标准摘要
[中文适用范围]： IEC 60534-4 第 4 部分规定了符合 IEC 60534 系列其他部分制造的工业过程控制阀的检查和常规测试要求。本文件适用于压力等级不超过 Class 2500 的阀门。执行器要求仅适用于气动执行器。本文件不适用于放射性服务、防火安全测试或其他危险服务条件下使用的控制阀类型。如果危险服务标准与本文件的要求冲突，应优先适用危险服务标准。注：本文件可通过采购方与制造商之间的协议扩展到更高的压力等级。 [外文原描述]： IEC 60534-4:2021 specifies the requirements for the inspection and routine testing of control valves manufactured in conformity with the other parts of IEC 60534. This document is applicable to valves with pressure ratings not exceeding Class 2500. The requirements for actuators apply only to pneumatic actuators. This document does not apply to the types of control valves where radioactive service, fire safety testing, or other hazardous service conditions are encountered. If a standard for hazardous service conflicts with the requirements of this document, the standard for hazardous service should take precedence.
英文名称Industrial-process control valves - Part 4: Inspection and routine testing