关断水头：指的是当离心泵启动或性能测试时关闭出口阀门获得的最高出口压力。下面这段英文应该比较清楚。 shut-off head is a condition,when a centrifugal pump runs with discharge valve closed. when a serviced pump is to be tested for its performance , we are running pump with different discharge condition to ensure that the pumpis capable of performing as designed. shut off head is the maximum head generated by a centrifugal pump with zero flow and relatively less power.
