Great reliability with no compromise between free passage and efficiency

The SL1 1.1-11 kW is a submersible wastewater pump with a Grundfos S-tube® impeller, offering the best solution for large flows of raw sewage, with free passage of solids up to 5”/125 mm. The SL1 from Grundfos is a tried and tested performer in the industry, designed to optimise your system with minimum servicing required. Built for durabity, easy installation and hassle-free operation, the SL1 comes packed with innovative Grundfos features that protect the pump and ensure optimal system performance for industrial and municipal wastewater applications.

Prevent blockages and reduce costs

The SL1 features the Grundfos S-tube® hydraulic design for higher operational reliability and minimum clogging.

SL1 pumps have motors based on IE3 components for improved motor efficiency and longer pump life.

Primary and secondary seal in one cartridge unit provides longer seal lifetime and easy fail-proof replacement in the field without special tools.

The unique Grundfos moisture-proof plug design stops any moisture from entering the motor. 

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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