The Grundfos SQ series submersible deep-well pumps are designed for high-efficiency water lifting, incorporating technical features from the SP/SPE series.
1. High Efficiency and Energy Saving
Features stainless steel impellers and an optimized hydraulic design to ensure high-head, high-flow operation while minimizing energy consumption.
Supports variable frequency control (optional), allowing pump speed adjustment based on demand to further optimize energy efficiency.
2. Durability and Reliability
Corrosion Resistance: Pump bodies are made of stainless steel (e.g., EN 1.4401/1.4539 grades), suitable for liquids with sand content up to 50–150 ppm and adaptable to various water quality conditions.
Long-Life Design: Built-in motor temperature protection prevents overheating damage; a robust sealing design ensures stable, long-term underwater operation.
3. Flexible Installation
Supports vertical or horizontal installation; suitable for deep wells, water tanks, and industrial liquid transfer systems.
Optional flow sleeve available to optimize motor cooling and enable operation in high-temperature liquid environments (up to 60°C).
4. Low-Noise Operation
Sound pressure level below 70 dB(A), making it suitable for noise-sensitive applications (such as residential water supply).
5. Wide Range of Applications
Agricultural Irrigation: High-flow design meets the water supply needs of farmland.
Industrial Water Supply: Corrosion-resistant properties make it suitable for industries such as chemicals and pharmaceuticals.
Drinking Water Supply: Complies with sanitary standards; water quality safety can be ensured through clean water flushing.
6. Safety Protection Features
Motor protection devices (e.g., thermal switches, MP 204 protection units) prevent faults such as dry running and overloading.
Lightning protection design (optional) reduces motor damage caused by voltage surges.
7. Easy Maintenance
Modular design facilitates disassembly and repair; backed by Grundfos's global service network.