The closure of tapered slits 2 insures that no air passes through {HEAD ~ the opening} 70 of {TAIL ~ cap} 17 and through valve body 1 into passage 11 
of
The closure of tapered slits 2 insures that no air passes through { HEAD ~ the opening } 70 of { TAIL ~ cap } 17 and through valve body 1 into passage 11
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH