Reduce costs with a highly efficient SP pump
The Grundfos SP submersible is a highly durable pump made of high-grade, corrosion-resistant stainless steel. Resistant to sand and aggressive water, SP also boasts features such as dry-running protection and motor burnout protection, both of which contribute to the impressive durability of the pump.
Thanks to the optimised hydraulics design, the SP delivers optimum efficiency during periods of high demand, ensuring low long-term costs and high operating reliability. The pumps are suitable for a variety of applications, including groundwater supply to waterworks, irrigation, groundwater lowering, pressure boosting, and industrial applications.
Submersible Motor Guide
Get your copy of the Grundfos submersible motor guide with tips on sizing, selecting and troubleshooting - yours free for a limited time!
Quick-Ship Program for Large SP & PACO LC Products
We want to make your workday easier - getting the pumps you need when you need them does just that. Grundfos Quick Ship Programs ensure that our large SP submersibles and end-suction pumps are available for your next retrofit or new build application.
WaterPRO Program – Purchase Grundfos Products & Get Rewarded
Learn about the 2020 WaterPRO Program for water well contractors and the benefits available:
- 5-year extended warranty
- Company listing on our WaterPRO installer finder
Join the Future of Water System Management – WellConnect
Custom designed for well drillers and pump installers, WellConnect allows you to digitize your records, increase productivity and record customer information. Keep track of important materials like drilling logs, well permits, pump information and application test results, all from the palm of your hand.
Grundfos Delivers a Reliable Water Supply for a Farmer in Texas
Learn why Moy’s Water Well Drilling & Services of Texas used a Grundfos stainless-steel SP submersible and MP204 monitor to provide a reliable water supply for a pivot irrigation system and feed lot.
Explore the High-Quality Submersible Range
Looking for a submersible pump system that includes protection and monitoring features and precise speed, pressure, level, and flow control? The 100% stainless-steel Grundfos SP submersible can be paired with our MS, MMS motor range, CUE variable frequency drive, and GO remote app to deliver just that.
Interested in improving your product knowledge?
Find out about the latest studies of pumps and systems, where to use Grundfos solutions and how to achieve the best performance, or search Grundfos research & insights for specific learning materials, articles, white papers, videos and much more that benefit your solution.
Get answers to your questions about this product
We have gathered frequently asked questions and their answers in one place. See the most frequently asked questions below or go to the Grundfos FAQ for a complete list of answers to questions about our products.
Can the SP pumps also be operated in a horizontal position?
SP submersible pumps with a Grundfos or other submersible motor can be operated in any position from horizontal to vertical. The motor is arranged below the pump. A cooling jacket is generally required for these installation positions.
What can I use GRUNDFOS SP submersibles for?
GRUNDFOS SP-series submersibles are suitable for:
- Drinking water supply in cities and municipalities
- Water supply at dairies, breweries and mineral water bottling plants
- Family Houses
- Groundwater heat pump facilities
- Irrigation systems used in horticultural, agricultural and forestry applications
- Water fountains, also for horizontal installation
- Dewatering in civil engineering and mining applications
- Water supply ...
What does downforce in a submersible pump mean, and what causes it?
Downforce is a downwardly directed force acting on the pump's impeller/shaft unit during operation. Most pumps and motors are designed so that a downforce must always be present during operation. However, downforces that are too high may also lead to problems, if for instance the pump is operating at a duty point with a low flow rate and thus high delivery pressure. In the event of continuous operation in this range, the motor's axial bearing may be damaged. Furthermore, the pump and motor...
What does water hammering mean, and what causes it?
Water hammering is a pressure surge caused by a rapid change in flow velocity in the pipeline. This phenomenon is referred to as "water hammering" because the pressure surges are frequently accompanied by a noise that sounds as if the pipeline were being pounded with a hammer.
In well installations, water hammering generally occurs if a) the non-return valve in the downpipe extending down from the pump is installed more than 9 m above the water level, or b) the non-return valve ...
What is a cooling jacket and when should it be used for submersibles?
A cooling jacket, also referred to as a flow generator, ensures that there is always sufficient water flow across the motor surface in order to cool the motor.
In a typical well installation, the pump is surrounded by the walls of the well. The motor is installed below the pump. Because the pump draws in water from below, the water flows along the well walls and over the surface of the motor, cooling the motor in so doing.
If the pump is installed in open water, there will ...
What is 'lift', and what causes it in submersibles?
‘Lift’ refers to a condition whereby an upwardly directed force acts on the impeller/shaft unit of the pump during operation. This condition can be observed when the pump is pumping more water than what it is rated for, i.e. if the pump is operating far to the right on the curve
However, in normal well applications where a non-return valve is installed, lifting forces generally do not occur. This is because the static liquid column remaining in the pipeline after the pump is turned ...
