The main advantages and disadvantages of centrifugal pumps

The main advantages of centrifugal pumps
  A. Centrifugal pump flow range is very large, commonly used in the 5 ~ 2000m. / H, the largest foreign reach 54500m3 / h. Another flow and pressure are smooth, no fluctuations.
    B. Centrifugal pump speed is high, can be directly connected with the motor and steam turbine, transmission mechanism is simple and compact.
    C. Easy to operate, easy to adjust and repair, and easy to automate and remote operation.
    D. Centrifugal pump compared with the same indicators of the reciprocating pump, the structure is simple and compact, small size, light weight, fewer parts, easy manufacturing, low cost, and small footprint, so its equipment and repair costs are relatively low.
  Centrifugal pumps have major drawbacks:
A, in general, the centrifugal pump before starting the first pump or water ring vacuum pump to pump out the air. Self-priming centrifugal pump before the start, although there is no need to pump, but there are limitations on the use. B, liquid viscosity on the performance of a greater impact on the pump. When the liquid viscosity increases, the pump flow, head, suction and efficiency will be significantly reduced. C, centrifugal pump in the case of small flow of high-lift applications, subject to certain restrictions. Because the small centrifugal pump pump flow channel is very narrow, manufacturing difficulties, while the efficiency is very low. Although the centrifugal pump has some shortcomings, but the advantages of more, in many cases, centrifugal pumps are replaced by the reciprocating pump, so the centrifugal pump has been widely used.