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Vergnet Hydropump HPV 60 / HPV 100
The Hydropump HPV60 & HPV 100 are operated by foot with a pedal. The piston movement is hydraulically transmitted via a flexible hose to a rubber diaphragm down in the pumping element. It is designed for heavy-duty use, serving communities of 300 persons. The maximum recommended lift is 60 m. The Vergnet pumps are fully corrosion resistant and installation of the pump is easy. Maintenance requirements are simple; above ground components allow interventions by the village caretaker, but below ground components are difficult to repair. The Hydropump is not in the public domain. For specific information, it is necessary to contact the manufacturer.

Description
The Hydropump has unconventional design features. The pump is operated by foot with a pedal. The displacement of the piston located at ground level is hydraulically transmitted to a rubber diaphragm down in a stainless steel cylinder. The expansion and the contraction of the diaphragm deliver the water to the surface. The top cylinder is connected to the pumping element on the bottom, via a flexible hose.

Technical data
Cylinder diameter:     not applicable,
Maximum Stroke:       200 mm,
Approx. discharge (75 watt input):
at 10 m head:            1.0 m³/hour,
at 15 m head:             0.9 m³/hour,
at 20 m head:             0.75 m³/hour,
at 30 m head:             0.65 m³/hour,
Pumping lift:               10 - 60 m,
Population served:     - 300 people,
Households:               30 – 50 households,
Water consumption:   15 - 20 l/per capita,
Type of well:               mainly borehole.

Material
Pump stand is made of galvanized steel painted, foot pedal of mild steel, pipes of flexible LDPE hose, top and bottom cylinder of stainless steel, pumping element of a rubber diaphragm and valves of brass. This pump is corrosion resistant.

Local manufacturing
The Hydropump HPV60/100 is a protected product and is not intended for local manufacturing. Only the steel parts of the pump stand would have a potential for local manufacturing.

Installation
The installation of the Hydropump is very simple and does not need any lifting equipment.

Maintenance
This pump has a good “Community Management Potential”. The above ground components allow interventions by the village caretaker, but below ground components are difficult to repair. The diaphragm requires frequent cleaning.

Remarks
The replacement of a diaphragm is expensive. The pump requires a considerable effort to operate. Although full body weight can be applied to the pedal, children and small users find it sometimes hard to operate the pump. If the yield of the borehole allows and the water demand is high, 2 pumps in one borehole can be installed.
Price (approx):      USD …….
Distribution:           > 100,000 pumps, mainly in West Africa,
Supplier:                Vergnet SA, France.

Guide for specifying Options:
No Guide for specifying options is available. It will be necessary to contact the manufacturer or the local representative to define the pump specification.
To adapt the pumps so that they could be readily accepted by local populations, Vergnet built into his hydraulic transmission principle the various pumping interfaces villagers were accustomed to. Therefore, Vergnet pumps have several above-ground appearances. They may be foot pumps, (the traditional Vergnet Hydropump), wheel pumps (the Hydrovolanta), or hand pumps (Hydro India).