SB Drainage/pump submersible pumpset a compact design pump below the motor, there is a common shaft between pump and motor, the pump motor unit is of close coupled construction and perfect isolation is achieved with the help of a double mechanical seal in separate oil chamber and special leap seal is provided which keeps motor away from the water being pumped, High grade corrosion and abrasion resistance material is being used for robust application. Impeller is non - clog type dynamically balanced, vortex type design.