Power 5.5Kw, lift 3 meters, entrance 60, exit 50. How to calculate the flow of this pump? Detailed formula and technology can be traced back online.

Gosh, 30 meters is almost the same with 5.5KW. Generally speaking, knowing the lift and power, we must know the efficiency of a pump before we can calculate it. According to the calculation formula of shaft power.

Power = flow * lift * gravity acceleration * medium density /(3600* pump efficiency)

In ...

Flow unit: cubic meter/hour

Main unit: m

Medium density: 1000kg/m3.

The acceleration of gravity is 9.8.

Suppose the flow rate is X, the power is 5.5KW*0.9=4.95KW, and the lift of 3m is desired. Generally, it may be an axial pump with an efficiency of 40%, that is, 4.95 = x * 3 * 9.8 *1(3600 * 40%), and X is about 242, but so it is.

See if there's anything wrong. Generally speaking, the general flow rate of 65 inlet pump is between 20 and 50.