Ball recirculating pump is constant circulating power source ofrubber ball in Condenser Tube Cleaning Systems. This pump isspecial no-obstacle centrifugal pump with a motor-driven,horizontal, single pole, bottom suction type. It possessesmany good characteristics such as wide flow channel, low-speed,small size and suitable for long time continuous operation.Supporting motor protection level is higher than IP54. Our motorsare made of F-class insulation material. According to B-levelassessment, its temperature won’t exceed 80???, even when thesurrounding temperature rises to 40 ???. The water caused byball screen is sent to cooling inlet tube by enhancing pressure. Weshould choose different flux, lift and parameters to guarantee thenormal operation of rubber ball according to different workingcondition.