Groundwater is a favoured source for municipal water supply systems offering a stable source based on natural filtration through the earth’s substrata, compared to polluted surface waters and the dry season water shortages from rivers and lakes.
Correct groundwater abstraction is central for ensuring the highest levels of energy optimisation and sustainability, which in turn is reflected in reduced lifecycle costs. Optimising this process means bringing together a number of areas of specialisation in the well field, such as the groundwater reservoir, the abstraction wells, the submersible pumps chosen, the raw water pipeline system, and the groundwater quality.
Grundfos offers submersible multistage SP pumps for all well types. The Grundfos SP pumps represent state-of-the-art hydraulic design. Built to deliver optimum efficiency during periods of high demand, the SP pumps provide low long-term costs and high operating reliability. In addition to a durable pump, you gain reliability and trouble-free, continuous operation, with very long service intervals when compared with other solutions. With a superb build quality and utilising our proven abilities with hydraulics, Grundfos pumps ensure reliable operation without pump failure, and are designed to withstand wear from sand.
Well field optimisation is an important issue. Typical problems encountered at a well field may be that the pumps used are too big or too small, the water table level may be lowering, requiring the pumps to manage greater head, and there may be issues with the water speed and pressure in the pipes network. These issues may result in inefficiency, increased costs, and the need to protect the water table.
Grundfos looks closely at the entire well field operation and through increased efficiency can achieve energy savings with a quick pay-back time. Experience has shown that half of all the savings in energy consumption that can be made in a municipal water supply are to be made in the well field.
By integrating variable speed drives and motor protection components, Grundfos can offer complete systems that are pre-engineered to work together. The Grundfos CUE represents one of the most comprehensive and versatile ranges of external variable speed drives for pump applications currently on the market. Together with the easy to use MP 204 motor protection, we ensure 24-hour monitoring and control of all vital parameters, such as dry-running or overload, to ensure operational stability.
Together with skills in well field management, Grundfos can supply the specialist expertise to help meet your performance objectives, from the initial identification of needs, to the selection, installation, operation, and maintenance of the pumping solution. Grundfos commissioning agreements ensure correct installation and service agreements cover all eventualities, from routine maintenance to spare parts and pump audits.