{HEAD ~ a multi stage centrifugal compressor} having {TAIL ~ an inlet}, a discharge, and a main rotating shaft which has disposed thereon at least one set of seals, the centrifugal compressor being operable in a loaded and an unloaded condition 
having
{ HEAD ~ a multi stage centrifugal compressor } having { TAIL ~ an inlet } , a discharge , and a main rotating shaft which has disposed thereon at least one set of seals , the centrifugal compressor being operable in a loaded and an unloaded condition
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH