The
India Mark III Hand Pumps are sturdy
and robust pumps, with conventional action lever, that can be installed in
shallow to medium-deep wells. The pump is designed for heavy-duty use and can
serve village communities of up to 300 people. The configuration of this pump
is very similar to the India Mark II, except the down-hole components, which
were slightly changed and modified to make the hand pump more suited to village
level operation and maintenance, with simpler tools and lesser cost of
maintenance. The most decisive modification was the open-top cylinder that
allows for the removal of the plunger and foot valve without the extraction of
the cylinder and rising main.
The pump can be installed in a borehole or a
dug well. The maximum recommended lift for the India Mark III is 30 m. Apart
from the standard 63.5 mm configuration, there exists a version with a Ø50 mm
cylinder size for lifts of up to 50 m. The pump head, handle, water tank, pump
stand, and pump rods are made of galvanized steel, rising main of galvanized GI
pipe, pump cylinder of cast iron/brass, plunger and foot valve of brass. This
pump is not corrosion resistant and this limits its use to areas with suitable
water conditions (pH value<6.5). It delivers a maximum stroke length of
125mm and the water discharge ranges from 0.8 to 1.8 cubic meters per hour,
depending on the head dimensions, which range from 30m to 10m. The Cylinders
are available in Ø50 mm and Ø62.5 mm. All the above-ground components of the
pump can be locally manufactured, however, the other components require a high
degree of quality control check while importing, to ensure reliable operation.
The cylinder can be installed and repaired using simple tools, which allows for
hassle-free repairs by trained locals, including women.
The India Mark III hand pumps manufactured at Aakash International offers 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. Additionally, the pump is available in two variations- 50mm OTC and 65mm OTC, which differ in the dimensions of the riser pipes. Both these variations can be installed in a borehole of up to 45m. Also, comprehensive and detailed user manuals along with tool kits are provided along with the product to ensure hassle-free and easy installation, besides smooth repairs.
