{HEAD ~ Final purge} and repressurisation of {TAIL ~ the inert gas selective beds} is carried out with waste gas 26 from the other inert gas adsorber or with N2 
{ HEAD ~ Final purge } and repressurisation of { TAIL ~ the inert gas selective beds } is carried out with waste gas 26 from the other inert gas adsorber or with N2
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH