{TAIL ~ Underpressure} arises due to {HEAD ~ condensation} of the steam from the steam gas mixture, leaving dryer 15, in condenser 16 and gas evacuation of non condensing gases by vacuum pump 17 
{ TAIL ~ Underpressure } arises due to { HEAD ~ condensation } of the steam from the steam gas mixture , leaving dryer 15 , in condenser 16 and gas evacuation of non condensing gases by vacuum pump 17
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH