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1部分：自动和半自动关闭阀

[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（以下简称阀门）。本文件适用于安装在燃气燃烧器和燃气用具上游的常闭阀门和通用阀门，其声明最大工作压力最高可达 500 kPa，用于燃烧器或使用天然气、人造气或液化石油气 (LPG) 等燃料气体的器具。它不适用于腐蚀性气体和废气。本文件适用于： — 直接或间接通过电动或机械方式驱动的阀门； — 通过液压或气动方式驱动的阀门； — 流量由外部电信号控制的阀门，可以是离散步骤也可以与施加的信号成比例；以及 — 配有关闭位置指示开关的阀门。本文件仅涵盖型式试验。 [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, hereinafter referred to as valves. This document applies to normally closed valves and general purpose valves mounted upstream to gas burners and gas appliances with declared maximum operating pressures up to and including 500 kPa, for use on burners or in appliances using fuel gases such as natural gas, manufactured gas or liquefied petroleum gas (LPG). It is not applicable to corrosive and waste gases. This document applies to: — valves directly or indirectly actuated, electrically or by mechanical means; — valves actuated by hydraulic or pneumatic means; — 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. This document covers type testing only.