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Volanta Pump
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The Volanta Pump is a reciprocating pump for medium to very deep wells. It uses a retractable cylinder and a seal-less stainless steel piston. The stroke is adjustable to reduce the effort needed at deep installations. It is designed for heavy-duty use and the maximum recommended lift is 70 m. The Volanta Pump is not in the public domain and information can be asked from the manufacturer.
The Volanta Pump is fully corrosion resistant. It is rather difficult to install and it needs extensive masonry work. Maintenance is easy so that communities can care for the pumps.
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Description
The Volanta Pump is a reciprocating pump driven by a large flywheel. A crank and a connecting rod convert the rotary motion into a reciprocating action, which is transmitted to the plunger via stainless steel pump rods. The crankshaft and the flywheel run on ball bearings mounted on a plate that can be fixed to a steel or concrete pedestal. The cylinder is of glass fibre reinforced plastic with a close-fitting seal-less stainless steel plunger. The complete cylinder can be lifted from the well by the threaded pump rods, without removing the PVC-U rising main.
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Technical data
Recommended depths: 20 - 70 m,
Cylinder diameter: 50.0 mm,
Maximum Stroke: 400 mm,
Approx. discharge (75 watt input):
at 20 m head: 1.0 m³/hour,
at 40 m head: 0.5 m³/hour,
at 60 m head: 0.3 m³/hour,
at 80 m head: 0.2 m³/hour,
Pumping lift: 10 - 80 m,
Population served: - 300 people,
Households: 30 - 50 households,
Water cons.: 15 - 20 l/per capita,
Type of well: borehole.
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Material
Pump stand & flywheel are made of painted Mild Steel, the rising main consists of PVC-U pipes, the cylinder is made of glass fibre reinforced epoxy resin, plunger & the pump rods are of Stainless Steel and the valves of rubber. The pump is corrosion resistant.
Local manufacturing
The Volanta Pump is a protected product and is not intended for local manufacturing. However, there are countries where pumps are assembled and installed locally.
Installation
The installation of the Volanta Pump is rather difficult but does not need any lifting equipment. However, extensive masonry work is required and skilled installation crews are important.
Maintenance
This pump has a good “Community Management Potential”. Simple tools are needed to pull out the pumping element, including pump rod and foot valve. The seal-less piston means that no regular replacement of worn rubber seals is required.
Remarks
Some users find it difficult to start the pump. Small children have to stay away from this pump, because the area of the rotating flywheel can be a dangerous playground.
Price (approx): USD ……..
Supplier: Jansen Venneboer (NL),
Distribution: Mainly in West African countries.
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