标准编号：ISO 4126-4:2013
中文名称：过压保护用安全装置 第4部分：先导型安全阀
英文名称：Safety devices for protection against excessive pressure — Part 4: Pilot operated safety valves
发布日期：2013-07
标准范围
This part of ISO 4126 specifies general requirements for pilot operated safety valves, irrespective of the fluid for which they are designed. In all cases, the operation is carried out by the fluid in the system to be protected.It is applicable to pilot operated safety valves having a valve flow diameter of 4 mm and above which are for use at set pressures of 0,1 bar gauge and above. No limitation is placed on temperature.This is a product standard and it is not applicable to applications of pilot operated safety valves.
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