Grundfos SEV.80.80.40.2.50B Cast Iron 2-Pole Submersible Pump for Effluent Transfer with SuperVortex Impeller

Hydraulic behavior and internal fluid velocity paths for the SEV.80.80.40.2.50B utilize a SuperVortex configuration to manage contaminated grey water and sewage. This design addresses the circulation stability required in municipal collection pits and treatment plant transfer duties by allowing solids to pass freely through the housing. The assembly is optimized for continuous wastewater transfer in environments prone to sediment or varying liquid levels. Its architectural build ensures reliable performance in both submerged and dry-pit configurations for long-term service.

Hydraulic performance is driven by a 4 kW motor on a 415v three-phase supply, generating a maximum flow of 1332 L/Min. This high-capacity model achieves a maximum total head of 23.2 m, making it suitable for high-elevation discharge in pressurized sewer networks and pump stations. Operating with a rated current of 8.2 Amps at 2925 rpm, the unit maintains consistent torque for processing fluids with a pH between 4 and 10. Rapid evacuation is achieved through the DN 80 discharge port using a 15-metre Lyniflex cable for secure electrical distribution.

The SuperVortex centrifugal design is engineered for liquids containing solids up to 80 mm in diameter without internal clogging. By utilizing a vortex flow path, the pump minimizes internal vibration and friction, which extends the service life of the rotating assembly during prolonged duty cycles. This configuration is intended for wastewater disposal where organic materials are present in suspension. The cast iron impeller resists the abrasive wear typically found in grey water and municipal sewage applications where reliable flow is needed.

Mechanical stability is achieved through a heavy-duty cast iron housing and motor shell with an IP68 protection rating for permanent dry or submerged installations. The motor is shielded by a double mechanical shaft seal in an oil bath, utilizing a SiC/SiC primary seal for abrasive resistance and a CER/CARNBR secondary seal. This unit features an internal thermal sensor for motor protection and monitoring during continuous operation. The assembly includes a DN 80 inlet and a DN 80 outlet for integration into standard wastewater infrastructure and lift stations.

Features

• SuperVortex impeller design handles solids up to 80 mm without risk of internal blockages during wastewater disposal.
• Cast iron pump housing and motor shell provide a stable foundation for dry or submerged pit installations up to 20 m.
• Maximum head performance of 23.2 m supports wastewater discharge in municipal and treatment plant applications.
• Double mechanical shaft seal in an oil bath with silicon carbide faces ensures protection for the 4 kW motor.
• DN 80 inlet and DN 80 outlet connections are sized for high-volume wastewater transfer through standard networks.
• IP68 enclosure rating ensures the motor remains protected during permanent immersion in **wastewater**.
• Lyniflex 15-metre power cable provides a secure, chemical-resistant electrical connection for wastewater handling service.