| 摘要 |
A bulkhead, is kept air- and dust- tight therein by a cover plate (42) which tightly closes a corresponding bulkhead opening (40) and which includes passages (44). The passages (44) are tightly closed by means of plugs, a half-connection (60, 62) of a plug-in connection is to be inserted in an air- and dust-tight manner for each line to be laid. A part of the line (36', 36'') concerned is connected to each of the two half-connections (60, 62). The half coupling 60 is equipped with a flat peripheral groove 72 which carries a sealing ring 74 which co- operates with a depression in 42. <IMAGE> |
