(1) Flow Q flow is the amount (volume or mass) transported by the subordinate pump within the unit time.

     The volume flow is represented by Q, the international unit is: M3/S, and the commonly used in the project is M3/H, L/S, etc.

     Quality flow is represented by QM, international units: KG/S, and L/H commonly used in engineering.

     The relationship between quality flow and volume flow is

     Qm = ρq (7-1)

The density of the liquid in the formula (kg / m3);

     Q — Volume flow (m3 / h) o