| 摘要 |
<p>PCT No. PCT/EP89/00044 Sec. 371 Date Aug. 31, 1989 Sec. 102(e) Date Aug. 31, 1989 PCT Filed Jan. 17, 1989 PCT Pub. No. WO89/06763 PCT Pub. Date Jul. 27, 1989.A process and a device are useful for protecting and supporting a seal in a valve arrangement. The device comprises a closure member designed as a slide gate having a translational or rotational movement, a seat region of the valve housing parts corresponding to said closure member, a closure part which can slide in the direction of the degree of freedom of the closure member, and a seal or sealing position which is effective between the closure member and the seat region or which co-operates with the closure part. Said process and device ensure, amongst others, that the seal in a valve arrangement of the type described in the introductory part is protected and supported in positions other than the closed position. To this end, the load on the seal or sealing position which ensures sealing in the closed position of the valve arrangement is applied by the closure part in positions other than the closed position.</p> |
