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Solar Water Pumps

One of the most important specifications to consider when selecting between the many available types of available water pumps is the type of power source that will be required to run to pump.  Electric water pumps are quite common.  These include both AC and DC powered pumps (such as 12 volt water pumps). Gas powered water pumps and other fuel driven pumps (oil, gas, diesel, etc.) are both reliable, commonly available, and capable of generate high degrees of lift. 

Almost all the types of conventional water pump technologies have been adapted into solar powered pumps.  Solar powered pumps have DC powered motor with controller to regulate the power fed into the pump.  Some high end types can be connected directly to the solar array and come with all the smart features including low water shut down.

While solar powered water pumps are not generally able to provide the same motive forces as electric or gas driven water pumps, they are useful in small flow situations, especially in applications that require remote placement, or in places where regular supervision is not available.



The name SQ Flex underscores the system's flexibility: Customers can choose from seven different solar pumps, which can be backed-up by wind turbines, water reservoirs or diesel generators. To facilitate the customer's search for the suitable device, Grundfos has developed a PC-based sizing tool that allows the customer to choose the right pump and to determine the number of necessary solar modules. Customers only need to know three parameters: the water quantity required per day, the location (the tool divides the world into different regions according to solar radiation) and the depth of the well.

The SQ Flex pump portfolio contains three helical rotor pumps and four centrifugal pumps. The helical rotor pumps are used for high heads and low flows. The maximum depth is 120 meters (375 feet), and the maximum flow is 2.5 m3 per hour. The centrifugal pumps are best suited for wells with a maximum depth of 30 meters (100 feet). The biggest of Grundfos' centrifugal models can provide a flow up to 14 m3 per hour. All of the pumps come with three phase motors that use permanent magnets instead of brushes and have a maximum power input of 900 W of either AC or DC voltage; for DC supply, a MPP-tracker for the integrated electronic unit can optimize the pump's working point. Maximum current is 7 Amps.

Please chick here to download system brochure. 



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