Description: highest head of a pump if it is not reached atzero flow rate; Name: peak head
Description: Highest total head developed by a pump when this does not occur at a zero rate of flow; Name: Head at peak point
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, A1