Grundfos SL1.85.100.150.4.52H.N.51D.A.T Cast Iron 4-Pole Wastewater Pump for Stations with S-Tube Impeller

Premium EN 1561 EN-GJL-250 grade cast iron defines the impenetrable exterior of the SL1.85.100.150.4.52H.N.51D.A.T, delivering immense resistance against harsh submersed wear. Incorporating a heavy-duty 100 mm outlet, this massive submersible wastewater pump locks in structural integrity for demanding municipal treatment plants and vital raw water intake stations. Operating flawlessly within flooded industrial pits, the asset manages incredibly severe fluid surges without compromising the surrounding subterranean infrastructure.

Buried at the center of this thick metallic housing lies a precision-cast S-Tube impeller specifically governed to maintain a strict 85 mm free passage. This exact internal clearance proves absolutely critical for capturing and relocating solid-heavy municipal sewage without stalling. By neutralizing dense blockage risks at the primary fluid transfer layer, the continuous circulation loop remains permanently unobstructed, successfully sparing public processing facilities from disastrous emergency overflow events.

Supplying the necessary kinetic force is an efficient 15 kW Grundfos 4-pole motor wired into a standard 415v three-phase grid. This incredibly balanced assembly outputs an impressive maximum head of approximately 25 m, accompanied by extreme volumetric capacities peaking at 4986 L/Min. The carefully structured internal fluid velocity paths efficiently harness this raw electrical energy, manifesting profound thermodynamic stability and minimal mechanical vibration during extensive daily transfer cycles.

Solidifying its highly protective commercial profile, the system houses highly sensitive moisture sensors and active motor-protection thermistors natively within the main core. These reactive monitoring components constantly trace the sealed motor cavity, building a real-time defensive wall against sudden submersed breaches or dangerous thermal overloads. This autonomous environmental tracking grants facility operators absolute peace of mind while significantly lowering scheduled maintenance footprints.

Features

• Utilizes a state-of-the-art cable entry connector that allows the fifteen-meter heavy power cord to be fully disconnected without removing the upper motor casing.
• Features an easily accessible double shaft seal configured in a dedicated cartridge design, permitting rapid maintenance interventions without heavy specialized equipment.
• Manufactured with a highly durable secondary shaft seal built from an ultra-tough silicon carbide and carbon friction material configuration to protect the internal core.
• Built using premium EN 1561 EN-GJL-250 cast iron across the main pump housing and exterior motor shell to ensure maximum mechanical resilience in flooded environments.
• Designed to seamlessly process immense fluid loads continuously at dense temperature ranges from ten to forty degrees Celsius within permanent municipal networks.
• Engineered to safely endure a maximum continuous installation depth of twenty meters while preserving an absolute eight bar internal operating pressure tolerance.