Description: best volumetric flow of the device with best efficiency; Name: volume flow at best efficiency
Description: Rate of flow at the point of best efficiency; Name: Optimum rate of flow
Description: The operating underpressure PS- is the maximum value of the operating underpressure defined from a safety point of view by the manufacturer of the system for the various components in relation to the atmospheric pressure (1 bar) at the maximum permissible temperature TS1; Name: Max. permissible underpressure PS1- at TS1, room1