Grundfos Submersible Groundwater Pumps

The Grundfos submersible groundwater pump range consists of the SP pumps, which feature advanced hydraulic designs for improved efficiency and reliability. These pumps are specifically engineered to handle challenging sand and other abrasive materials while minimising downtime. They come equipped with motor burnout protection and are constructed entirely from corrosion-resistant stainless steel, significantly extending their lifespan. The SP range is available in various sizes, including 4", 6", 8", and 10" pumps, with motor sizes ranging from 0.37 kW to 250 kW.

Design Advantages

  • Grundfos' original MS/MMS motor is designed to match the pump for optimal efficiency
  • A dedicated electronic motor protection unit helps prevent downtime
  • Variable speed drives and remote management systems allow for more effective pump control
  • Compact design with powerful operation
  • Dry-running and overload protection enhance reliability
  • The simple design facilitates easy maintenance, reducing overall costs

Key Specifications

  • Max flow: 290 m³/h
  • Max head: 661 m
  • Max operating pressure: 60 bar
  • Liquid temperature: -15-90 °C

Applications

  • Livestock watering
  • Solar boosting and water supply solutions
  • Solar water solutions
  • Community water supply
  • Groundwater intake
  • Water pressure boosting
Grundfos Submersible Groundwater Pumps - SP ModelGrundfos is deemed the largest pump manufacturer in the world with more than 19,000 employees globally and an annual production of over 16 million pump units.

OUR RANGE OF AVAILABLE Grundfos SP PUmps

Grundfos SP submersible borehole pumps are fully engineered systems designed to handle contaminated or polluted groundwater, making them suitable for applications like leachate management, sampling, and water quality monitoring. Thanks to their optimised hydraulic design, SP pumps deliver high efficiency, resulting in low long-term costs and exceptional operational reliability.

Advantages

  • A combination of high-quality materials and an excellent hydraulic design results in best-in-class efficiency and reliability.
  • All parts are made from stainless steel, providing extreme resistance to corrosion.
  • Equipped with a non-return valve to reduce the risk of damage from water hammer.
  • Available in hundreds of variants and sizes, offering custom solutions for specific applications.
  • Powered by canned MS motors with up to 30 kW capacity or rewindable MMS motors with up to 250 kW capacity.
Grundfos SP Pump

SP Pumps

Max flow: 290 m³/h
Max head: 661 m
Max operating pressure: 60 bar
Liquid temperature: -15-90 °C

Grundfos SP Pump

SP-NE Pumps

Max flow: 23 m³/h
Max head: 71 m
Max operating pressure: 60 bar
Liquid temperature: -15-60 °C

Features of the SP Pump
Features of the MS/MMS Motors

Improved discharge
Easier and safer attachment to the riser pipe

Cable guard attachment
Improved screw-on attachment of the cable guard

Built-in non-return valve
All SP pumps are delivered with a non-return valve to minimise the risk of water hammering damage

Corrosion resistant
AISI 304 stainless steel inside and out makes the SP very resistant to corrosion and extra high-grade steel versions for aggressive liquids are also available

Wear resistance
Less abrasive wear: Octagonal bearings and sand flush channels remove particles with the pumped water. Sand resistance is further increased by using the bearing that provides a longer lifetime in sandy underground environments

Optimised hydraulics
For better performance and fewer breakdowns

FKM rubber parts
This option makes the SP suitable for water slightly contaminated with, for example, oil

Stop ring
Protect the pump in case of up thrust

Failure rate close to zero
Durable and well-protected: Statistics compiled since 1967 show that SP pumps have a warranty return rate close to zero

Customised solution
Contact your Grundfos distributor if you require a SP system tailored to your specific application

Exchangeable shaft seal
The standard mechanical shaft seal used in the MS/MMS motors is very easy to service and replace. For applications that involve sand or abrasives, a SiC/SiC sand-resistant shaft seal is also available

Tempcon sensor (MS)
MS motors are available with a built-in Tempcon or Pt 100/1000 temperature sensor, eliminating the need for extra cables or sensors

Corrosion resistant
The MS/MMS motors are available in stainless steel to match the corrosion resistance of the SP pump units. Extra high-grade steel versions for aggressive liquids also available

Rewindable motor (MMS)
In MMS motors the stator can be rewound locally, ensuring minimal cost and downtime

High thrust capacity
Michell-type thrust bearings with high thrust capacity. Quickly builds up a water film during start-up to ensure high thrust capacity

Motor protection and monitoring
Optimise reliability and monitor performance with electronic motor protection (MP 204) or a Variable Frequency Converter (CUE) and a remote monitoring system (Grundfos Remote Management)

Warm water versions
Available for temperatures up to 60°C for MS and 50°C for MMS motor series

OUR RANGE OF AVAILABLE Grundfos SPE PUmps

SPE pumps are a part of the broader SP range and are frequency-regulated submersible pumps designed for groundwater. They are known for their high efficiency and resistance to abrasive materials. Like the SP pumps, SPE pumps are made entirely of stainless steel, and they come in three material grades. The 6" motor (4 to 45 kW) is a permanent magnet type that offers high energy efficiency but requires a frequency drive for operation.

Advantages
Specifications
  • Durable stainless steel construction ensures long-term durability and resistance to corrosion and abrasion.

  • Available in 6", 8", and 10" sizes.

  • The frequency drive allows for variable speed control, optimising performance and energy efficiency.  

  • Max flow: 128 m³/h
  • Max head: 412 m
  • Liquid temperature: -15-60 °C

PRINCIPLE OF OPERATION

Grundfos submersible centrifugal groundwater pumps are designed to extract water from underground sources and transport it to the surface. These pumps are submerged in water and utilise a motor and impeller to create a pressure difference that forces the water upwards through a riser pipe or hose. They are constructed from corrosion-resistant stainless steel and are equipped with a hermetically sealed submersible motor.

Servicing you anywhere in Australia

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