Grundfos SE1.110.200.150.4.52M.N.51D.A.T Cast Iron Sewage Pump for Wastewater Handling with S-Tube Impeller

Reliable high-volume drainage in large-scale municipal stations requires efficient hydraulic assets like the SE1.110.200.150.4.52M.N.51D.A.T Submersible Wastewater Pump. This unit utilizes a high-efficiency motor and hydraulic assembly to manage municipal sewage transfer while processing effluent within a liquid temperature range of 10°C to 40°C. Maintaining stable performance in submerged pits, the system ensures reliable effluent management for treatment plants and industrial complexes. The technical configuration is intended for high-capacity liquid movement where efficient service is critical for facility protection.

Performance is delivered by a 15 kW four-pole motor on a 415v three-phase supply, producing a rated current of 29 Amps. The pump generates a maximum flow of 6360 L/min and reaches a maximum head of 18 m for high-load evacuation duties. The unit utilizes a star-delta starting method to manage peak electrical loads and operates at a rated speed of 1480 rpm. Power is distributed through a 15-metre power cable to facilitate installation in deep collection pits and subsurface infrastructure across large-scale municipal complexes prone to an ambient temperature range of -20°C to 40°C.

Internal hydraulics utilize a cast iron S-TUBE impeller designed to facilitate the passage of solids up to 110 mm without internal contact. This specialized hydraulic configuration offers high efficiency and significant clog resistance, reducing the risk of downtime in intensive municipal service. By enabling the free passage of particles through the housing, the unit ensures consistent volumetric throughput during prolonged operation. The S-TUBE impeller is specifically engineered for reliable sewage collection where durability is a priority for the network and infrastructure maintenance.

Mechanical integrity is reinforced by a cast iron pump body with an IP68 enclosure rating for immersion up to 20 m. Motor protection is provided by a double mechanical shaft seal featuring silicon carbide faces in an oil bath, ensuring the motor remains shielded from liquid ingress. This model includes internal moisture sensors and thermistors for real-time monitoring of the Class H insulated motor assembly. Standard DN 200 connections are used for both inlet and outlet to ensure compatibility with standardized municipal wastewater and high-capacity drainage infrastructure.

Features

• S-TUBE impeller configuration ensures efficient solids handling up to 110 mm and reduces the risk of internal blockages.
• Heavy-duty cast iron housing and motor shell provide the structural durability needed for deep submerged installations.
• Double mechanical shaft seal with silicon carbide faces ensures the 15 kW motor remains protected from contaminated liquid.
• Class H insulated motor assembly includes integrated thermistors and moisture sensors for proactive monitoring.
• Four-pole motor configuration operating at 1480 rpm provides the torque required for processing high-volume drainage duties.
• DN 200 inlet and DN 200 outlet ports allow for standardized integration into municipal wastewater pipework.
• Integrated cooling jacket supports operational integrity in both dry and submerged mounting configurations.