{HEAD ~ This arrangement} of packing ring segments and {TAIL ~ holders} provides retractable packing which can close relative to turbine rotor 16 with a minimum pressure drop 
of
{ HEAD ~ This arrangement } of packing ring segments and { TAIL ~ holders } provides retractable packing which can close relative to turbine rotor 16 with a minimum pressure drop
HEAD HEAD HEAD HEAD HEAD HEAD REL 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