Grundfos SL1.85.150.185.4.52H.N.51D.A.T Cast Iron 4-Pole Wastewater Pump for Municipal with S-Tube Impeller

Vast underground networks and commercial wastewater plants constantly generate heavy fluid loads requiring unyielding extraction channels. The SL1.85.150.185.4.52H.N.51D.A.T tackles these volume demands directly by deploying a massive 150 mm outlet and matched 150 mm inlet. This submersible asset rapidly purges raw sewage from flooded basins, establishing an invincible protective barrier against devastating municipal flooding.

A central mechanical advantage lies within the premium cast iron fluid chamber, which securely contains a perfectly balanced S-Tube impeller. By scaling the internal tolerance to permit an 85 mm free passage, the pump actively prevents solid-laden sludge and large debris from accumulating inside the primary volute. This engineering capability is vital for permanently eliminating systemic bottlenecks across demanding public building complexes.

Powering this extreme fluid velocity is a highly durable 18.5 kW Grundfos 4-pole motor drawing cleanly from a 415v three-phase grid. The robust drive assembly successfully converts electrical energy into heavy fluid motion, reliably reaching a maximum head of approximately 26 m and an immense 4986 L/Min flow rate. This refined power translates directly into phenomenal thermodynamic stability, preserving drive integrity throughout extensively long transfer cycles.

Actively protecting the commercial investment against submersed threats, the system incorporates vital moisture sensors and motor-protection thermistors directly into its sealed core. These defensive barriers continuously track the casing climate for hazardous liquid leaks or sudden thermal overloading. By isolating the system before mechanical overheating occurs, the pump prevents costly disruptions.

Features

• Features an advanced double shaft seal constructed in a highly modular cartridge format to permit safe fluid sealing replacements without requiring specialized heavy tools.
• Incorporates a dedicated quick-release cable entry connector that actively allows the main fifteen-meter waterproof power cord to be fully disconnected without removing the upper motor cover.
• Constructed using an EN 1561 EN-GJL-250 cast iron motor casing and heavy pump volute to assure maximum mechanical resilience and passive heat dissipation in submersed settings.
• Utilizes a profoundly durable secondary shaft seal constructed from a tough silicon carbide and carbon friction material combination to effectively shield the internal core.
• Rated to safely operate at a maximum continuous installation depth of twenty meters while firmly preserving an absolute eight bar maximum internal operating pressure tolerance.
• Engineered to easily endure extreme continuous submerged fluid temperatures ranging from ten up to forty degrees Celsius within unyielding municipal processing setups.