Grundfos SL1.50.65 .09.2.50B Submersible Pump

The Grundfos SL1.50.65 .09.2.50B submersible pump is an advanced solution specifically designed for wastewater management in a variety of commercial and industrial applications. This equipment is optimised to handle unfiltered wastewater, process water, and sewage, making it an indispensable tool in environments where efficient and reliable disposal of these liquids is crucial.

One of the standout features of this model is its innovative S-tube® impeller. This technology provides a spherical free passage for solids up to 50 mm, ensuring the pump operates without blockages even in demanding conditions. The ability to handle solids along with a maximum dry matter content of 3% ensures that the SL1.50.65 .09.2.50B pump is suitable for a wide range of wastewater applications.

The design of this non-self-priming pump makes it perfect for submerged installations, both in intermittent and continuous operation. It is constructed with high-durability materials, including cast iron in its hydraulic body and impeller, offering extended service life and reliable performance. Additionally, its stainless steel coupling facilitates quick disassembly for maintenance tasks without the need for specialised tools, thus reducing downtime and operational costs.

Key technical features:

• Nominal flow rate: 8.02 l/s, with a maximum flow rate of 16.1 l/s, ensuring optimal performance across a wide range of scenarios.
• Nominal lift height: 5.22 metres, allowing efficient transport of wastewater to different discharge levels.
• Liquid temperature: The operating range covers from 0 to 40 °C, with 20 °C being the optimal operating temperature, ideal for standard wastewater applications.

The motor is designed to offer efficient performance, with a nominal power of 0.9 kW and a speed of 2920 rpm. The pump uses a direct-on-line (DOL) starting method and is equipped with integrated thermal protection, adding a layer of safety to the equipment. Furthermore, it complies with IP68 protection rating, ensuring its resilience in submerged working environments and adverse conditions. With a cos phi (power factor) of 0.76 at full load, the motor efficiency is 65%, ensuring controlled energy consumption.

Regarding installation, the pump is versatile. It can be installed at depths of up to 7 metres, making it suitable for a variety of industrial environments. Its outlet connection is DIN type, with a size of DN 65 and a nominal pressure of PN 10. The automatic coupling system (model 96090992) facilitates its integration into larger systems, reducing installation complexity.

Additional important details:

• Maximum working pressure: 6 bar.
• Robust materials: Pump body in EN-GJL-250 cast iron and motor housing in EN-GJL-200.
• Power cable length: 10 metres, offering flexibility in installation without the need for additional extensions.
• Net weight: 53.3 kg, reflecting the solidity of its construction without compromising manageability during installation and maintenance.

In summary, the Grundfos SL1.50.65 .09.2.50B is a highly efficient and robust submersible pump, ideal for wastewater transport in commercial and industrial environments. Its sturdy design, along with its ease of maintenance and ability to handle large solids, make it a reliable choice for professionals seeking durable and high-performance solutions in wastewater management.