标准摘要
[中文适用范围]： 本国际标准规定了额定温度为-40°C 及以下（低温应用）的阀门的设计、制造和测试要求，即除了在环境温度到低温温度下运行之外，还需要使用低温流体运行。 它适用于所有类型的低温阀门，包括尺寸最大为 DN 150 的真空夹套低温阀门。 本国际标准不适用于 ISO 21013-1 涵盖的泄压阀。 [外文原描述]： ISO 21011:2008 specifies the requirements for the design, manufacture and testing of valves for a rated temperature of -40 °C and below (cryogenic service), i.e. for operation with cryogenic fluids in addition to operation at temperatures from ambient to cryogenic. ISO 21011:2008 applies to all types of cryogenic valves, including vacuum jacketed cryogenic valves up to size DN 150. ISO 21011:2008 is not applicable to pressure relief valves covered by ISO 21013-1.
英文名称Cryogenic vessels — Valves for cryogenic service