Description: Period of time during which an item performs its intended function, it includes all the time a machine is continuously running from start-up until it is shut down.; Name: ot
Description: passed time period after comissioning of a system, sub-system, component or piping; Name: Operating time 
Description: The difference between the pressure in the inlet cross-section and the pressure in the outlet cross-section; Name: Min. feed pressure, suction-side