In steam flow measurement special condensate pots are installed in the immediate vicinity of restricting 
organ. The connection pipes from the restricting device to the condensate pots are full of steam, and from the condensate pot to the meter full of condensate. The condensate pots must be mounted in such a manner that the liquid levels are the same in them. 

The function of the condensate pots is to condensate steam into a liquid (e.g. to protect the transmitter from 
heat, to prevent dribbling), to keep the liquid levels unaltered with overflow and to collect air. The condensate watertransmits the pressure to the transmitter, so that the transmitter itself is not in contact with steam.