| 摘要 |
In a top part for a sanitary shut-off valve which, in a housing, has a fixed control disc and a control disc which can be rotated relative to the first control disc, a lubricant reservoir is provided in the housing, this reservoir being connected via a system of passages to the area of contact between the two control discs. The system of passages comprises at least one through hole in at least one of the two control discs (Figure 1). <IMAGE> |
