SP Features

Reliability in stainless steel

Grundfos’ range of submersible pumps (SP) is renowned worldwide for its reliable performance, high energy efficiency and long product life. A complete range of SP pumps is available to cover all application requirements with high efficiencies and high reliability at any given flow:

• Variants: 4″, 6″, 8″ and 10″
• Capacities: Up to 335 m3/h
• Head: Up to 810 m
• Motor range: Up to 250 kW

Features & Benefits

Reliable operation

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 brackish water
•    EN 1.4539/AISI 904L for aggressive water, e.g. seawater

Life Cycle Cost

Low life cycle costs

Featuring superior hydraulics, the SP pump offers high energy efficiency and low energy costs. A complete SP system including frequency drive or a motor protection unit and monitoring equuipment, can offer energy savings up to 50%!

Special motor

Special motor

Grundfos MS and MMS motors are specially designed for the SP pump to ensure superior operation. The  motors are constructed from 100% stainless steel and available in 3 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 brackish water (MMS)
•    EN 1.4539/AISI 904L for aggressive water, e.g. seawater (MS + MMS)

Offering best in class energy efficiency the motors reduce operating cost to provide attractive return on investment. A hydro dynamic bearing design adds to the long product life as it reduces wear.

Sand-resistant bearings

Sand-resistant bearings

Sand-resistant bearings ensure consistent performance and prolong the pump’s service life. Sand-resistant bearings are standard on all medium SP pumps and can be supplied on other variants on request. 

Easy customisation

Easy customisation

The modular construction of the SP pump makes customisation easy. Special requirements can be supplied on request.

Thorough quality tests

Thorough quality tests

SP pumps are subjected to careful quality checks throughout the manufacturing process before they leave the factories.