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Grundfos SP Series
Grundfos’ range of submersible pumps (SP) is recognized worldwide for its reliable performance, high energy efficiency and long product life. Invented in 1967, the SP pump was the first ever stainless steel submersible pump – and to this day it remains the benchmark in the market.
SP pumps cover a wide range of applications where efficient water pumping is required, including; Water supply, Irrigation, Mining, Fountains, Reverse osmosis, Dewatering, Ground water lowering and many more.
The NEW upgraded and extended range of high-capacity 4” submersible pumps which have improved octagonal discharge, cable guard attachment, wear resistance and optimized hydraulics offer increased performance and efficiency.
Reliable Operation
The SP pumps are made from 100% high-grade stainless steel to ensure efficient corrosion resistance and long product life in even the most demanding environments. The range is available in three grades of stainless steel:
EN 1.4301/AISI 304 for drinking water
EN 1.4401/AISI 316 for slightly aggressive water
EN 1.4539/AISI 904L for higher salinity water, e.g seawater
Special Motor
The Grundfos MS and MMS motors are specially designed for the SP pump to ensure a perfect match in submersible applications. The 100% stainless steel motors are available in three grades of stainless steel to ensure long product life:
EN 1.4301/AISI 304 for drinking water (MS + MMS)
EN 1.4401/AISI 316 for slightly aggressive water (MMS)
EN 1.4539/AISI 904L for higher salinity water, e.g seawater (MS + MMS)
Offering the best in class energy efficiency the motors reduce operating costs to provide an attractive return on investment (ROI). A hydrodynamic bearing design adds to the long product life as it reduces wear.
Grundfos is able to equip any application with a complete SP system to optimize performance and energy efficiency. An SP system combines:
- A high-grade stainless steel SP pump
- A dedicated MS/MMS motor
- A frequency drive (CUE) or an electronic motor protection (MP204)
- Monitoring (Grundfos GO)
One of the most prominent benefits of applying an SP system is the significant savings potential. By eliminating all excessive energy usage a Grundfos designed system may provide savings of up to 50%.
In addition to correctly sized SP pumps and motors energy-efficient operation is achieved and improved by:
- Using frequency drives – these translate into increased energy efficiency and consequently reduced energy consumption and lower bills
- Adding monitoring to the pump/motor/frequency drive ensures that you are always aware of what is going on in the system and can adjust operation accordingly – without manual inspection of the pumps.
Grundfos SQE Constant Pressure System
SQE Pump and Motor
The SQE is the only constant pressure pump on the market fully equipped with built-in electronic controls that allow for advanced computer controlled performance and state of the art protection features including sophisticated diagnostics. The motor design is a Variable Speed Drive which electronically changes the pump speed to match demand providing you with the incredible comfort of constant pressure.
Each unit is equipped with:
- Soft start – prevents water hammer and motor overheating
- Dry run protection – pumps are water lubricated and if your well runs low, an unprotected pump will die
- Overload protection – if a pump becomes clogged with debris like sand or grass, it can destroy an unprotected motor
- Over and Under voltage protection – the lifetimes of unprotected motors can be greatly reduced by improper voltages. Rural parts of the country are notorious for wide variations in voltage supply
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