标准摘要
[中文适用范围]： IEC 60534 系列的这一部分提供了采购大多数过程系统控制阀通常所需的要求列表。没有尝试包括任何可想象的过程的所有可能的要求。该列表的排列格式旨在帮助规范编写者标准化数据表示，并作为数据处理设施使用的基础。其中包含一套详细的说明，以确保缩写术语得到充分理解，并且始终输入一致的数据。 [外文原描述]： IEC 60534-7:2010 provides a list of requirements that are necessary for the procurement of the majority of control valves for process systems. The list is arranged to assist the specification writer with a standardized presentation of data and also to be a basis for use with data processing facilities. A detailed set of instructions is included in order to ensure that the abbreviated terms are fully understood and that consistent data entries are always made. This second edition cancels and replaces the first edition published in 1989. This edition constitutes a technical revision The main changes with respect to the previous edition are: - the standard has been updated to reflect digital electronic accessories and fieldbus protocols; - to aid clarification, the explanation of terms and definitions contains the same subheading as the information required in the control valve data sheet; - the column numbering system has been replaced with descriptive title headings.
英文名称Industrial-process control valves - Part 7: Control valve data sheet