Apparatus for effecting transfer of fluid from any one of a plurality of fluid sources to a single fluid outlet

摘要: An apparatus and method for effecting transfer of fluid from any one a plurality sources to single outlet. The comprises valve head having (i) bore longitudinally extending therethrough, (ii) radially channels, each channel an inlet in communication with corresponding source outlet the bore, (iii) stem movably disposed within head, axially that has inlet, control system rotation axial displacement so as effect or terminate between channels. is configured current position directly other without stopping at intervening positions. In preferred embodiment, further includes coupled vacuum removal residue bore.