Grundfos SEV.80.80.92.2.50B Cast Iron 2-Pole Submersible Pump for Sewage Collection with SuperVortex Impeller

Internal fluid velocity paths and hydraulic behavior for the SEV.80.80.92.2.50B utilize a SuperVortex configuration to manage heavily contaminated liquids. This submersible pump addresses the requirements of municipal wastewater networks and collection systems where grey water with a pH range of 4 to 10 is present. The unit is intended for wastewater transfer and effluent management in municipal collection pits. It maintains stable operation in dry or submerged installations prone to varying fluid ingress and temperatures up to 40°C to protect sub-surface infrastructure and pump stations.

Hydraulic capacity is provided by a 9.2 kW motor on a 415v three-phase supply, generating a maximum flow of 1500 L/Min. This high-capacity model achieves a maximum total head of 37.6 m, making it suitable for discharge in pressurized sewer mains and treatment plant transfer duties. Operating with a rated current of 17.3 Amps at 2935 rpm, the unit maintains consistent torque for processing fluids in drainage stations. Rapid evacuation is achieved through the DN 80 discharge port using a 15-metre power cable for secure electrical distribution across large-scale facilities.

Internal centrifugal design utilizes a SuperVortex impeller to facilitate the passage of solids in suspension without internal clogging. This configuration handles particles up to 80 mm in diameter, maintaining volumetric efficiency throughout prolonged service cycles. By utilizing a vortex flow path, the unit minimizes internal vibration and friction to protect the rotating assembly during grey water handling. The impeller configuration is intended for sewage pumping and grey water transfer where consistent flow behavior is necessary for maintenance of wastewater infrastructure.

Mechanical integrity is reinforced by a heavy-duty cast iron pump body and motor shell with an IP68 enclosure rating for protection against ingress. Longevity is anchored by a double mechanical shaft seal arrangement featuring a SiC/SiC primary seal and a CER/CARNBR secondary seal in an oil bath. This unit includes integrated moisture and water-in-oil sensors for early fault detection and operational monitoring. The assembly includes a DN 80 inlet for integration into permanent wastewater infrastructure and treatment plant transfer duties.

Features

• SuperVortex impeller design handles solids up to 80 mm without risk of internal blockages during wastewater transfer.
• Cast iron pump housing and motor shell provide a stable foundation for dry or submerged pit installations up to 20 m deep.
• Maximum head performance of 37.6 m allows for wastewater discharge in industrial and municipal applications.
• Double mechanical shaft seal in an oil bath with silicon carbide faces ensures protection for the 9.2 kW motor.
• Integrated moisture and water-in-oil sensors enable proactive monitoring and early fault detection for extended service.
• IP68 enclosure rating ensures the motor remains protected during permanent immersion in wastewater.
• Lyniflex 15-metre power cable provides a secure electrical connection to three-phase 415v supplies in deep pits.