Grundfos SE.150.150.4.52H.N.51D.A.T Cast Iron 4-Pole Sewage Pump for Effluent with Open S-Tube Impeller

Environmental demands in large-scale municipal complexes require specialized hydraulic solutions for efficient effluent management and wastewater collection. The SE.150.150.4.52H.N.51D.A.T handles contaminated liquids in subsurface pits where reliable solids passage is required for infrastructure protection. This four-pole pump maintains stable performance at temperatures up to 40 degrees Celsius in drainage stations and lift stations. Maintaining operational flow behavior in dry or submerged installations is essential for infrastructure protection.

Hydraulic capacity is provided by a 15 kW motor operating on a 415v three-phase supply with a rated current of 30 Amps. This assembly generates a maximum flow of 7500 L/Min and achieves a maximum head of 26.3 m for high-volume wastewater handling. The motor operates at a synchronous speed of 1480 rpm, providing the starting torque and hydraulic stability necessary for processing fluids in municipal networks. Electrical connection is established via a 15-metre power cable to facilitate distribution for deep-pit wastewater applications.

Internal centrifugal design utilizes a high-efficiency Open S-Tube impeller to facilitate the passage of solids in suspension without internal clogging. This configuration handles particles through the housing, preventing the internal contact that could compromise volumetric throughput over thousands of operating hours. By utilizing the Open S-Tube hydraulic principle, the design reduces internal wear and vibration while maintaining efficient solids passage during high-volume discharge cycles. The hydraulic setup is intended for high-capacity effluent transfer and wastewater management in municipal and industrial collection systems.

Mechanical stability is reinforced by an IP68 protection rating and a double mechanical shaft seal arrangement featuring silicon carbide faces in an oil bath. Longevity is maintained by Class H insulation components and integrated thermistors for proactive monitoring of the 15 kW motor assembly. This model includes moisture sensors to facilitate early fault detection in submerged conditions. The architectural casting features a 354 kg net weight and DN 150 inlet and outlet connections for high-capacity integration into standardized wastewater infrastructure.

Features

• Open S-Tube impeller configuration facilitates high-efficiency liquid handling and prevents internal blockages in high-volume networks.
• Heavy-duty cast iron construction of the housing and motor shell provides the structural durability needed for deep pit installations.
• Four-pole motor operating at 1480 rpm provides the starting torque required for high-volume wastewater collection and transfer.
• Double mechanical shaft seal in an oil bath with silicon carbide faces ensures the motor remains shielded from liquid ingress.
• IP68 enclosure rating confirms the unit is suitable for permanent immersion in wastewater collection pits up to 20 m deep.
• Integrated thermistors and moisture sensors enable real-time monitoring to protect the Class H insulated motor assembly.
• DN 150 inlet and DN 150 outlet connections allow for high-capacity liquid transfer through standard pipework.
• Integral cooling jacket supports operational integrity in both dry and submerged installation environments.