本文件提供了变速箱的基本要求，以操作手动和自动开/关和调节功能的工业阀门，包括手动超控变速箱。它包括分类、设计和合格评定方法的指南。交叉引用:IEC 60529ISO 5211ISO 5210ISO 12944-2:2017ISO 12944-5EN 15081ISO 22153EN 15714-3EN 12570EN 15714-1EN 15714-4EN 15714-2购买本文件时提供的所有现行修订版均包含在购买本文件中。

This document provides basic requirements for gearboxes to operate industrial valves for manual and automated on/off and modulating duties, this includes manual override gearboxes. It includes guidelines for classification, design and methods for conformity assessment.Cross References:IEC 60529ISO 5211ISO 5210ISO 12944-2:2017ISO 12944-5EN 15081ISO 22153EN 15714-3EN 12570EN 15714-1EN 15714-4EN 15714-2All current amendments available at time of purchase are included with the purchase of this document.