Close Coupled Pump is a pump with built-in electric motor, with the motor drive and pump impeller on the same shaft. In this pump, no coupling is provided between the pump and motor shafts and the pump housing is flange-mounted between close-tolerance fits on both the motor and the pump flanges. The pump impeller is mounted directly on the motor shaft. Close coupled pumps handle abrasive and corrosive materials.
Close-coupled self-priming centrifugal pumps are designed for continuous low-pressure circulation and transfer of non-flammable liquids, water circulation, irrigation, spraying and other general-purpose pumping applications. It is compatible with pump component materials where suction lift is required. Self priming centrifugal pumps are close-coupled to continuous duty motors and designed to provide high volume service for industrial and commercial applications such as process applications, for nonflammable liquids compatible with pump component materials, liquid and chemical transfer, dewatering, irrigation and decorative water features.