What is the difference between "water intake flow" and "water intake flow rate" in laboratory ultrapure water machines?

When looking at the parameters of the ultrapure water machine, many laboratory staff found that some expressions are "the water intake flow rate is XX", while others are "the water intake flow rate is XX", so which of these two expressions is correct? ?

First of all, we only need to understand the concepts of the two words "velocity" and "flow". "Flow velocity" means the distance traveled by a flowing object in unit time; and " flow rate" means "the volume of fluid passing through a certain cross-section in the flow tube per unit time". Therefore, when describing the water intake per unit time of an ultrapure water machine, it is not accurate to use "flow rate", but "flow rate" is correct.

So what determines the "water intake flow"? In fact, the flow rate is greatly related to the pressure of the booster pump. The greater the pressure, the greater the flow rate, and the water machine has a maximum water intake flow rate. The water flow rate determines the time it takes for the user to take a certain amount of water. The laboratory staff should all know that this factor has little effect on the experiment, and the water flow rate of various brands of water machines is almost the same.

What really affects the laboratory work and benefits is the ultrapure water production volume of the ultrapure water machine, which is also a very important factor to measure the quality of the ultrapure water machine.