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SP11. Product introductionIntroductionThe Grundfos SP range of submersible pumps isrenowned for high efficiency and reliability. Madeentirely of corrosion resistant stainless steel, SPpumps are ideal for a wide variety of applications.Grundfos SP pumps represent state-of-the-arthydraulic design. Built to deliver optimum efficiencyduring periods of high demand, SP pumps provide lowlong-term costs and high operating reliabilityregardless of the application.The SP range offers high efficiency, high resistance tosand and other abrasives, motor burnout protection,and easy maintenance. A complete monitoring andcontrol system is available for constant optimization ofthe pumping system.ApplicationsGrundfos Large SP submersible pumps are suitablefor:• Groundwater supply to waterworks• Irrigation in horticulture and agriculture• Groundwater lowering (dewatering)• Pressure boosting• Industrial applications• Domestic water supply.Pumped liquidsGrundfos SP pumps are suitable for pumping clean,thin, non-aggressive liquids without solid particles orfibers.SP offers stainless steel construction which ensuresgood wear resistance and a reduced risk of corrosionwhere the water has minor chloride content.Optional, upgraded stainless steel construction isavailable for pumping more aggressive liquids:A complete range of zinc anodes for cathodicprotection is available; see p. 97 for applications(for example, sea water applications).For slightly polluted liquids (for example, containingoil), Grundfos offers a complete range of stainlesssteel SP NE pumps with all rubber parts made of FKM.Product introductionFeatures and benefitsFig. 1Grundfos SP pumpsTM05 0051 0611Grundfos SP submersible pumps offer these featuresand benefits:• State-of-the-art hydraulics provide high efficiencyand low operating costs• 100 % stainless steel components inside andoutside for long service life• Sand resistant• Resistant to aggressive water• Motor burnout protection via CU 301• Dry-running protection• Monitoring, protection and communication viaprotection unit MP204, and remote control, R100.3