本文件规定了标称尺寸不超过200？mm（灌溉控制头的标称尺寸或部件的标称尺寸）的加压灌溉系统控制头（以下简称灌溉控制头）的部件和安装方法的要求。 本文件仅适用于喷灌和微灌（微型喷头、滴灌等）灌溉控制头的地上部件。它适用于基本灌溉控制头，可在其上组装其他灌溉控制和命令组件（电气、电子和液压），但不涉及这些附加组件。 本文件不适用于防止灌溉控制头中的水冻结所需的系统和/或部件，如干桶消防栓或其他类型的消防栓。 本文件未规定构成灌溉控制头的各个部件的结构或操作要求。各部件的相关标准中规定了这些要求。

This document specifies requirements for the components and method of installation of pressurized irrigation system control heads, referred to hereinafter as irrigation control heads, with a nominal size of up to and including 200？mm (nominal size of an irrigation control head or nominal size of a component). This document is applicable only to the above-ground components of irrigation control heads for sprinkler irrigation and micro-irrigation (mini-sprinklers, drip irrigation, etc.). It is applicable to the basic irrigation control head, on which other irrigation control and command components (electrical, electronic and hydraulic) can be assembled, but does not deal with these additional components. This document is not applicable to systems and/or components that can be required to prevent the water from freezing in the irrigation control head, such as dry-barrel hydrants or other types of hydrants. This document does not specify construction or operating requirements for the individual components that make up the irrigation control head. These requirements are specified in the relevant standards for each component.