Description: Design flow rate in the pump inlet port divided by the inlet cross-section of the pump; Name: average design speed in the inlet
Description: rated flow at pump inlet connection divided by the inlet area of the pump; Name: mean rated velocity at inlet
Description: PN (nominal pressure) is an alphanumeric variable for reference purposes, relating to a combination of mechanical and measurement properties of a pipe component. It comprises the letters PN followed by a dimensionless number (according to EN 1333/96.08); Name: Nominal pressure of the muffs, A2