Grundfos SL1.85.150.100.4.52H.N.51D.A.T Cast Iron 4-Pole Sewage Pump for Treatment with S-Tube Impeller

Vast underground networks and sprawling commercial wastewater plants constantly generate heavy fluid loads that require unyielding extraction channels. The SL1.85.150.100.4.52H.N.51D.A.T tackles these severe volume demands directly by deploying a massive 150 mm outlet alongside its 150 mm inlet. This huge submersible asset rapidly purges raw sewage and greywater from flooded basins, establishing a nearly invincible continuous protective barrier against devastating municipal infrastructure flooding.

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

Powering this extreme internal fluid velocity is a highly durable 10 kW Grundfos 4-pole motor drawing cleanly from a commercial 415v three-phase grid. The robust drive assembly successfully converts electrical energy into heavy fluid motion, reliably reaching a maximum head of approximately 19 m and an immense 4986 L/Min flow rate. This refined, raw power translates directly into phenomenal thermodynamic stability, perfectly preserving internal drive integrity throughout extensively long transfer cycles.

Actively protecting the commercial investment against unexpected submersed threats, the system incorporates vital moisture sensors and motor-protection thermistors directly into its fully sealed core. These dedicated defensive barriers continuously track the motor casing climate for hazardous liquid leaks or sudden thermal overloading. By proactively isolating the system before severe mechanical overheating can occur, the pump successfully prevents costly disruptions across the primary extraction loop.

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 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.