SEG grinder pumps are built tough and versatile

SEG grinder pumps 0.9-4 kW are the perfect choice for pumping untreated wastewater and toilet waste from single houses, small communities and less populated areas as part of a pressurised pipe network where sewer systems or gravitation systems aren’t an option. SEG grinder pumps are designed for reliability and efficiency and are very cost-effective. The capability for use with smaller pressure pipes means the pumps are cheaper to install and operate, more energy-efficient and reliable for years to come.

AUTOADAPT versions incorporate a controller, sensors and motor protection. Simply connect to the mains supply and the pump adapts automatically to the conditions in the pit.

Efficient, cost-effective and reliable

The patented Grundfos grinder enables use with smaller pressure pipes. 

Toolless operation

Unique clamp system allows quick and easy disassembly from motor unit, with no tools required.


With Grundfos AUTOADAPT, a controller, sensors and motor protection are built into the pump, and up to four pumps calibrate and adapt automatically to conditions in the pit.

GO Remote

Communication with Grundfos GO Remote and Modbus network, with CIU for configuration of AUTOADAPT data.

See how customers benefit from this product

When Grundfos is a part of the solution, you get reduced energy consumption, increased comfort and unsurpassed operational reliability. Read our customers' own stories about how they benefit from the Grundfos approach to intelligence, water and energy.

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Interested in improving your product knowledge?

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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.

Whatever you need, Grundfos service is here for you!

Whether you need a one-time service or a complete maintenance program, Grundfos offers a wide range of service offerings to keep you covered for the lifetime of all your pumps.