flow parameter in pump?

[chemical321]

what are parameters determine the quantity of flow in a pump?
1- D of impeller
2- Rpm of shaft
and what are others?

 

[1gibson]

Specific speed

 

[Artisi]

A book on basic pump design.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)