A second source of seal air is provided from a tap port disposed at {HEAD ~ a predetermined location} on {TAIL ~ the compressor discharge} 
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A second source of seal air is provided from a tap port disposed at { HEAD ~ a predetermined location } on { TAIL ~ the compressor discharge }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL