GRUNDFOS SLV Series Submersible Wastewater Pumps (Commercial/Industrial)
I. Key Product Features
High-Efficiency Impeller Technology
SuperVortex Free-Flow Impeller: Designed for wastewater containing fibers and solid particles; offers strong anti-clogging capabilities; suitable for municipal, commercial, and industrial wastewater (e.g., high-fiber applications like papermaking and food processing).
Large Free Passage Design: Free spherical passage of 50–150 mm (depending on model), capable of handling large debris particles.
Versatile Installation Methods
Auto-coupling System: Enables quick installation and maintenance; compatible with guide rail brackets for easy lifting and servicing.
Free-standing Submersible Installation: Equipped with a ring stand; suitable for environments with muddy or uneven basin floors.
Intelligent Monitoring System
WIO Water-in-Oil Sensor: Real-time monitoring of water content in the oil chamber (0–20%); triggers an alarm upon detecting abnormalities to prevent mechanical seal failure.
Thermal Protection: Integrated thermal switches/Pt1000 sensors; automatically cuts power at 150°C to prevent motor overheating.
Moisture Switch: Moisture protection at the motor base; automatically stops the pump upon contact with water.
Explosion-proof Certification
Certified to ATEX (KEMA08ATEX0125X) and IECEx standards; suitable for potentially explosive atmospheres (e.g., oil and chemical industries); protection class Ex db IIB T4/T3 Gb.
II. Technical Specifications
Power Range: 1.1–11 kW (supports VFD operation; minimum frequency ≥50% of rated speed).
Flow Rate/Head: Max. 90 m³/h; max. head 44.9 m (Model SLV.80.80.110.EX).
Material Options: Standard cast iron version or stainless steel impeller version (corrosion-resistant; suitable for liquids with pH 6–14).
Protection Class: IP68; suitable for continuous submerged operation (S1 continuous or S3 intermittent modes). Temperature adaptability: Liquid temperature 0–40°C (short-term tolerance up to 60°C); ambient temperature -20 to +40°C.
III. Typical Application Scenarios
Municipal drainage: Wastewater treatment plants, stormwater pumping stations.
Commercial facilities: Wastewater discharge from hotel and shopping mall basements.
Industrial sector: Food processing wastewater, fiber-laden wastewater from paper mills, mine drainage.
IV. Maintenance and Safety
Durable design: Permanently lubricated bearings; annual oil inspection (Shell Ondina X420) based on 3,000 hours of operation per year.
Special requirements for explosion-proof models: Annual inspection by authorized personnel required; replacement bolts must comply with EN/ISO 3506-1 A2-70 standards.