燃气燃烧器和燃气燃烧器具的安全和控制装置 特殊要求 第11部分：工作压力 500 kPa 以上至 6 300 kPa 的自动和半自动截止阀

[中文适用范围]： 完整描述 本文件规定了燃气燃烧器、燃气用具和类似用途器具（不包括燃气基础设施（运输和分配系统））的自动、半自动截止阀和通用阀门的安全、结构和性能要求及测试。本文件适用于在最大工作压力高于 500 kPa 至 6 300 kPa 时使用的控制器，其尺寸最大可达 DN 250，用于燃烧器或使用燃气（如天然气、人造气或液化石油气 (LPG)）的器具中。本文件适用于： — 安装在燃气装置中的阀门； — 直接或间接由电动或机械方式驱动的阀门； — 由液压或气动方式驱动的阀门，包括这些流体的先导阀（如果由电动驱动）并包括释放阀，但不适用于任何用于切换驱动能量的外部电气设备； — 流量由外部电信号控制的阀门，可以是离散步骤或与施加的信号成比例，以及装有闭合位置指示开关的阀门； — 阀门用于器具，但不用于器具外部的气体输送系统。本文件仅涵盖型式试验。本文件不适用于 ISO 23551-1 或 ISO 23555 系列范围内的阀门。 [外文原描述]： This document specifies safety, constructional and performance requirements and testing of automatic, semi-automatic shut-off valves, and general purpose valves for gas burners, gas appliances and appliances of similar use excluding use in fuel gas infrastructures (transportation and distribution systems). This document applies to controls for use at maximum operating pressures above 500 kPa up to and including 6 300 kPa with sizes up to DN 250 for use on burners or in appliances using fuel gases, such as natural gas, manufactured gas or liquefied petroleum gas (LPG). This document applies to: — valves being mounted in gas installations; — valves directly or indirectly actuated, electrically or by mechanical means; — valves actuated by hydraulic or pneumatic means, including the pilot valves for these fluids if actuated electrically and including release valves, but not to any external electrical devices for switching the actuating energy; — valves where the flow rate is controlled by external electrical signals, either in discrete steps or proportional to the applied signal and valves fitted with closed position indicator switches; — valves to be used in appliances, but not in gas transfer systems outside appliances. This document covers type testing only. This document does not apply to valves covered under the scope of ISO 23551-1 or the ISO 23555 series.