| 摘要 |
1,181,155. Pipe joints. VICKERS-ZIMMER A.G.-PLANUNG UND BAU VON INDUSTRIEANLAGEN. 3] Aug., 1967 [16 Sept., 1966], No. 39811/67. Heading F2G. A flange connection comprises a first inner passage 2, Fig. 1, for a first inner pipeline 1, 1<SP>1</SP>, at least one outer subsidiary passage 4 for a second outer pipeline 3, 3<SP>1</SP>, an annular space 8 enclosing the first passage 4 and seals 14, 15 16 disposed around the first inner passage, the space and the second subsidiary passage, respectively. The seals comprise springs and sealing inserts in grooves. The annular space 8 communicates with atmosphere through bore 9. Two passages 4 are disposed symmetrically about passage 2 leading into annular grooves 7, 7<SP>1</SP>.
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