... герметичности и тому, по каким стандартам они приведены. In this article is discussed the problems which can appear with conversion of information from one standards to another. For this article was used materials from GOST9544, ISO5208, ANSI FCA 70-2, DIN 3230, MSS SP-61, API598. There are given the recommendations for conversion of information from one standards to another. It's necessary to pay more attention to valve seat leakage and to standards which specify ...

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