Description: Difference of the total energy head at the outlet side of the pump to the total energy head at the inlet side of the pump; Name: energy circulating lift of the pump
Description: difference between the total head at the outlet side of the pump and the total head at the inlet side of the pump; Name: lift circulating pump
Description: marking on a device according to a directive or standard that indicates the type of protection implemented or the hazardous environment in which it may operate; Name: explosion protection marking