Description: Difference in total energy height between the outlet side and the inlet side of the installation.; Name: Total height energy difference of the plant
Description: difference between the total head at the outlet side of the installation and the total head at the inlet side of the installation; Name: installation total head
Description: DN (nominal width) is an alphanumeric description of the size for components in a pipe system as a reference, in contrast to components that are defined by an external diameter or by a thread size. It comprises the letters DN followed by dimensionless whole number, which is in indirect correlation with physical size of the bore or external diameter of the connections (measured in millimeters). NOTE 1: the nominal width DN cannot be used for measurements or calculations. NOTE 2: Some older international norms describe the nominal width as a nominal diameter, but both terms are identical for this norm. NOTE 3: the nominal width is defined is alignment with ISO 6708. in accordance with EN 60534-1; Name: Nominal width of the muffs, A1