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