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: Determined difference between the total head at the oulet side of the installation and the total head at the inlet side of the installation; Name: Installation total head
Description: norm describing the material. The material number is taken from this norm. Type and number of the norm with issue year and issue month must be given; Name: Reference norm material of the pump head