Machinery is designed to make people’s lives easier. So it is
almost arbitrary that it is designed keeping in mind the ever-dynamic
conditions and needs of people. The India Mark II extra deep well hand pump, designed with this thought, is a
conventional lever action hand pump designed for lifting water from extra deep
sources, i.e. where the static water level is deeper than usual, and eliminates
the use of conventional wells. This requires these pumps to be sturdy and
strongly built. The maximum recommended
lift for these pumps is 80m. Since the installation and maintenance of these
pumps require special skills and tool sets, which exceed the ability of the
village caretakers, they are not considered to be VLOM (village level operation
and management) pumps. However, specifically trained area mechanics are
available to install and maintain these pumps
The India Mark II extra deep well hand pump is a modified
version of the India Mark II, better suited for deeper static water levels. The down-hole components consist of a brass lined cast iron
cylinder and a brass plunger, which has a triple cup seal of Nitrite rubber.
The rising main is of Ø 32 mm (1 ¼”) GI pipe and the pump rods are of galvanized
steel with M12 connectors. It has a stroke length of 10mm that
delivers a water discharge of 12 liters per minute, at 40 strokes, which is
capable of serving hygienic drinking water to small village communities of up
to 200 people, with 10-15 households.
The handle of the extra deep well hand pump has a bigger
cross section and tee-bar attachments with extra weight, which helps in
reducing the manual effort while pumping. Since the water is lifted from a
deeper than usual level, it is imperative that extra effort would be required
to draw it out. But the counter weights attached to the handle assist in the
movement of the handle while in use, and thus reduce the manual effort to a
minimal. The number of counter weights varies in accord with the exact depth at
which the cylinder has been installed. No weight is required for 50-60m depth,
one weight for 60-70m depth, two weights for 70-80m depth and three weights for
80-90m depth. The pump head, handle, water
tank, pump stand and pump rods are made of galvanized steel, rising main of
galvanized GI pipe, pump cylinder cast of iron or brass, and plunger and foot
valve of brass. This pump does not have a corrosion resistant quality and
should advisably not be used in areas with aggressive water (pH value <
6.5).
The India Mark II extra deep well hand pumps manufactured at
Aakash International offer optimum
quality through excellent craftsmanship and stringent adherence to industry
standards. The raw materials required to build these products are acquired from
trusted industry vendors, and are integrated with advanced working mechanisms.
Apart from that, strict quality control methods are followed during the
manufacturing of these products, which ensures that only the best quality
reaches the customers, at modest and affordable prices.
