Centrifugal pump in addition to a single independent work, but also can be a few pumps in parallel or in series. Parallel operation of the pump, that is, the inlet and outlet of several pumps are respectively connected in the same suction and discharge piping system. But parallel pump as far as possible not to use the same suction tube, so as not to interfere with each other. Series is the 1 sets of centrifugal pump discharge port received second sets of centrifugal pump suction inlet pipe line.
1. Centrifugal pump parallel operation can increase the flow rate. In the same pipeline system, increased traffic ratio decreases with the increase of the number of parallel pumps.
2. Centrifugal pump in series can improve the head, but to pay attention to the pump in series in tandem pump body strength.
3. It is best to use the same performance of the centrifugal pump in series and parallel.
4. Either in parallel or in series, the working point of the single centrifugal pump should be in the high efficiency zone.
