Solar Hand Pumps- environment friendly technology

A solar hand pump is a water pumping device that utilizes solar energy to draw and pump water from a bore well during the day and offers an option to store water in an overhead tank, for use when solar energy is not available. It is an eco-friendly and sustainable use of technology without any impairment to the environment. Since it only requires solar power for operation, it proves to be more cost-effective than the pumps that use electricity.

The solar-powered submersible pump can be installed on a bore well and operates on the electricity generated by the solar array. Batteries are not required for power storage. The submersible pump directly stores water in an overhead tank, for use in the absence of power from the solar array. The set up is convenient and simple, which entails no operational costs, while the cost of maintenance is also relatively low.

The pump head is made up of stainless steel and the body is lightweight. The size of the operating head can be chosen from 15m to 90m as per requirement. The pump discharges water ranging from 500 to 4500 liters per hour. The pump can be installed in bore/tube wells of 100mm and above diameter and requires a brushless DC or a specially designed AC motor for operation. The voltage requirement of the motor ranges from 30 to300 volts, depending on the quantity of water drawn. The optimum rate speed of the pump is 500rpm and can reach a maximum of 3600rpm. Monocrystalline or multi-crystalline photovoltaic cells are fitted into an aluminum frame to create the solar array. A galvanized piping structure is used for mounting the solar array, which makes it corrosion resistant. The solar panel can also be tilted in any suitable direction for the optimum utilization of the panel. A power output of the panel ranges from 500-2000 watts at 15 to 100 volts, and the operating temperature ranges from 40 to 80 degree Celsius.

A deep well hand pump can also be installed on the same bore, using riser pipes, as a backup, for assurance against lack of solar power.

The solar hand pumps manufactured at Aakash International use the best quality raw materials acquired from trusted vendors of the industry. Also, strict quality control measures and adherence to industry standards are followed to ensure that only the superlative quality reaches the customers. The products are designed keeping in mind the varied needs of customers and a wide range of globally sought-after products developed using high-end technology and, can be procured at modest and affordable prices.

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 pumps 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.

Community Management Potential of the India Mark III hand pump

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. Maximum recommended a lift for the India Mark III is 30 m. Apart from the standard 63.5 mm configuration, there exists a version with 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 a 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 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. 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 toolkits are provided along with the product to ensure hassle-free and easy installation, besides smooth repairs.

Deep Well Hand pumps Manufacturer by Aakash International

A Deep well hand pump is used when the static water level (distance between the 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.

Afridev Hand Pumps Manufacturers Exporters Aakash International India

Hand pumps are readily replacing the conventional use of wells to provide a simple solution for providing a hygienic supply of drinking water in rural and suburban environments. They improve the hygienic conditions under which water is drawn off, by eliminating the use of buckets and open vessels, thereby eliminating to a great extent the risk of water contamination.

The Afridev hand pump is one of the few recommended by UNICEF as pumps benefiting from its VLOM (Village Level Operation and Management of maintenance) label, in other words, robust pumps that can be fully maintained locally, either by the community members themselves or by a technician that they can call out quickly, and which are also produced locally and selected, managed and maintained by the community. It is designed for heavy-duty use, with a conventional lever action that can serve communities of up to 300 people. Its maximum recommended lift is 45m and the pump is fully corrosion resistant, the bearing bushes being hot dip galvanized and made of special plastics. Alternative stainless steel lined cylinders are also available for aggressive water conditions apart from the mild steel variant. The pump comes with variable handle settings, which makes it possible to adapt to varying groundwater levels at different times. The spout length and pedestal can be customized according to different needs. The assembling and dismantling of the parts are quite effortless since the foot valve fitted on to the pump can be easily retracted using a fishing tool. Rubber centralizers are provided to each connecting rod to prevent internal damage to uPVC pipes, due to corrosion. 225 mm stroke length of the handle in afridev hand pump can provide a water discharge of 1350 liters per hour with an installation depth range between 15 m to 45 m. These hand pumps have quick release eye & hook tool-less ends on connecting rods with rubber centralizers facilitate maintenance and protect the riser pipe against internal wear.  Special tools and guided installation manuals are also available with the afridev hand pumps, which makes the assembling and installation very easy. Fulcrum & Rod hanger pins are supported on special grade plastic Bush Bearings, which are easily replaceable. The uPVC riser pipe, cylinder, plunger & foot valves used in the pump are lightweight and inexpensive. Additionally, rubber centralizers are provided to each uPVC pipe to prevent external damage, which further lowers the maintenance and operational costs.

Afridev hand pumps manufactured at Aakash International have a few special features that distinguish them from other pumps available in the market. A choice of Eye & hook connecting rod or threaded connecting rod is provided. They are easy to instate and can be accomplished even by women mechanics in villages. Additionally, quick release Eye & Hook tool-less ends on Connecting Rods with rubber Centralizers facilitate maintenance and protect the riser pipe against internal wear.  The tools for installation and maintenance, along with an interactive user manual are provided along with the hand pump.
The unique features of the Afridev hand pump render it a special quality which sets it apart from the conventional manual hand pumps as it can be quite easily assembled and installed and doesn’t need dismantling of all the parts for maintenance or replacing. Also, it cuts out on the high maintenance costs owing to the noncorrosive nature of the connecting rods. The tools for installation further eases out the usage. The afridev hand pump thus eliminates the difficulties and complexities associated with machinery and give it a user-friendly quality, while solving the problem of hygienic drinking water supply in urban and suburban areas.