Patent ID: 6126139
Filing Date: 2000-10-03
Classification: F16K

Abstract:
Valve unit for evacuation and filling of media, especially liquids, in a system comprising a valve housing with at least two valve seats, in one of said valve seats there being disposed a valve part for evacuation, and in said second valve seat there being disposed a valve part for filling, characterized in that each valve part (5) comprises a longitudinal channel (1) and at least two communication holes (3) extending from the longitudinal channel (1) to the valve part's outer surface (20), said channel (1) being provided with a through-flow cut-off (14) which divides the channel into two part-channels, a first part-channel (16) and a second part-channel (17), each of said part-channels (16, 17) comprising a communication hole (3), and a slide (6) arranged around the valve part (5), said slide (6) having at least one recess (18) on the surface (21) facing towards the valve part (5) and forming at least one closed cavity, said slide (6) being activated by the feeding of a gas or liquid medium to the valve seat.