Grundfos SE1.110.200.100.4.52M.N.51D.A.T Cast Iron Sewage Pump for Civil Drainage with S-Tube Impeller

High-capacity stormwater drainage in civil infrastructure depends on the performance of the SE1.110.200.100.4.52M.N.51D.A.T Submersible Wastewater Pump. This unit addresses the environmental demands of large-scale collection stations where surface water and effluent must be evacuated efficiently. It is built for permanent submerged duty or dry installation, processing media within a liquid temperature range of 10°C to 40°C. Maintaining network stability during peak weather events is the primary function of this heavy-duty cast iron assembly in municipal drainage stations.

Technical specifications include a 10 kW four-pole motor configured for a 415v three-phase supply, producing a rated current of 21 Amps. This setup generates a maximum flow of 6180 L/min and reaches a maximum head of 13 m to satisfy requirements in gravity-fed drainage systems. Electrical starting is managed via a star-delta method to protect the motor assembly, while the 1482 rpm rated speed ensures torque stability. Deployment in deep subsurface pits is supported by the 15-metre power cable and a maximum installation depth of 20 m.

Internal fluid paths utilize an S-TUBE impeller configuration to facilitate the passage of solids up to 110 mm without contact or internal clogging. This hydraulic design provides high efficiency and significant blockage resistance, ensuring reliable wastewater transfer during intensive service in municipal complexes. By enabling the movement of large suspended particles through the housing, the pump maintains its volumetric throughput throughout thousands of operational hours. The S-TUBE impeller is specifically engineered for high-volume liquid handling where system durability is critical.

Structural integrity is provided by the cast iron pump housing and motor shell with an IP68 enclosure rating. The motor is protected by a double mechanical shaft seal utilizing silicon carbide faces in an oil bath to prevent ingress. Real-time monitoring of the Class H insulated motor assembly is enabled by integrated thermistors and moisture sensors. Standard DN 200 inlet and DN 200 outlet ports allow for high-capacity integration into municipal wastewater pipework and standardized drainage infrastructure across an ambient temperature range of -20°C to 40°C.

Features

• S-TUBE impeller design enables the passage of solids up to 110 mm with significant resistance to internal clogging.
• Heavy-duty cast iron housing and motor shell provide the structural durability required for deep submerged installations.
• Double mechanical shaft seal utilizing silicon carbide faces ensures the 10 kW motor remains shielded from ingress.
• Internal moisture sensors and thermistors provide monitoring to safeguard the Class H insulated motor assembly.
• Four-pole motor configuration operating at 1482 rpm provides the torque needed for high-volume stormwater drainage.
• DN 200 inlet and DN 200 outlet connections allow for high-capacity liquid transfer through standardized pipework.
• IP68 enclosure rating confirms the system is suitable for permanent immersion in aggressive wastewater environments.