Grundfos SE.150.130.4.52H.N.51D.A.T Cast Iron 4-Pole Sewage Pump for Wastewater with Open S-Tube Impeller

Sewage collection systems in large-scale municipal complexes require the handling of contaminated liquids at varying flow rates to prevent system stagnation. The SE.150.130.4.52H.N.51D.A.T facilitates reliable wastewater transfer in dry or submerged environments where fluid temperatures range between -10 and 40 degrees Celsius. This unit supports continuous service in drainage stations and effluent collection pits. Maintaining structural integrity during permanent installation is necessary for subsurface infrastructure protection across civil drainage networks.

Hydraulic behavior for the SE.150.130.4.52H.N.51D.A.T is driven by a 13 kW four-pole motor operating on a 415v three-phase supply with a rated current of 26 Amps. This configuration generates a maximum flow of 6960 L/Min and achieves a maximum head of 24.7 m. The motor utilizes a star-delta starting method to manage peak electrical loads during initial activation cycles in deep pits. Consistent pressure behavior at 1483 rpm ensures the system satisfies the requirements of municipal lift stations.

The Open S-Tube centrifugal impeller configuration facilitates the passage of solids in suspension without the internal clogging that compromises volumetric efficiency over long-term service. By utilizing a high-efficiency hydraulic profile, the unit minimizes internal friction and vibration to protect the rotating assembly during high-volume discharge. This design handles wastewater and effluent, maintaining circulation stability throughout thousands of operating hours in municipal collection systems. The impeller setup is intended for liquids containing solids where reliable flow behavior is required.

Construction utilizes heavy-duty cast iron for the pump housing and motor shell with an IP68 protection rating for immersion up to 20 m. Longevity is anchored by a silicon carbide primary shaft seal and a silicon carbide/carbon secondary seal in an oil bath for motor insulation. This model includes integrated thermistors and moisture sensors to facilitate proactive monitoring of the Class H insulation motor assembly. The architectural casting includes a 338 kg net weight and DN 150 connections for high-capacity integration into standardized wastewater infrastructure.

Features

• Open S-Tube impeller design enables the passage of solids through the pump casing without compromising volumetric hydraulic throughput.
• Cast iron pump housing and motor shell provide a rigid structural foundation for permanent installations up to 20 m deep.
• Double mechanical shaft seal utilizing silicon carbide faces in an oil bath ensures the motor remains shielded from liquid ingress.
• Internal thermistors and moisture sensors provide real-time monitoring to safeguard the Class H insulation assembly against overheating.
• Four-pole motor configuration operating at 1483 rpm provides the hydraulic torque needed for processing high-volume wastewater.
• Standardized DN 150 inlet and DN 150 outlet connections allow for high-capacity liquid transfer through municipal plumbing networks.
• High-efficiency 13 kW motor utilizes a star-delta starting method to stabilize electrical current consumption.
• Integral cooling jacket supports operational integrity in both dry and submerged installation environments.