Afridev Hand Pump

Target SDGs

Market Suggested Retail Price

$1,700.00

Target Users (Target Impact Group)

Community

Distributors / Implementing Organizations

SK Industries, among other local manufacturers varying by region. In Pakistan and Afghanistan, derivatives of the Afridev Pump have been developed and distributed using different names including Pamir Pump.

Competitive Landscape

Direct competitors include India Mark II Handpump.

Regions

Africa

Countries

Afghanistan, Cambodia, Laos, Pakistan, Vietnam

Manufacturing/Building Method

All steel parts can be locally manufactured. The specifications of each individual part from SKAT with engineering drawings are available online in the Afridev Handpump Specification document. Underground components must be manufactured by local companies who manufacture PVC-U pipes and have engineering processing knowledge. Pumps can be mass manufactured.

Intellectural Property Type

Open-source

User Provision Model

Individuals can purchase pumps from local manufacturers directly.

Distributions to Date Status

100,000+ since the 1980s. Correspondence with designer

Design Specifications

The Afridev is a conventional lever action hand pump which is corrosion resistant and easy to install. Its configuration includes an:

‘Open top’ cylinder: the piston can be removed from the cylinder without dismantling the rising main)
Retractable foot valve
Pump Materials include:

Pump head, handle and pump stand: galvanized steel
Pump rods: stainless steel or FRP rods (fibre glass reinforced plastic)
Plunger and foot valve: brass or plastic
Rising main of PVC-U pipe (Ø 63 mm)
Cylinder of PVC-U pipe with brass liner (Ø 50 mm)
Suitable conditions for use of hand pump:

Type of well: borehole or dug well.
Depths to be used: 10-45 m
Cylinder diameter: 50 mm

Product Schematics

Technical Support

The Afridev Pump has high potential for community-based maintenance. Rural Water Sanitation Network provides technical support in an extensive manual which outlines guidelines for weekly, monthly, and yearly checks of the pump.

Replacement Components

Most components can be locally manufactured. The neoprene rings used as piston seals may not be locally available as they are much more difficult to manufacture.

Lifecycle

Most components can be locally manufactured. The neoprene rings used as piston seals may not be locally available as they are much more difficult to manufacture.

Manufacturer Specified Performance Parameters

The Afridev Pump is a public domain pump defined by RWSN specifications noted in the vetted performance section.

Vetted Performance Status

Technical data published by Rural Water Sanitation Network relating to performance measurements are as follows: Maximum Stroke: 225 mm Approximate discharge (75 watt input): 1.4 m³/hr (10 m head), 1.1 m³/hr (15 m head), 0.9 m³/hr (20 m head), 0.7 m³/hr (30 m head) Pumping lift: 10 – 45 m Population served per unit: ~ 300 people Households per unit: Up to 50

Safety

No known hazards.

Complementary Technical Systems

The pump requires a concrete slab to be constructed underneath the pump to reduce the amount of loose, contaminated water that would otherwise flow through the soil and down into the water supply.

Academic Research and References

Compliance with regulations

Every country in sub-Saharan Africa has experienced handpump standardisation, either formally or informally. Below is a list of known product compliance with regulations: Regulation: Ghana, Mali, Niger, Nigeria Endorsement: Angola, Benin, Malawi, Mozambique, South Sudan. The product is also compliance with regulations in Afghanistan and Pakistan for Afridev variants. Correspondence with designer

Evaluation methods

An early version of the Afridev was tested during the 1980s World Bank/UNDP handpump project in both the lab and the field. Correspondence with designer

Other Information

A number of projects have utilised the Afridev Hand Pump.