ISO 12490:2011定义了根据ISO 14313和API规范6D制造的阀门所用致动器的机械完整性和尺寸要求。 ISO 12490:2011适用于安装在管道阀门上的所有类型的电动、气动和液压执行机构，包括安装套件。 ISO 12490:2011不适用于安装在控制阀上的致动器、用于调节的阀门、海底服务中的阀门、手持式动力装置、独立手动变速箱、仪表管和相关配件以及致动器控制设备。

ISO 12490:2011 defines the requirements for mechanical integrity and sizing of actuators used on valves manufactured under ISO 14313 and API Specification 6D. ISO 12490:2011 is applicable to all types of electric, pneumatic and hydraulic actuators, inclusive of mounting kit, installed on pipeline valves. ISO 12490:2011 is not applicable to actuators installed on control valves, valves being used for regulation, valves in sub-sea service, handheld powered devices, stand-alone manually operated gearboxes, instrument tubing and associated fittings and actuator control equipment.