The face to face dimensions and tolerances, body flange dimensions and maximum height dimensions of the valves shall be in accordance with Clauses 4.2.1, 4.2.2 and 4.2.3 of BS 5163-1:2004. Notwithstanding the above, the body flange dimensions of PN 1

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The face to face dimensions and tolerances, body flange dimensions and maximum height dimensions of the valves shall be in accordance with Clauses 4.2.1, 4.2.2 and 4.2.3 of BS 5163-1:2004. Notwithstanding the above, the body flange dimensions of PN 16 flanges shall also apply to those of flanges below PN 16. 这句话怎么翻译呢?谢谢.

面对面的尺寸和公差,法兰盘模板尺寸和阀门的最大高度尺寸要和分别与条款4.2.1,4.2.2 和4.2.3保持一致(或者说参考条款4.2.1,4.2.2 和 4.2.3 ) .尽管已有上述规定,性能参数为16的法兰模板尺寸同样适用于性能参数低于16的法兰盘.
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