本标准涵盖了手动操作的要求 尺寸为NPS 1°2至NPS 2的金属阀门，适用于 室外安装，作为管道末端的气体切断阀 燃气服务管线和燃气调节器前，以及 气体的指定表压 管道系统不超过175磅/平方英寸（12.1巴）。这个 本标准适用于在一定温度下运行的阀门 20°F至150°F（°29°C）之间的环境，以及 66摄氏度）。

This Standard covers requirements for manually operated metallic valves sizes NPS 1°2 through NPS 2, for outdoor installation as gas shutoff valves at the end of the gas service line and before the gas regulator and meter where the designated gauge pressure of the gas piping system does not exceed 175 psi (12.1 bar). The Standard applies to valves operated in a temperature environment between °20°F and 150°F (°29°C and 66°C).