Difference between revisions of "Nira AF-85 pump"
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Revision as of 03:22, 18 October 2012
The Nira AF-85 Pump is a direct action pump for Low Lift Wells. It uses a buoyant pump rod that helps to reduce the forces on the handle. It is designed for heavy-duty use, serving communities of 300 persons. The maximum recommended lift is 15 m. The Nira AF-85 is fully corrosion resistant. It is easy to install and has excellent potential for community-based maintenance. The Nira AF85 pump is not in the public domain. For specifications and information, it is necessary to contact the manufacturer.
The Nira AF-85 Direct Action Handpump is based on a buoyant pump rod that is directly articulated by the user, discharging water at the up- & down stroke. The Nira AF-85 Pump is completely corrosion resistant.
Suitable conditions
This pump is like most of the “Direct Action Pumps” (DAP) limited to pumping lifts of a maximum of 15 m. It is not recommended, however, to go deeper than 12 m.
Distribution: > 10,000 in Tanzania, Ghana and Mozambique and other African countries.
| Depths to be used: | between 0-15 m |
| Cylinder diameter: | 50 mm |
| Maximum Stroke: | 410 mm |
| Approx. discharge (75 watt input): | at 5 m head: 3 m³/hour at 10 m head: 1.8 m³/hour |
| Pumping lift: | 1 - 15 m |
| Population served: | ~ 300 people |
| Households: | 30 hh |
| Water cons: | 15 - 20 lt/per capita |
| Type of well: | borehole or dug well |
Construction, operations and maintenance
Pump head and standing plate are made of galvanised steel or painted with epoxy paint. The entire handle is made of stainless steel. Pump rods and rising main are made of HDPE pipe, plunger and foot valve of HDPE material. This makes the Nira AF-85 Pump completely corrosion resistant.
The Nira AF-85 Pump is a protected product and is not intended for local production. Although, besides the main company in Finland, there is one branch in Ghana (Ghanira) and one in Tanzania (Tanira) assembling this pump locally.
The installation of the Nira AF-85 Pump is easy and does not need any lifting equipment or special tools.
This pump has an excellent “Community Management Potential”. Only simple tools are needed to pull out the entire pumping element as well as the foot valve and rising main. This pump is reliable and popular with the communities.
