ZH series direct coupled pump is the derivative product of CH standard chemical pump, its size and performance are in line with DIN24256/ISO2858 standard, the performance range includes all the performances of CH series standard chemical pump and IS series centrifugal water pump, the efficiency, cavitation performance and operation stability of the series are far exceed IH, IS type pump. Because the pump and motor rotor coaxial, greatly reducing the size, widely used in installation compact size limitations and space conditions.