Fully welded body ball valves for pipeline transportation systems in petroleum and natural gas industries
全国阀门标准化技术委员会(SAC/TC 188)
本标准规定了石油和天然气工业管线输送系统用全焊接球阀的术语和定义、结构型式和参数、技术要求、材料、试验方法和检验规则、标志、包装和储运。
本标准适用于公称压力PN16～PN160或Class150～Class900、公称尺寸DN50～DN1500或NPS2～NPS60；介质为原油、成品油和天然气；管线输送系统用的法兰连接和焊接连接全焊接球阀。
This standard is the original Chinese electronic standard.
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