The Consallen hand pump shown here was installed in Uganda in 1992.
It is one of some 1500 used in a successful, sustainable, and on-going programme
run by the Busoga Trust in Uganda, East Africa.
This pump is installed on a hand dug well. The scheme was started in 1983 using
Consallen pumps supplied by UNICEF. The programme is still installing the same
pump because it has performed well and is economical to operate and maintain - it
is sustainable and has been proved to be the best value. The project also includes
protected springs and drilled boreholes where appropriate.
Maintenance for the Consallen handpumps, including spares and fitting, costs about US$ 20 a year, of which,
20% is for spare parts, and the remainder in the preventative maintenance organisation and management.
They each serve about 250 to 300 people, so the cost is affordable in any society.
This is only possible because the pump is engineered to a quality suited to the
task of 25,000 handle movements a day or 9 million a year.
The Consallen is a 'community' hand pump designed to serve about 250/300 people.
We have developed a unique method of low cost and effective total maintenance,
based on the circuit rider concept, which supports the pump when it is used as
the sole source of clean drinking water for a community. This duty requires that
at least 6,000 litres of water is reliably pumped per day, every day, without
breakdown or failure.
The pump is economical because it will reliably serve more people than others. Cheap
pumps will only reliably serve 100 people or less. Not only are more of the cheaper
pumps required, but also the wells to put them in. This fact renders the Consallen
pump HIGHLY COMPETITIVE for all community water projects.
With the ability to maintain a quality permanent pump like this at reasonable
cost, the useful life is indefinite.
Our experience in the permanent operation and maintenance of hand pumps is available on request.
The original and still the only hand pump which uses entirely STANDARD spare
parts, obtainable from Engineers' Merchants everywhere. All wearing components
like piston seals, bearings, bolts and O-rings are standard commercially available
spares used and stocked for industrial and commercial use all over the world.
Spares are available by mail order, and also from engineer's merchants everywhere.
Long life pumps, easily maintained, spares universally available, from
Engineers and Agricultural Merchants everywhere giving excellent long term
VALUE. All major components such as rodding and rising main are permanent
and corrosion proof. Only small affordable items required
as consumable spares. The high quality ensures that they last indefinitely.
The welded steel pump head is 'hot dip' galvanised after fabrication for
strength and resistance to corrosion. We use high tech laser technology for
accurate fabrication which contributes to the great strength and durability of
this important item. This is the only hand pump currently in production using
three deep groove sealed ball bearings in the handle.
The Consallen will pump from up to 60 metres below ground level, but will
also perform just as satisfactorily in shallow wells.
One full stroke of the positive displacement cylinder is 0.33 litres.
Everything below ground is entirely corrosion proof, being made of stainless
steel and plastics with brass and rubber elements. Nothing below ground is capable
of any type of corrosion in any groundwater.
Pumping cylinders are fully honed seamless drawn Admiralty brass with Nylon
pistons and industry standard hydraulic polyurethane piston seals & wear rings.
Rising Mains (drop pipes) types are in ABS plastic (NOT uPVC) with screwed &
socketed joints, which are unscrwed entirely by hand - no wrenches required.
The standard cylinder and rising main may be comfortably installed in a
borehole internal diameter of only 55mm.
Handle fitted with three industrial standard metric deep groove ball bearings with
two rubber seals, brass centres and retaining bolts in stainless steel. The
housings are NC machined for absolute consistency and to allow the uncomplicated
field replacement of bearings. The new ones can as simply be pushed in
again using hand methods in the field; no need to replace the handle.
Installation and maintenance using a simple 'bicycle' type tool kit weighing 1.5 Kg only.
Speak to us about low maintenance costs and systems to deliver assured and
continuous availability with zero down-time, and a spares system to match, as
mentioned in the Introduction.
Mail order spares delivery option world wide or in country; ask for
details. We will also provide details of your nearest local Engineers'
Merchant on request.
No design can, or indeed should, remain static, and we have developed the pump
design over the years since production began in 1976. Improved materials
and manufacturing methods have been introduced as they became available, but we
have also ensured that no developments have made earlier models redundant.
All current and earlier versions of the Consallen hand pump are entirely spares
compatible. All current spares and all structural components will fit all
Consallen hand pumps of whatever age or year of manufacture.
We intend to continue this policy, and all further development will also ensure
that whatever different methods of manufacture or materials are used, spares will
always fit retrospectively. The Spares are all STANDARD - of course.
This system bye-passes normal banking systems with the delays, costs and bureaucracy
and employs the international Credit Card system in widespread use. It allows
donors and supporters to simply and easily give the necessary funds to support the
pumps they give to villages, schools and churches everywhere.