borehole siting, drilling and installation of pumps.