本文件规定了液压和电液控制装置的安全要求， 包括液压阀及其控制元件、阀门组合、控制系统、管道和 软管组件、测量装置、支腿和闸板中的内置限压阀和止回阀，以及 当按照工程师的规定使用时，井紧急停止、启动警告、阻塞和控制装置 制造商或其授权代表。不包括压力发生器和 支腿和闸板（如支腿底部阀门，见EN 1804-2:2020）。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies the safety requirements for hydraulic and electro hydraulic control devices, including hydraulic valves and their control elements, valve combinations, control systems, pipes and hose assemblies, measuring devices, built-in pressure limiting and check valves in legs and rams and, as well emergency stop, start warning, blocking- and control unit when used as specified by the manufacturer or his authorized representative. Excluded are pressure generators, and internal valves of legs and rams (e.g. leg bottom valves, see EN 1804-2:2020).All current amendments available at time of purchase are included with the purchase of this document.