DREHBARER VERTEILER FUER FLUESSIGKEIT.

摘要

A flow control apparatus for selectively directing fluid from a fluid supply line to a number of outlet lines includes an outer member having an outer wall, a throughbore forming an annular inner wall and a plurality of spaced, discharge bores formed therebetween. An inner member having an annular outer wall is received within the throughbore of the outer member so that their annular walls face one another. The outer member is rotatable with respect to the inner member to selectively align each of its discharge bores with the fluid passageway of the inner member, and an interlock mechanism is provided to ensure accurate alignment therebetween. The facing surfaces of the inner and outer members are sealed at the fluid passageway by a Teflon seal mounted at one end of a driven piston which is axially movable within the fluid passageway. A second, driver piston is operable to force the driven piston axially toward the outer member so that the Teflon seal is compressed between the facing surfaces of the inner and outer members to prevent fluid leakage at the fluid passageway and an aligning discharge bore.