Exceptional features of the Extra Deep Well Hand Pump

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 though, 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 Nitrile 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 counterweights 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 counterweights 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.

Aakash International Manufacturer Deep Well Hand Pumps

A deep well hand pump is used when the static water level (distance between a top of the ground and top of the water level) is more than 20 meters. In most cases, the pump cylinder is installed at least 20 meters below the static water level and connects to the wellhead through a series of PVC pipes and stainless steel lift rods. Since these pumps draw water from deeper than usual levels, it is necessary that they are sturdy and strongly built.



The deep well hand pump can be installed in bore wells of a diameter of minimum 125mm and the internal diameter of the underground cylinder ranges from 60-65mm. the stroke length ranges from 120-130mm. these hand pumps give a water discharge of 12-15 liters per minute of 40 strokes, and an average of 900-960 liters per hour. The maximum depth of operation of these hand pumps is 30 meters. These pumps are self-priming and do not require routine maintenance. Also, they are available in different grades and dimensions, which can be customized as per the client requires. This pump has excellent “community management potential” and can be easily installed and repaired by a village caretaker or women, making it popular with small communities. The above ground parts of the pump can be locally manufactured, but the rest of the components require a high degree of manufacturing quality, which is not available around the globe. So in some countries, these components need to be imported. However, imported components require strict quality control and check to increase the lifetime of the hand pump, and considerably reduce wear and tear of parts and disuse due to corrosion.

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. The sturdy design and inbuilt strength of the product warrants that maintenance costs are low and constant replacing of parts are not required. Additionally, comprehensive and detailed user manuals are provided to ensure hassle-free and easy installation of the product.

India Mark II Hand pump-The Backbone of community water supply

The India Mark II Hand Pump, a conventional lever action pump, is one of the largest selling hand pumps across the world. The government of India along with the continuous and considerable efforts of non-governmental, industrial and multilateral organizations in the 1970s developed this mechanically efficient hand pump. The above ground mechanism comprises of the pump head, handle, water tank and stand assemblies, and the below-ground mechanism comprises of riser pipes, connecting rods and cylinder assembly. The pump is designed for heavy-duty use and is capable of serving communities of up to 300 people.

This pump consists of a pump head, pump stand and a handle made of galvanized steel. The downhole components consist of a brass lined cast iron cylinder with a foot valve and a plunger of brass. Since this pump is not corrosion resistant and requires special skills and tools for maintenance along with installation, it is not considered to be a VLOM (village level operation and management of maintenance) pump. Thus it cannot be used in areas with aggressive water conditions. The above ground body of the pump is made of welded steel plates and is hot dip galvanized for corrosion resistance. The handlebar is designed to reduce the pumping effort of the user to a minimum since the weight of the connecting rods is counterbalanced. The cylinder has a highly polished brass liner, which ensures a long life of the nitrile rubber pump bucket.  The pump requires a circular operating space of 2m diameter and the operating depth ranged from 25-90m and gives a water output of 900 liters per hour at 40 strokes per minute. The speed might vary, reaching a maximum of 125 strokes per minute but the ideal speed remains 40 strokes per minute. The riser pipes are 32m in diameter and GI, SS, UPVC pipe variants are available.

The mark II pumps manufactured by Aakash International possess features that differentiate them from other variants available in the market. The pumping head, handle, pump stand, rising main and rods are made of galvanized steel which makes them corrosion resistant, while the pump cylinder caste and foot valve are made of brass. Also, the Indian Bureau of Standards has been adhered to while manufacturing of this product to ensure the provision of maximum quality to the customers.

Under the hand pump project of the UNDP/World Bank,   extensive trials were conducted on twelve different deep well hand pumps from all over the world, including France, Holland, Canada, Sweden, South Africa U.K., U.S.A., and India. The parameter for testing included ease of manufacture and use and installation, mechanical and volumetric efficiency, the frequency of breakdowns and maintenance needed, user-friendliness and acceptability, and resistance to corrosion. Mark II emerged as the best hand pump of all through these tests, which makes it the most widely used hand pump around the world. The sturdy nature of this hand pump requires adherence to standards of quality control to eliminate broken down pumps that are not in use due to use of substandard parts during manufacturing. At Aakash International, it is made sure that the standards provided by the Indian Bureau of Standards are adhered to, which ensures that only the best quality is provided to customers.