Grundfos SE / SL Series: The Ultimate Standard in Wastewater Reliability
Engineering Resilience into Every Flow
The pump is the heart of any wastewater network, yet changing flow requirements and unpredictable solids constantly threaten system uptime. The Grundfos SE/SL range is engineered to meet these challenges head-on. By merging submersible and dry-installed versatility with industry-leading hydraulic innovation, we ensure your operations remain fluid, efficient, and entirely trouble-free.
Unmatched Reliability Meets Peak Total Efficiency
We don’t believe in compromising between high efficiency and reliable solids handling. The SE/SL series delivers the highest wire-to-water efficiency on the market without sacrificing the large spherical free passage required for modern wastewater.
S-TUBE®: Redefining Hydraulic Logic
At the core of the SE/SL range is the S-TUBE® hydraulic system. Unlike traditional impellers that trade efficiency for clog resistance, the S-TUBE® offers:
Superior Non-Clogging Performance: A simple, robust design that allows for seamless passage of solids.
Balanced Operation: Reduced vibration for longer bearing and seal life.
SmartRing: Simplified Longevity
Maintenance shouldn’t be a bottleneck. Our innovative SmartRing technology features an easily replaceable wear ring that:
Extends Service Intervals: Built from materials designed to withstand high-wear environments.
Restores Factory Performance: A quick replacement returns the pump to its original efficiency levels, slashing long-term labor costs.
Flexible Installation for Any Environment
Whether your facility requires a submerged wet-pit setup or a dry-column installation, the SE/SL series adapts to your infrastructure. This flexibility makes it the ideal choice for municipal sewage, industrial process water, and heavy-duty drainage.
The Economic Edge: Lowest Total Cost of Ownership (TCO)
A quality pump is an investment in your facility's future. By focusing on the "Total Cost of Ownership," Grundfos provides more than just hardware:
Energy Savings: High-efficiency motors and optimized hydraulics significantly lower monthly utility costs.
Reduced Downtime: Self-cleaning capabilities and wear-resistant components prevent the emergency failures that stall productivity.
Digital Intelligence: Our solutions are digitally enabled, allowing for smart asset management and real-time monitoring within a truly connected system.
Sustainability Profile: Lower energy consumption and longer product lifecycles help you meet modern environmental targets.
SEV & SE1: The Versatile Core of Modern Wastewater Networks
The SEV and SE1 series are designed to handle 90% of all pumping requirements, providing a universal solution for small, medium, and large-scale wastewater tasks. With motor sizes ranging from 1.1 to 11 kW, these pumps are the workhorses of the industry, engineered for those who demand both flexibility and relentless durability.
Engineered for Extreme Reliability
Both the SEV and SE1 share a foundation of heavy-duty components designed to survive the harshest environments:
Advanced Shaft & Bearing Protection: A shortened rotor shaft significantly reduces vibration, protecting the heavy-duty ball bearings and extending the life of the mechanical cartridge shaft seals.
Watertight Integrity: A removable, fully sealed cable entry point acts as a fail-safe, ensuring that no liquid can penetrate the motor housing.
100 mm Solids Handling: When equipped with specialized hydraulics, these pumps effortlessly manage large solids (up to 100 mm), virtually eliminating the risk of blockages.
Innovative Cooling & Installation Flexibility
At the heart of the SEV/SE1 range is a unique, patented heat transfer solution. This technology eliminates the need for external cooling liquids, providing two major advantages:
Overheat Protection: The pump remains cool and reliable even during continuous operation in non-submerged (dry) conditions.
Universal Installation: Because they don't rely on surrounding water for cooling, you have total freedom to install these pumps in any configuration your site requires.
Maintenance Made Simple
We believe that high-performance equipment should be easy to maintain. The SEV and SE1 series incorporate features that respect your team's time:
Quick-Access Clamp Technology: Provides fast, tool-free access to the motor and hydraulics for inspection or cleaning.
Cartridge Seal Design: Simplifies service and ensures the pump is back in operation with minimal downtime.
SLV/SEV Advantage - Optimized for High-Solids & Gassy Media
When your wastewater contains high dry matter content, fibrous materials, or gassy sludge, you need a hydraulic solution specifically engineered for fluid movement. The SLV and SEV series utilize a SuperVortex impeller, making them the premier choice for challenging media where traditional pumps might struggle.
The Power of the SuperVortex
Unlike standard impellers, the SuperVortex design creates a powerful whirling flow within the pump housing. This offers distinct operational advantages:
Fiber & Gas Management: The vortex action keeps fibers moving and prevents gas pockets from stalling the pump, ensuring a consistent, clog-free flow.
Low-Wear Operation: Because the media is moved by the vortex rather than direct contact with the impeller, internal wear is significantly reduced.
Intermittent Efficiency: This design is most effective for applications with low-to-medium operating hours, providing a reliable "on-demand" solution for specialized waste streams.
